MD_Fastening and Joining Monthly

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June 20, 2011

Summer is in full swing. If you're hanging out in the air conditioning trying to keep cool, why not try our World's Smartest Design Engineer game? A new month starts soon with new questions and new prizes for top scorers, so sharpen your pencils and give it a whirl!

This month check out new Machine Design content on:

Advances in CMM
Inspection techniques for rods and seals
And free training on adhesives

Don't forget to scroll down for new products, news from Machine Design, and industry updates. And let us know your thoughts at machinedesign.com, on our discussion forums, or by email.

Best of luck,
Jessica Shapiro

Articles

A new spin on CMM
The zCAT, a direct computer-control coordinate-measuring machine (DCC CMM), from Prrrfect Technologies LLC, Carlsbad, Calif., is portable and weighs just 26 lb. Its repeatable accuracy is 8 microns, and it works mounted to a machine tool or standing alone. It uses 10 W from a 5-hr lithium-ion battery and connects to computers via WiFi.
Read the full article.

SPOTFAST® FASTENERS-permanent joining of
two sheets of metal (Bulletin SF)

The PEM® SPOTFAST® self-clinching fasteners create a permanent, flush joining of two sheets of metal. The fastener installs smooth with the top sheet, and flush or sub-flush with the bottom sheet. This fastener is capable of joining two dissimilar metals, including unequal thicknesses.

www.pemnet.com

Better surface, better sealing

Advanced seal materials and designs meet the challenge of sealing pressurized hydraulic fluid in while letting rods move in and out. But to ensure continuous, high-quality operation, hydraulics manufacturers need to be certain rod-surface quality falls in the perfect range - neither too rough or too smooth - as engineers at Simrit, Elgin, Ill., recently quantified.
Read the full article.

Webinar: How to quantifiably confirm cure of light-cure adhesives
How can medical-device OEMs easily verify the degree of cure of light-curing adhesives? Until recently, there was no way to be sure aside from destructive physical testing that took up valuable production time. Learn more about the basics of light cure acrylic technology, the pros and cons of current detection methods, and in-line degree-of-cure monitoring systems in an upcoming webinar from Machine Design and Henkel .
Get more information and register for the webinar.

New Products

Food-grade epoxy

EP42HT-2FG two-part, food-grade epoxy meets FDA CFR 175.300 and NSF/ANSI 51.4.1 (2009) requirements. The adhesive resists chemicals, many solvents, boiling water, steam, radiation, fats and oils, and temperatures from -60 to 450°F. It has volume resistivity over 10¹⁴ ohm-cm, tensile strength over 12,000 psi, and tensile lap-shear strength over 2,000 psi.

Part A is clear and has 55,000 to 110,000-cps viscosity. Part B is amber and has a room-temperature viscosity of 75 to 130 cps. The parts mix at 100:30, and open time for a 100-gm mass at room temperature is 45 to 75 min. Cure is 3 to 4 hr at 150 to 200°F or overnight at room temperature followed by a 2 to 3-hr cure at 150 to 200°F.

The epoxy comes in half-pint, pint, quart, gallon, and 5-gal containers. It has a shelf life of one year when stored unopened at room temperature.
Master Bond Inc.

Tab washers

Tab washers lock parts into place in applications requiring extreme heat conditions or heavy vibrations. The washers come in internal tab, external tab, internal/external tab, multiple internal/external tab, and locking tab designs.

Outside diameters range from 0.080 to 6.000 in., and multiple inside diameters and thicknesses are available. The washers come in 2,000 metallic and non-metallic materials including low-carbon sheet steel, spring steels, stainless steel, aluminum, brass, copper, nickel silver, ABS, acetal, polyester, nylon, nylon MD, polycarbonate, fiber, polyethylene, and NEMA-grade laminates.
Boker's, Inc.

Coating-adhesion promoter
AdPro Poly adhesion promoter helps Parylene coatings bond to many polymeric materials, including polyimides. The product enhances coating stability at elevated temperatures and in harsh environments and is biocompatible for the medical device applications.
Specialty Coating Systems

News from MD

New white papers from HP and Intel:

Realistic User Productivity Comparisons for Upgrade Decision Making

AutoCAD® users can appreciate the rock-solid dependable performance they demand from HP and Intel® processor-based workstations. The Intel® Core™ and Xeon® processor-based workstation portfolio includes a wide range of machines that fit multiple user segments, from entry, mobile, essential, and digital workbench users.

Return on Innovation: Making Individuals More Productive

The value proposition for equipping technical and creative professionals has drastically changed. The unprecedented combination of economic pressure and technological advancement has rewritten the rules of how to do more with less. Teams may forego new hires or do the same work with fewer staff, yet they can avail themselves to new tools and techniques. The challenge then becomes how to equip these valuable and fewer number of professionals to be more productive and innovative.

Click here to register and download

Machine Design's WORLD'S SMARTEST DESIGN ENGINEER
The 2nd season has begun! Players from across the globe are still competing for fun, education, prizes and the ultimate bragging rights. Thanks to our sponsors for their support of the exciting online opportunity for engineers! Play Now!

Altech Corp.
Bimba Manufacturing Co.
Deublin
Maxon Motors
Northwire
R+W America
Simrit
Smalley Steel Ring

Also, please download our first World's Smartest Design Engineer Study Guide, provided by Maxon Precision Motors, Inc. Brush up on motion control basics and learn more to help you excel at the game.

How to Quantifiably Confirm Cure of Light Cure Adhesives
Sponsored by: Henkel
Date: June 23, 2011
Time: 2:00pm ET/11:00am PT

A major challenge for OEM’s, especially medical device manufacturers using light cure adhesives, is the ability to easily verify an adhesive’s degree of cure, and thus, speed production processes while improving overall quality. Even the most conscientious manufacturer can experience incomplete cure if an inappropriate or degraded light source generates insufficient irradiance to complete cure, or if rapid processing speeds result in insufficient light exposure. While the adhesive may appear solidified, without time consuming offline verification methods involving destructive physical testing or lab analysis, manufacturers have had no method to quickly and conclusively confirm the degree of cure. It is important to have a simple in-line process that can decrease the resources dedicated to cure verification and that can improve overall quality and production rates for manufacturers. Manufacturers require technology that is ideally suited for assembly processes where high quality and low risk of field failure is desired. It is also essential for medical device manufacturers to use adhesives that meet strict ISO-10993 biocompatibility requirements.

Register today!

ARCHIVED WEBCASTS AVAILABLE FOR FREE VIEWING
Click Here for a list of archived Machine Design webcasts.

Industry Update

Fabrico debuts harsh-environment-adhesive video

Fabrico, Kennesaw, Ga., announced a new website video highlighting the use of adhesives in harsh environments. Compared to mechanical fastening and thermal joining, engineered liquid adhesives, pressure-sensitive foam tapes, and adhesive transfer tapes have significant advantages for harsh environment applications.
View the video or visit Fabrico for more information.

Las Vegas Fastener Expo updates
Show management reports 4% more exhibit space has been sold for the National Industrial Fastener & Mill Supply Expo, October 19-21, Sands Expo & Convention Center, Las Vegas, compared to the same time last year. A total of 632 booths have so far been sold to 471 companies. Management anticipates the expo will have over 700 booths.

The all-day conference program begins on Wednesday, Oct. 19th, and the two day Expo runs Oct. 20-21. The expo will feature the largest display of fastener-making machinery and tooling in North America, according to Susan A. Hurley, CEM, General Manager.
For more information, visit the expo website.