October 20, 2015 Volume 11 Issue 39

Mechanical News & Products

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Adhesives formulated in different colors

Master Bond epoxy systems are formulated in a variety of standard colors, including black, red, green, blue, gray etc. Many optically clear grades are also available. Upon request, compounds can be manufactured in custom colors in order to meet specific requirements. This task requires blending multiple RoHS-compliant pigments in precise proportions to ensure no color variation and uniform appearance. These colored adhesives can be formulated to meet industrial certifications such as medical grade, NASA low outgassing, ISO 10993-5 for cytotoxicity, and more. Compliance testing is performed by independent testing laboratories.
Click here to learn more.


New 3M tape tackles high-temp fastening applications

Since 1980, 3M VHB Tapes have opened the door to faster and easier assemblies. Now, the new GPH series from 3M combines the extreme, permanent bonding power and convenience of 3M VHB Tapes with high-temperature resistance. It can withstand operating temperatures up to 450 F, with long-term durability in conditions up to 300 F. Users will experience excellent adhesion to high and medium surface energy materials, as well as coated or painted surfaces. 3M VHB Tapes, including the new GPH series, replace traditional mechanical fasteners, subsequently eliminating processes like drilling, grinding, refinishing, screwing, welding, and associated rework/clean-up.
Click here to learn more.


Permanent threads in thin sheet applications -- with only one-sided access

ATLAS SpinTite blind threaded inserts from Penn-Engineering provide strong, permanent, and reusable threads in thin sheet materials where only one side is accessible for hardware installation. Installation is performed from the accessible "front" side using spin-spin tooling technology. The inserts then become permanently mounted on the "back" side to accept a mating screw for final component attachment. This "blind" installation capability especially suits applications such as tubing, extrusions, and others where access to the back side is either limited or nonexistent. These steel, aluminum, brass, or stainless steel inserts support close-to-edge applications and can be installed at any stage during the production process (even after assemblies have been painted).
Click here to learn more.


Heavy-duty air-powered conveyor resists wear and transports more

EXAIR's new 2-1/2-in. and 3-in. Heavy Duty Line Vacs are powerful in-line conveyors that transport high volumes of material through ordinary hose or tube -- at a rate that is typically twice that of ordinary air-powered conveyors. Designed for rugged, industrial applications, Heavy Duty Line Vacs have a hardened alloy construction that prevents premature wear when transporting abrasive or heavy materials like shot blast, tumbling media, or metal fittings. These units feature large throat diameters that make it possible to convey more material over longer vertical and horizontal lengths. Seven sizes available.
Learn more.


High-gain rubber-type coupling

In 2007, NBK took the lead in the industry with the launching of the High-Gain Rubber Coupling. With the XG-Series, you can increase the productivity and control of your Servo System with higher gain compared to when using traditional couplings. These High-Gain Rubber Couplings shorten manufacturing time through the reduction of vibration even in high-gain surroundings by an innovative molding technique within the internal structure of the couplings.
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Completely updated new full-line catalog of fasteners

Micro Plastics introduces its new 300-page catalog #41 containing thousands of fastening solutions for engineers and product designers. Find hundreds of new problem-solving products including Spacers, Washers, Clips, Clamps, Ties, Bushings, Screws, Nuts, Rivets, and Plugs. Micro Plastics specializes in Nylon threaded fasteners, but the company also offers extensive product lines for wire management and circuit board hardware. Samples are available upon request.
Check out the new online catalog.


Instant quoting for on-demand manufacturing

Xometry, a popular on-demand manufacturing platform, has released a new version of its Xometry Instant Quoting Engine. Key features include a redesigned summary view to help users quickly review their quotes, a part-level modification page that captures all changes in real time, and an always-visible 3D viewer with instant design feedback displayed directly on the model. Xometry provides instant quotes on CNC Machining, Sheet Metal Fabrication, 3D Printing, and Urethane Casting.
Check it out on the Xometry website.


Odorless thermal insulation material for automotive

Interface Performance Materials introduces TI650 and TI1K innovative thermal insulation materials for automotive and heavy-duty vehicle heat shield applications. TI650 and TI1K are the first odorless and smokeless materials specifically formulated for three-layer heat shields in the automotive, medium-, and heavy-duty vehicle applications. These non-toxic materials withstand temps up to 1,000 C (1,832 F), are malleable, and are resistant to cracking when molded into a layered heat shield. Their low-density makeup makes them the ideal substrates for lightweight initiatives by OEMs and fabricators. A highly inorganic material, TI1K is also unique in its ability to meet the ASTM E136 flammability test standard with no detectable smoke.
Learn more.


Custom-made wave springs

Smalley can manufacture custom Wave Springs quickly and economically to meet your specific application requirements. Because force and deflection requirements are application-specific, custom springs are often needed. With Smalley’s No-Tooling-Cost™ manufacturing process, customs can be produced from .157” to 120” diameters in carbon steel, stainless steel, or other readily available exotic alloys. Free samples are available of standard parts for testing. All Springs Are Not Equal®!
Learn more.


How mobile equipment manufacturers benefit from using formed thermoplastic hoses

The proper assembly, installation, and specifying of the right hoses and tubing for the application are critical to the trouble-free operation of mobile equipment employed in construction, forestry, mining, and similar industries. This latest blog from Parker examines how formed thermoplastic hoses address these challenges and details how a skid-steer manufacturer reduced labor time and realized significant cost savings.
Read the full article.


Inch-size mounting clamps with swivel ball joint

GN 784 mounting clamps with swivel ball joint from JW Winco allow precise and variable adjustment of the ball pivot within the rotation range. This is a particular advantage when adjusting scanners, cameras, lighting, monitors, etc. Thanks to the efficient clamping mechanism, only small amounts of torque on the clamping screw result in comparatively strong clamping pressure on the ball. This force is easily applied by the clamping lever.
Learn more.


Precision ceramic and glass microcomponents

Goodfellow, a favorite materials provider for Designfax readers, also supplies a wide variety of ceramic and glass microcomponents, both standard items and items precision-machined to customer specifications. Examples include: ultra-thin glass microsheet for use as transparent substrates and electrical insulators; precision spheres for use as precision spacers and optical components; micro optics such as prisms, lenses, and windows; injection-molded ceramic microcomponents for surgical equipment and fiber-optic applications; polished sapphire bearings and sub-mm bore nozzles; and single- and multi-bore capillary tubing. Other items are available upon request.
Learn more.


Cool Tools: Unit Conversion Tool

Convert popular spring units such as force or retaining ring thrust capacities into metric units with Smalley’s engineering tools. Convert units such as mass and weight, angular measurements, velocities, temperatures, pressures and densities, and more.
Click here to learn more. You should bookmark this one.


Smith Metal Products adds Titanium Metal Injection Molding capabilities

Smith Metal Products has added Titanium Metal Injection Molding (TiMIM) capabilities to its MIM portfolio of materials that include stainless steels, alloys, and ceramics. TiMIM involves mixing powdered Titanium metal with a binder material to compose a feedstock capable of being handled by injection molding equipment. Metal injection molding allows complex Titanium parts to be shaped with precision in a single operation and in high volume as compared to traditional Titanium machined metal components.
Learn more.


Linear miniature torque splines and nuts

Helix Miniature Torque Splines provide a convenient and efficient device that allows low-friction linear motion while transmitting torque. In a Helix PT Spline assembly, the high-strength composite polymer bushing carries the load between the rotating member (inner race) and the rotating/translating member (bushing). Helix PT Splines are coated with Helix H10X PTFE coating for long life and anti-friction. Available in three bushing styles: Cylinder Mount, Thread Mount, and Anti-Backlash.
Click here to learn more.


Microsoft sets Guinness World Record for Quietest Place on Earth with Eckel anechoic chamber

Microsoft now holds the Guinness World Record for Quietest Place on Earth, and Eckel Noise Control Technologies (Cambridge, MA) helped the tech giant get there.

Microsoft is known as a leader in computer and electronics R&D, and continually invests in upholding that reputation. So, when the company needed a new anechoic chamber for audio and device testing at its Redmond, WA, Audio Lab, the engineers aimed to create a truly state-of-the art acoustic environment. What they didn't realize was this: They were designing something truly unique -- the absolute quietest room on the planet.

Microsoft's new anechoic chamber has been dubbed "The Quietest Place on Earth."

 

 

In March 2014, Microsoft contracted with Eckel to design and build the chamber. Installation began at Building 87 in May 2014, under the direction of Eckel's installer, Viking Enterprises (Waterford, CT). Eckel completed the entire project in July 2014 (which also included constructing two smaller anechoic chambers). "We designed this and other super-quiet, acoustically controlled chambers to engineer and build best-in-class audio products at Microsoft. We use these facilities for designing products like the Surface, HoloLens, and Cortana, that we take great pride in it," says Hundraj Gopal, Ph.D., Microsoft Principal Human Factors Engineer.

Independent tests of the main chamber by professional sound specialists from Bruel & Kjaer confirmed that -- at -20.6 dB -- Microsoft and Eckel had shattered the previous world record for Quietest Place on Earth and far surpassed engineers' prediction of -16 dB. The previous record was -13 dB (held by an Eckel anechoic chamber at Orfield Laboratories in Minneapolis).

To provide some sound context, the theoretical noise produced by Brownian motion -- the random movement of particles in air -- is the quietest known sound outside the vacuum of space, and is measured at -23 dB. Calm breathing comes in at +10 dB; rustling leaves at +20; normal conversation at +60, and a jet plane takeoff at +150 (at 25 meters).

"This chamber gives us the opportunity to look for those really small signals that can have an impact to the end user," says LeSalle Munroe, Microsoft Senior Engineer, Surface Devices. "We always want to have the best tools available for the job. And that's what this is. It's a great accomplishment."

Anechoic chambers are echo-free environments with a sound absorption level of 99% to 100%. They are used for acoustic measurements in a wide variety of R&D applications. The record-setting chamber's walls, ceilings, and door are fitted with Eckel's sound-absorbing anechoic wedges. Anti-vibration mounts isolate the chamber from the rest of the building's foundation.

"We are absolutely thrilled with the results of our chamber for Microsoft," says Eckel Vice President Jeff Morse. "Not only did we fulfill the requirements they needed for their testing, but we were able to deliver a facility that set a new world record. We couldn't be more honored to have been part of this exciting project."

Source: Eckel Noise Control Technologies

Published October 2015

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