Everything You Need To Know About CNC Machines

About CNC Machining

CNC makers are electro-mechanical gadgets that adjust factory devices utilizing computer system programs inputs. Did you recognize? The name “CNC” in fact represents Computer Numerical Control and also it represents one of 2 typical techniques (3D printing modern technology like SLA, SLS/SLM, as well as FDM being the various other) to produce prototypes from an electronic software application data.

Everything You Need To Know About CNC Machines

 

Computer mathematical control (CNC) is the automation of maker tools using computer systems performing pre-programmed sequences of equipment control commands. This is in comparison to devices that are by hand controlled by hand wheels or bars, or mechanically automated by cameras alone.

In contemporary CNC systems, the design of a mechanical component and its manufacturing program is very automated. The part ‘s mechanical dimensions are specified using computer-aided layout (CAD) software, and after that converted right into manufacturing instructions by computer-aided manufacturing (CAM) software program. The resulting directives are changed (by “post processor ” software) right into the certain commands necessary for a particular equipment to generate the component, then packed right into the CNC equipment.

 

What Is CNC Machining? Overview of the CNC Machining Process

 

The first CNC devices were established in the 1940s and 50s and also rely upon a common telecommunication data storage space technology called “punched tape” or “perforated paper tape.” Punched tape technology is lengthy obsolete as the information tool promptly transitioned to analog and then electronic computer system handling in the 1950s and also 1960s.

Exactly how it Functions: Machining generally is a method to change a supply piece of product such as a block of plastic as well as come to a completed product (usually a prototype part) through a regulated product removal process. Just like the other model advancement innovation, FDM (3D printing), CNC counts on electronic directions from a Computer Helped Manufacturing (WEB CAM) or Computer system Helped Design (CAD) data like Solidworks 3D. The CNC machine analyzes the design as instructions for reducing model parts. The ability to configure computer system devices to control equipment devices swiftly advances shop productivity by automating the very technological as well as labor intensive procedures. Automated cuts improve both the rate and also the accuracy with which model parts could be created – especially when the product is crucial (such as is the instance with polypropylene – learn more about polypropylene).

 

Conventional Technologies:

Drills: Drills work by rotating a drill bit and moving the bit into the material, this will remove unwanted material and leave the hold in the stationary block of stock material.

Turrets: Lathes, very much the inverse of drills, spin the block of product against the drill bit (as opposed to rotating the drill little bit and placing it right into contact with the product). Lathes usually reach the material by laterally removal of a round substrate, and using a cutting tool until it carves away unnecessary material of the spinning product.

Milling Machine: milling machines are probably one of the most usual CNC type machines being used today. They involve making use of rotating cutting devices to remove material from the stock unit. The use of mills, held in a powered spindle, is a common type machine tool for cutting and shaping metal or plastic raw materials.


Novel Technologies:

Electric and/or Chemical Machining: There are a variety of novel modern technologies that make use of specialized methods to cut material. Examples include Electron Light beam Machining, Electrochemical machining, Electrical Discharge Machining (EDM), Photochemical machining, and also Ultrasonic machining. The majority of these modern technologies are extremely specialized and also are made use of in multiple applications for mass-production including almost every aspect of auto production and these kinds of products.

Various other Cutting Mediums: There are a number of other novel modern technologies that use different mediums to cut material. Examples include laser cutting and etching equipment, oxy-fuel reducing machines, plasma cutting devices, as well as water-jet reducing technology.

Products Used: Nearly any kind of product could be utilized in a CNC maker. It actually depends upon the application. Common materials include steels such as light weight aluminum, brass, copper, steel, and titanium, along with wood, foam, fiberglass, and plastics such as polypropylene.

Application For Fast Prototyping: CNC devices were the very first significant break-through in the area of rapid-prototyping. Before numerical control (when it comes to punched tape technology) as well as computer numerical control (with analog and electronic computing), components had actually to be machined by hand. This usually caused bigger margins of error in end prototype items and also even if/when makers were manually used for bigger range production.

Why Change From Metal Parts To Plastic Parts

Bottom line, change from metal to plastics and get savings

For many years, the world of manufacturing only focused on using metals for manufactured parts. Then, very slowly, the engineers and processors realized that the metals were heavy, they required lubrication, and they corrode. Also along the way, the plastics got better and with manufacturing techniques were made significantly stronger, pound for pound, than most metal parts.

Some major turning points happened when the auto manufacturers started to use plastics. This made their vehicles lighter, and therefor more energy efficient. Gas mileage soared, and the cars got quieter. Of course the old guard complained that cars are now ‘plastic’, with that negative connotation in their voice. Yet here we are, a few short decades removed, and our cars get twice the mileage, run quieter, are expected to got 200,000 plus miles before needing major work, and need significantly less maintenance.

How was all this possible?

Once again, it was rather a simple evaluation of cost versus performance.

  • The plastic materials don’t corrode
  • They don’t need regular lubrication
  • They are lighter
  • They are much stronger pound for pound that their metal counterparts

Engineers started to learn about the vast number of plastic materials, and methods to mold parts, and not have to machine them from metals at a much higher cost. While considering the change from a metal part to a plastic part, the engineers looked at a wide range of engineering and performance plastics that offered several key advantages over metals.

Plastics like Acetal, Delrin, Nylon, PET, PTFE, PEEK, Ultem and many more offer some major advantages over metals. OSHA has worked with many manufacturing plants, and have recommended materials like UHMW Polyethylene in guide rails and wear strip applications to drastically reduce the noise in processing plants. The plastics are extruded, compression molded or pressed into plastic sheets, extruded into round rods or even strips and bars. These are then easily converted into finished goods with standard CNC machining techniques, that once again are easier and quieter to machine that steel.Chemical Resistant Plastic Sheets and Plastic Rods

While some of the plastics are considered expensive by the pound, they cost compared to machining a metal part is normally much less. Also, most of the performance plastics carry approvals for food contact, and some are even implantable for medical applications.

Plastic materials are also generally much more corrosion resistant, and are excellent for chemical tanks, chemical resistant parts and can be used at high temperatures with these chemicals. Materials like HDPE, Polypropylene, PEEK, PEI, Ultem and more, are all excellent materials for chemical applications.

The Future Of Medical is in Plastics

“ALPHARETTA, Ga., October 29, 2014– Solvay Specialty Polymers – a leading global supplier of high-performance thermoplastics offered for use in a range of markets including implantable and non-implantable medical devices – will deliver a broad-ranging technical presentation on the benefits of high-performance polymers over metals in the healthcare industry. Trevor Spence, sales development manager for Solvay Specialty Polymers, will present a talk entitled “Coming to Grips with Metal-to-Plastic Conversion for Instruments in Healthcare” at the Medical Plastics Minitec, sponsored by the Philadelphia section and the Medical Plastics Division of the Society of Plastics Engineers (SPE) Nov. 6 at the Desmond Hotel and Conference Center in Malvern, Pa.”

This is just one of dozens of major manufacturers changing the way we all live and work. Solvay has re-engineered the processing of materials that will work better and last longer than the previous metal part. The molded plastic parts can be made to fit and work better than the old methods used to produce metal instruments (see picture above).

Before you design your next part, or even use more of the same old metal parts you have used for decades, look to plastics. These materials are engineered to make better parts, faster, lighter and yet out perform the metal predecessors.

Make Anуthіng Wіth Pоlусаrbоnаtе Sheet Fаbrісаtіоn

Pоlусаrbоnаtе sheet іѕ the mоѕt соmmоn fаbrісаtіоn material being uѕеd bу mаnу companies thеѕе days. It іѕ a sort of рlаѕtіс thаt can be uѕеd tо produce a vаrіеtу of impact resistant products; ѕресіfісаllу іn іtеmѕ that аrе іmрасt rеѕіѕtаnt аnd trаnѕраrеnt іn nаturе. It іѕ a ѕоrt оf рlаѕtіс nаmеd аѕ thеrmорlаѕtіс or еngіnееrіng plastic due to thеіr transparency аnd іmрасt resistance. These рlаѕtісѕ are uѕеd Bent Polycarbonate Sheetеxtеnѕіvеlу іn many рrоduсtѕ such as eyewear lеnѕ, in medical dеvісеѕ, аutоmоtіvе соmроnеntѕ, рrоtесtіvе gеаr, grееnhоuѕеѕ, Dіgіtаl Dіѕkѕ (CDs, DVDѕ, аnd Blu-rау) and еxtеrіоr lіghtіng fіxturеѕ.

The Pоlусаrbоnаtе’ѕ hеаt rеѕіѕtаnсе соmbіnеd wіth flаmе rеtаrdаnt mаtеrіаl mаkеѕ thеm mоrе popular аmоng mаnу buѕіnеѕѕ houses whісh аrе into manufacturing оf fabricated рrоduсtѕ. The іmрасt resistance сараbіlіtу of Polycarbonate fаbrісаtіоn is much hіghеr whеn compared to thе other sorts of рlаѕtіс. Lіkе аlumіnum ѕhееt mеtаl, thе Polycarbonate fаbrісаtіоn can be fоrmеd аt room temperature. Thіѕ flexibility of trаnѕіtіоn is thе major rеаѕоn fоr uѕіng Polycarbonate over оthеr рlаѕtіс mаtеrіаlѕ by many соmраnіеѕ. Formed Polycarbonate Sheet Police Shield

Eѕресіаllу іn іnduѕtrіеѕ whеrе hіgh іmрасt rеѕіѕtаnсе аnd trаnѕраrеnсу іѕ rеԛuіrеd, thе Polycarbonate Sheet fabrication іѕ used еxtеnѕіvеlу. Sоmе аррlісаtіоnѕ where Pоlусаrbоnаtе іѕ used over оthеr sorts оf рlаѕtіс are сlеаr wіndоwѕ on рrоtоtуре mоdеlѕ, color tinted trаnѕluсеnt рrоtоtуреѕ, clear tubes fоr sports еԛuірmеnt prototypes, dіffuѕеrѕ and lіght pipes fоr LEDs, сlеаr mоldѕ fоr urеthаnе аnd ѕіlісоnе саѕtіng, 3D рrіntеd models fоr hіgh hеаt аррlісаtіоnѕ whеn ABS іѕ nоt an орtіоn аnd machinery guаrdѕ. Aраrt from thеѕе, tіntеd Polycarbonate is uѕеd еvеn tо rеduсе the glаrе іn LEDѕ. There аrе numerous vаrіеtіеѕ оf Pоlусаrbоnаtе available for serving dіffеrеnt рurроѕеѕ of the соmраnіеѕ. This makes Polycarbonate sheet one of the best plastic sheet materials.

Dіffеrеnt tуреѕ of Polycarbonate sheets аrе mаnufасturеd bу different еntіtіеѕ like Covestro (formerly Bayer and Sheffield Plastic) called Makrolon Polycarbonate Sheet or Polygal Plastic. They both use high quality Polycarbonate resins and produce excellent quality glazing grade Polycarbonate sheet.  Thе vаrіаnсе іn thе Pоlусаrbоnаtе fаbrісаtіоn among dіffеrеnt еntіtіеѕ lіеѕ іn thе аmоunt of glass fіbеr thеу соntаіn and thе vаrіаnсе іn thе mеlt flоw. Sоmе Polycarbonate fаbrісаtіоnѕ соnѕіѕt of аddіtіvеѕ such аѕ ultrаvіоlеt stabilizers thаt рrоtесt the sheets frоm lоng time еxроѕurе tо thе ѕun. Though thеrе аrе сеrtаіn types оf Pоlусаrbоnаtе fabrications whісh are hazardous іn соntасt with food thеу аrе еԛuаllу ѕаfе and рrоtесtіvе.
Polycarbonate sheet fabricated box
Thе hаzаrdоuѕ Pоlусаrbоnаtеѕ are generally аvоіdеd bу thе mаnufасturеrѕ; kееріng іn vіеw the ѕаfеtу оf the clients. Yоu саn оrdеr for customized Pоlусаrbоnаtе fabricated sheets if you аrе іntо manufacturing оf a lаrgе lot оf рrоduсtѕ. Fаbrісаtіоn bу using Pоlусаrbоnаtе has bесоmе a mоѕt common рrосеѕѕ fоr mаnу соmраnіеѕ whісh are into mаnufасturіng оf hеаt rеѕіѕtаnt аnd high impact рrоduсtѕ.

Why Use A CNC Machine

Is CNC Machining Difficult To Do

The process of precision machining creates a wide variety of objects we use daily and it is one of the biggest converting techniques being implemented in the machining industry.

Many pieces such as custom parts, machines, tools equipment systems are shaped with a high-level of accuracy using high quality precision CNC machines that utilize sophisticated software such as CAM (Computer Aided Manufacturing) or CAD (Computer Aided Design) to read gleans or blueprint designs.CNC Milling of performance plastic parts

A number of materials, including: high strength sword, copper, graphite, titanium and engineering plastic, to identify a few. It is also possible to produce parts with extraordinary precision and are exceedingly duplicatable with close tolerances.

Here are 4 key benefits of using CNC machines:

Increased Efficiency In Production

These machines which are technically advanced surpass the abilities of human beings, as they are able to work at a much faster pace.In addition, these high-tech machines reduce the number of hired employees required as the machines can do more in less time.

Elimination Of Most Human Error

The cost of manufacturing is dramatically reduced with the use of precision machining because the use of CNC machines (computer numerically controlled) can develop precise factors with little danger of being subjected to error.

Much Quicker Processing and Assembly

Precision engineered machines start furnished with automatic assembly features which eliminates the need for manual assembly. Without the is necessary to human hands to assemble factors companies can take on large jobs and more of them as production time is reduced greatly.

Significant decrease In Material Waste

The introduction of precision machining has reduced much debris for corporations who use expensive raw material to produce high-quality parts and factors. The ability to utilize all of the material for product saves corporations a lot of money.

The demand for precision machining is increasing as corporations look for ways to increase productivity, raise its effectiveness and increase their bottom line. In today’s competitive economic marketplace, business must realize the best interests of precision CNC machining and take the time to invest in health professionals company that can program and oversee small to large jobs efficiently. Read more about machining of materials.

How The Machining Process Works

What is Machining?

Machining is the procedure of eliminating product from a larger piece to alter the shape, likewise referred to as a job item or component. Traditional machining typically makes use of powered devices like turrets, lathes, drill presses, planers and also mills. Transforming a log right into veneer or Turning metal rod on a latheboards is machining. Honing an axe on a mill is machining. Almost all produced items are machined in some way. Exploration holes, crushing grooves, planing a surface area level, hollowing out a tube – all these procedures are instances of machining.

Steel and plastic materials are usually first to mind when machining is discussed, however various other materials such as wood or rock could additionally be machined. In standard machining, a sharp blade or cutting bit made from product harder than the work-piece is turning at high speed and brought to a material to be machined, this cuts and also pieces or chips of the work surface product are removed. The rate of rotation and also the depth of the cut are closely controlled. In order to maintain both the tool as well as the work-piece cool, cutting fluid might be guided at the user interface where the blade makes contact.

Jigs as well as fixturing components are essential to control exact machining. A jig installs onto the work-piece while a component holds the work surface steady as well as protected. Together, jigs as well as fixtures maintain the component in the proper alignment and positioning throughout machining, guaranteeing the correct surface is offered to the blade at the right angle. For some operations, simple vises or C-clamps are made use of. For even more intricate procedures, the device and pass away manufacturer (a machinist with specialized abilities) produces details components from design drawings.

CNC is the New Machining TechnologyCutting plastic sheet with CNC milling machine

Technology has brought better automation and also improvement to standard machining operations. A process that when took several manual modifications as well as re-positioning of the work-piece along with cautious lengthy dimension can now be performed successfully and also consistently with robotics as well as laser accuracy. This process is called CNC machining. Modern machining implies accuracy manufacturing, with the capability to transform out thousands of countless perfectly identical pieces, rapidly as well as with much less thrown away product.

As extremely technical industries have actually developed, the need for accuracy manufacturing has increased quickly. Smoother surface areas, tighter resistances, narrower cuts, as well as enhanced precision of opening placement are required for semiconductor, aerospace, fiber optic and clinical equipment. The modern technology of measurement has advanced too, making it feasible to confirm ultra accuracy machining leads to the micron level.

Pictures of a warm, dirty shop with chips flying all over could be uppermost in mind when machining is mentioned, however modern ultra accuracy CNC machining are a much more tidy and clean environment. A lot like the clean areas of semi-conductor and pharmaceutical fabrication, dirt and also international product impair coatings as well as misshape dimension in accuracy manufacturing.Wire EDM Machining center

Where older, traditional machining methods depend on sharp little bits of tungsten or carbide, modern ultra precision machining could also use electric sparks (EDM or electric discharge machining), electrochemical machining (ECM or turn around electroplating), lasers, or jets of incredibly high-pressure water to evaporate or remove product. These procedures enable the machinist to work with materials that were difficult to maker with conventional strategies, like titanium or porcelains. The contemporary approaches of precision machining make it possible to develop better devices and also jigs for standard machining too, raising efficiency for the old methods and lowering waste.

The Big Break

I have been previously wracking my mental faculties considering what you should reveal soon since i never experience I have been previously quite profitable. No taking pictures, no cropping and editing, no producing.

Trash, the inventive brain’s been performing rather effectively, though the request has hit a brick wall.

I refer to it the top bust since often We need the bust. The creative imagination never ever puts a stop to – the good news is, it never ever neglects – but you’ll find circumstances to be practiced with a organization side of life and circumstances to be practiced with a personal side of life and sometimes you have to pull away from the action of creative imagination to appease these two creatures.

It’s often a guilt ridden road. Non-productivity in one area can wreak havoc on the inventive mind. In my case, though, not tending to the business/personal side of life wreaks havoc on the inventive mind. I get overwhelmed with what needs to be accomplished on all levels of life and end up in a vegetative state in front of the TV. I’ve found that taking a bust to complete the business/personal side of life often leads to greater advancement on the inventive side of life.

I’ve also found you’ll find steps to help along the way.

Now you’re probably wondering how to accomplish all of this if you have a day job and you dedicate your weekends to creative imagination. This then becomes a frame of mind. One or two weekends out of the year, think about this, isn’t that much time considering the mind numbing tasks are tended to and you can now devote the rest of the year to your creative imagination. Plus you have the evenings. You might not want to schedule two back to back weekends, but kicking these tasks out of the way releases you from the constant nagging that may be blocking your inventive genius.

And one more thing. Mind numbing tasks often open the mind to spectacular ideas. You may be surprised at what surfaces while tending to the mind numbing side of life. Just remember to write it down.

Will this work for you? I don’t know. But I do know that this is my last weekend of mind numbing tasks. In the past two months I’ve scoured the fridge, organized the closets, polished the windows, scrubbed the dust from the blinds, cleaned the light globes, swept and washed the pollen from the porch, erased black marks from the walls (and a ton of other things) and all while creating new avenues for my organization. Doing it all one Sunday or one half Sunday at a time.

I’m ready to move forward. To dedicate the rest of the year to the inventive journey.

Plan and stick to that plan and your inventive mind will thank you.

Peace on your journey – Kerri

The Simple Working Mechanism and Defining Factors of the English Wheel

The English Wheel is a critical industrial tool used in the field of mechanical engineering. It is considered to be the most prudent investment that allows you to work efficiently with sheet metal.

How is it Defined?

It is a large C shaped device that is used for creating compound curves for different projects. It is this large C shape that plays a vital role in most of the industries that deal in framing and designing thin metal pieces. It is also a sheet metal fabrication device that furnishes curves to metal parts, metal sheets and/or panels made from steel or aluminum.

The most prominent work of this tool is typically found in the different types of panels of steel and aluminum that are stretched and polished to suit a variety of applications. It offers peerless flexibility in manufacturing panels with a variety of curvatures. This tool is extremely helpful in operations such as building fuel tanks, customized vehicle bodies, creating art installations and many more. In point of fact, it is also extensively used in producing prototypes of cars, bikes, airplane parts, and for small jobs like seat cowls and motorcycle tanks. In addition, they can also be used for more advanced machine in the form of a multi-station work center. All these applications stand to benefit from the implementation of this simple device.

Some Prominent Standard Factors of the Machine

1. Heavy Duty Construction

2. Quick Release Lower Anvil

3. Height 60″

4. 8″ Top Wheel

5. Throat Depth 28″

6 Weight 150 pounds

7. Floor stand, one flat anvil and 5 pieces radius anvils (2 3/8″, 3″, 5″, 8 1/2″, 12″)

8. Precision Ball Bearings

Nonetheless, in addition to these defining features, this machine can also be used for creating compound curves on varied metals like mild steel, copper, and brass.

The Working Principle

The principle of working of the English Wheel is absolutely very simple. It consists of two wheels through which a sheet of metal is extended. The lower wheel of this tool is known as the anvil wheel. As the sheet of metal passes through the two wheels, the applied pressure that is exerted by the wheeling mechanism causes reduction in the metal thickness. While the thickness of the metal keeps reducing, the metal slowly gains a curvature equivalent to the shape of the wheels that it passes through. Unlike plastics, which are formed by use of heat and pressure. The English wheel simply uses the pressure of an overhead roller to control the amount of curve put into the metals.

In this manner, the wheeling machine helps in creating curved panels in a short duration of time ensuring consistent and good results in the end. Although, it takes plenty of time to understand the entire working and handling of this high-end tool, learning the ropes of operating this machine isn’t rocket science. With proper dedication to learning and applying appropriate techniques, a fabricator can master the art of using this machine very well. Owning to all such aspects, the English wheel has emerged as the most effective and popular machine in every metal fabrication sector across the world.

FTC takes Green Lumber Seriously, American Plastic Lumber Taken to Wood Shed

FTC Takes Plastic Lumber Manufacturers to the Wood Shed for Misleading Green Claims
By Leonard Gordon and Michael S. Isselin on July 21, 2014

While enjoying these lovely summer days, did you ever wonder how many milk jugs or detergent bottles went into making that “green” picnic table you’re sitting at? You may now. The already peculiar concept of “plastic lumber” is further complicated when manufacturers make false statements about its contents. As new products emerge touting environmental attributes, the FTC continues to warn manufacturers, distributers, and marketers of environmentally-friendly products against misleading consumers as to how “green” the product is.

In two recent cases, the FTC took aim at a plastic lumber marketer and a manufacturer, both advertising and marketing products said to be made (almost) entirely of recycled plastics. Both companies have now settled with the FTC and are prohibited from making such misleading representations.

American Plastic Lumber and FTC

On Thursday, the FTC settled with Engineered Plastics Systems, LLC (“EPS”), a manufacturer, advertiser, and distributer of plastic lumber products such as picnic tables and benches. In its complaint, the FTC alleged that EPS’s advertisements and marketing materials deceived consumers into believing the plastic lumber products were made entirely of recycled plastic. For example, the materials read “Made entirely of recycled plastic lumber” and “All recycled plastic design.” According to the FTC, these representations would lead the average consumer to believe that the products were composed entirely of, or almost entirely of, recycled plastic, however, the FTC found that the products contained an average of only 72 percent recycled plastic. This deceptive and misleading conduct, in violation of the FTC Act, put EPS in hot water with the FTC.

Under the settlement, EPS is prohibited from making similar claims that deceive consumers, and EPS must ensure claims are true, not misleading, and substantiated by proper evidence before stating information about recycled contents or environmental benefits of a product (or packaging). Additionally, EPS may be required to provide scientific research to verify its claims, and must give evidence that the materials used were taken from the waste stream according to the FTC’s “Green Guides for Environmental Marketing.”

The EPS settlement came less than a month after the FTC settled a similar case with American Plastic Lumber, Inc. (“APL”). Like EPS, APL distributes plastic lumber products such as picnic tables, benches, and speed bumps. APL hit a speed bump of its own after the FTC alleged its advertising and marketing materials deceived consumers into believing the products were made of virtually all recycled plastic. In fact, APL’s products averaged less than 79 percent of recycled plastic, and the FTC found no recycled content at all in nearly eight percent of APL’s products.

Similar to EPS, the settlement prohibits APL from making false representations about the recycled content of its products unless it is true, not misleading, and is backed up with evidence. APL is also required to maintain and make advertisements and marketing materials with claims covered by the settlement available to the FTC for five years.

These cases confirm that Green Claims remain a priority at the FTC. As “green” products continue to hit the market, the FTC continues to enforce its “Green Guides” and pursue “green” claims through consent orders with the violating companies without providing consumer redress. To avoid deceptive pitfalls, companies advertising and marketing products with recycled content should carefully review the FTC’s “Green Guides.” Otherwise, you might end up in the FTC woodshed.

Using an online sourcing guide to locate a new supplier may be a better alternate over Google

Should you use an online sourcing guide?

If you are looking for better search results as an alternate to using Bing or Google for commercial searches, consider using one of the large Sourcing Guides. Though Google search does provide a great number of possible suppliers, the results include any supplier, regardless of location, quality of materials, or if a supplier or not. Many professional purchasing agents have switched to business friendly online industrial discovery guides.

At the beginning of the internet as we know it, web searching was very limited, Google was not born yet. These searches were very limited at best back then, and was limited to searching your BBS or local service provider, think AOL. Now days, the average searcher uses either Bing, Yahoo or Google for searching. The small professional business sourcing providers like Thomas Net, BrownBook or MacRaes Blue Book handle the commercial markets extremely well.

With Bing and Google delivering a broad range of search results, and for those that need a highly specific and local company, the large business directories have done very well. Searching the big 3 gives you about the same range of results. The commercial types of search providers do some investigation of their advertisers prior to adding them to search results. The focus seems to be quality versus quantity as far as sources are concerned.

What a ThomasNet Search Result Looks Like

ThomasNet Search Screen

ThomasNet Sourcing Guide

If you are searching online using an industrial guide, you might get significantly better results versus searching with Google. While Google does provide a massive listings of results, this group of results may include suppliers, YouTube videos, model makers or small business that may be  running from a personal garage or E-bay store, with no regard to location or quality of products. The Industrial Supplier Sourcing Guides sort suppliers by State, and then provide a detailed company profile on each supplier.

Let’s look at an example of the differences between a Google search and a ThomasNet search for the same items.

  • Searching Google for Natural UHMW Rod yields 359,000 results, but ThomasNet delivers just actual 59 manufacturers and wholesale suppliers.
  • Need Delrin Rod, Google spits out a whopping 417,000 results, while ThomasNet delivers just 64 quality producers and stocking suppliers.
  • Do a search on Google for PVC round rod and get 644,000 results, and ThomasNet supplies 88 results in the full USA search.

ThomasNet does not deliver any ‘Mom and Pop’ style companies, YouTube videos of UHMW sheet or rod used for a high school students skateboard wheels, nor any stories of how a mechanic fixed a car using a sliver of UHMW rod.

ThomasNet only provides real companies with real materials that can supply the specified materials. Many of the biggest names in industry use ThomasNet and/or MacRae’s Blue Book as a sourcing platform.

MacRAE's Blue Book Search Results Page

MacRAE’s Blue Book Search Results Page

Why do reputable companies pick the best Industrial Sourcing Guides? The easy answer is excellent results.

Buyers of industrial materials don’t want to sort through 10’s of thousands of results to find a supplier that carries and stocks the item they search for. Using an Industrial Supplier Sourcing Platform saves a huge amount of time and effort in finding the required items. Buyers find the unique commercial material, and move on to the next item they need to buy. No wasted clicking on ‘How to move a freezer’ video, no ‘I rolled my Jacuzzi on UHMW rods to the back yard’ stories.

Just real suppliers of the specific items you may be searching for.

Try one of the many Industrial Supplier Sourcing Platforms for your next commercial material search.

Topic: ThomasNet Supplier Sourcing Platform

Why Use Dupont Delrin Instead of Copolymer Acetal Rod

Is Dupont Delrin the same as Acetal CoPolymer?

The best answer is NO, but both have similar properties.

The Copolymer Acetal is the common name for one of the largest families of thermoplastics, with a chemical name of POM or PolyOxyMethylene. Acetal comes in two standard grades: the first is the Copolymer acetal, or POM-C. The second type is homopolymer acetal, or POM-H; in the industry this is called Delrin®, which is a resin produced by Dupont. These two types of acetal has its very own set of advantages and drawbacks, and yet they are similar in many aspects.Machined Acetal Rod Part

Why You Might Choose Acetal Copolymer

The Acetal copolymer type has many unusual qualities and exhibits outstanding performance at a slightly lower cost than the Dupont Delrin® brand material. Acetal copolymer has uniform consistency throughout the material, with no center line porosity. It also has a reduced stress level, as well as  a very high dimensional stability, it can also be used with a continuous temperature of 180° deg; F (80 deg; C).  The copolymer acetal grades meet the FDA, USDA, NSF, and 3-A Dairy compliant. Acetal copolymer materials are stocked and available in a wide variety of sizes, and also can be supplied in a variety of standard and special colors, including: natural, black, blue, red, yellow, green, brownish, and also grey (some may require minimums).

Some Important Factors Of Delrin Homopolymer:Chemical make up of Dupont Delrin Materials

The Dupont Delrin grade of material has a better dimensional stability as a result of a low level of crystallinity. The resistance to temperatures give Delrin better resistance to hot water and also many chemicals, especially high pH (standard). The Delrin has a lower coefficient of friction and a very low water absorption, especially in wet environments.

Dupont Delrin Acetal Homopolymer

The Dupont Delrin® 150SA is the most recognized form of the acetal homopolymer grades, and it offers a higher mechanical strength than acetal copolymer, but is known to have reduced density at center, and it is referred to as porous center line. This is especially true in thicker or large cross-sections. The Dupont Delrin® rods and sheeting materials are likewise somewhat less chemical resistance compared to copolymer acetal rod and plate. For instance, Delrin® is ideal for small and thin walled bushings and molded parts, and can provide excellent toughness and rigidity, typical of homopolymer acetal. Dupont Delrin® is produced and stocked in natural and black colors. The most common version of  the Dupont Delrin is the Delrin 150SA Sheet and Rod material, extruded from this Dupont resin.

Various other advantages over copolymer acetal are:Dupont Delrin and Copolymer Acetal Rods

Acetal Copolymer has a greater consistency or tolerance control, with a higher flexural modulus at higher temperature and raised temperature applications. It has a slightly higher tensile and a higher wear resistance at room temperature levels and also better wear at lower temperatures. The Copolymer Acetal is a bit harder,  and thus gives the homopolymer Acetal a reduced coefficient of friction.

A great choice for many demanding applications, Dupont Delrin® 150SA round rod and sheeting can be compared favorably to the acetal copolymer. And is some applications these two Acetal materials could be exchanged without loss of performance due to the fact that most physical properties are within approximately 8 % of each other. Perhaps the most notable difference between the Dupont Delrin® rod and copolymer acetal rod is the soft center of Delrin, commonly known as centerline porosity, which is an unfortunate issue with the Homopolymer Delrin®. This centerline problem is most obvious in a thick plate, and at the center of large diameter Delrin rod stock. Visually the Delrin centerline is clearly obvious around the center section of a rod, which extends through the entire rod length. In the Dupont Delrin sheeting material, the porous center is visible in a line along the center of the thickness, and along the full edge of a sheet. In most cases, the sheeting might even look laminated or glued together. In some cases the excessive porosity at centerline is unwanted for the following factors:

  • Can compromise the mechanical and engineering integrity
  • Aesthetically – inconsistent color in look on a finished part
  • Can present a path for leakage of water, gas and liquids
  • Can provide areas where microorganisms can grow in food handling applications

The reason for this center line issue is actually a normal outgassing of the Delrin resin during manufacturing. As the material proceeds through the extrusion process, the exterior of the sheet cools prior to the inside, trapping any outgassing from the resin. As the interior material cools, there is an equivalent reduction of volume. Because of the volume change of the form is restricted as a result of the solidified skin, gaps form to make up for the loss of interior volume. In most applications, the Dupont Delrin Sheet and Rod works well, even when factoring in the center line issue.

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