June 14, 2022 Volume 18 Issue 22

Mechanical News & Products

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Test your knowledge: High-temp adhesives

Put your knowledge to the test by trying to answer these key questions on how to choose the right high-temperature-resistant adhesive. The technical experts from Master Bond cover critical information necessary for the selection process, including questions on glass transition temperature and service temperature range. Some of the answers may surprise even the savviest of engineers.
Take the quiz.


New Air Holster Safety Air Gun Mount

EXAIR's new Model 5930 Air Holster provides a simple and convenient way to keep Safety Air Guns secure and within easy reach at workstations throughout a facility. Designed to give operators a designated location for their air gun when not in use, the Air Holster helps prevent misplaced tools while keeping work areas organized and efficient. Its practical design makes it an ideal addition to manufacturing, assembly, maintenance, and other industrial workstations where Safety Air Guns are frequently used.
Learn more.


Southco access hardware in rail applications

Discover how Southco's rail access hardware solutions help improve safety, reliability, and operational efficiency across modern rail networks. The video showcases a range of rail applications where Southco's access hardware plays a critical role, including driver cabins, lighting systems, tray tables, headrests, armrests, and other passenger and operator touchpoints. Designed to support dependable performance in demanding moving environments, Southco's solutions help operators streamline maintenance processes, minimize downtime, and enable more proactive asset management.
View the video.


Multi-zone tension leveler for hard-to-flatten alloys

Redex USA's Levelflex® is a modular, multi-zone tension leveler engineered for continuous processing lines, including coating and heat treatment of aluminum alloys and where flatness is critical to coating adhesion and downstream formability. By stretching material within 95% of its yield strength, it corrects stubborn flatness defects in fewer passes. It comes in open-loop pure stretch or closed-loop tension measurement modes to optimize surface integrity and eliminate crossbow.
Learn more.


Hold any shape with ID and OD Form Holding Clamps

These simple OD and ID clamping solutions from Fixtureworks clamp onto your part in one easy operation, eliminating the need for custom fixtures. They allow users to clamp onto the inner or outer diameter of small-size, irregularly shaped work parts fast. Lots of options.
Learn more.


Need inserts? We make it E-Z.

Founded in 1956, E-Z LOK allows users to repair damaged or worn-out threads without the need for special taps or installation tools. Our line of threaded locking inserts is used in metal, plastic, wood, composite, and additive industries. Extensive inventories are maintained in four warehouses across the U.S., and all products are sold through industrial distributors. One source for all your needs!
Learn more
or contact Kyle Lindsly-Roach for free samples at 310.323.5613 x221.


Stop paying the 'assembly tax': Why your next design should be one part not 10

"As metal additive manufacturing (AM) moves from the prototyping lab to mainline production, the most significant ROI isn't found in making parts faster, it's found in making fewer of them." So says Erica Manzella of Go Engineer. Learn about the hidden costs of traditional assembly, the DfAM toolset native to SOLIDWORKS, and the advanced 3DEXPERIENCE optimization tools and industrial metal AM hardware that are making monolithic design a physical reality.
Read the GoEngineer blog.


Best-seller: Copper filament for 3D printing

Virtual Foundry, the company that brought us 3D-printable lunar regolith simulant, says Copper Filamet™ (not a typo) is its best-selling metal filament. This material is compatible with any open-architecture FDM/FFF 3D printer. After sintering, final parts are 100% pure copper. The company says this is one of the easiest materials to print and sinter. Stainless steel, porcelain, aluminum, and titanium available too.
Learn more and get all the specs.


What can replace a coil spring? You've got better options!

Traditional coil springs can limit mechanical designs. Wave springs offer a space-saving alternative, providing equivalent force and deflection in up to half the operating height while reducing assembly size and weight. There are four wave spring types that can replace a coil spring. Learn how each variant delivers unique performance capabilities to optimize space, efficiency, and reliability.
Read this informative NEW Smalley technical article.


Next-gen metal bonding: 3M Scotch-Weld 8500 Series

Replace traditional fasteners and streamline assembly with 3M Scotch-Weld Acrylic Adhesive DP8507NS. Engineered for direct bonding to bare or slightly oily metals with minimal surface prep, this high-performance adhesive withstands paint bake cycles up to 200 C (392 F), resists corrosion, and holds strong down to -40 C. Upgrade durability, aesthetics, and design flexibility. Bonds many plastics too!
View the video.


3 things you need to get right when 3D printing gears

When businesses decide to 3D print their own gears, they can reduce lead times and costs associated with replacements, prototypes, and small-batch production runs significantly. According to the experts at igus, however, "achieving industrial-grade reliability requires more than just a digital file; there are several fundamental technical basics you must master first to ensure your gears can withstand the rigors of real-world use."
Read this informative igus tech tip.


DURACON polymer with 30% recycled content

Daicel Corporation's High Performance Polymers SBU has launched four new DURACON® POM grades featuring 30% post-consumer recycled (PCR) content. Unveiled at CHINAPLAS 2026, the lineup includes Standard, Low VOC, Sliding, and Tough options. Leveraging advanced compounding expertise, Daicel maintains quality and mechanical performance comparable to standard virgin resin grades for demanding global industrial and automotive components.
Learn more.


Renishaw unveils revolutionary LIBERTAS™ 3DP tech

Renishaw's new LIBERTAS software technology addresses two of the most persistent challenges in metal AM: poor downskin surface finish and the need for support structures. Users have greater freedom to manufacture complex geometries.
Read the full article.


Innovate like a PRO: Protolabs' new AI-enabled manufacturing platform

ProDesk by Protolabs accelerates innovation for product development and procurement teams. It features real-time, AI-powered quoting with design for manufacturability (DFM) analysis across injection molding, CNC machining, and 3D printing. The platform enables seamless team collaboration and customizes quotes with instant feedback on materials, lead times, secondary operations, and finishes prior to production.
Learn more.


SDP/SI Shaftloc Fastening System

Shaftloc is a unique, reusable locking device for securely mounting mechanical components like gears and sprockets onto shafts without the need for keyways, set screws, or adhesives. Its simple, two-piece design offers a cost-effective alternative to traditional fasteners, providing high clamping force and vibration resistance. Installed with standard tools, Shaftloc is perfect for designers seeking flexible, hubless mounting solutions. Available in four styles.
Learn more from SDP/SI.


Ordinary silicone wristbands track firefighters' exposures to harmful chemicals

New Duke University research shows that silicone wristbands can be used to track firefighters' exposures to 134 dangerous chemicals, including PFAS. [Photo credit: Durham, NC, Fire Department]

 

 

Firefighters have a 9% higher risk of being diagnosed with cancer and a 14% higher risk of dying from the disease than the general adult U.S. population, according to studies by the National Institute of Occupational Safety and Health and other agencies.

Recent research by scientists at Duke University could give doctors and public health officials a new tool for tracking firefighters' exposures to cancer-causing chemicals and determining where and when the risks might be greatest.

The cool thing is, it's not some expensive high-tech gadget. It's just a silicone wristband, purchased in bulk for about $1 apiece.

"It turns out that ordinary silicone wristbands, like the ones sold in stores, absorb the semi-volatile organic compounds you're exposed to while you're out in the world," said Jessica Levasseur, a PhD student at Duke's Nicholas School of the Environment, who led the study.

"It's like taking fingerprints of everywhere you've been and everything you've been exposed to," Levasseur said.

The decision to use the bands to track firefighters' risks came about when the Durham Fire Department (DFD) approached Duke researchers for help in identifying exposure risks its firefighters faced.

"Firefighters have high cancer rates compared to the general population, but we don't know why," Levasseur said." Is it caused by exposure to one chemical or a mix of them? Is it something they breathe in while working in fires or being near them? Or something else? There are lots of risk factors and potential routes of exposure, and we wanted to see if silicone wristbands could be a practical tool for disentangling them."

Working with other researchers at the Nicholas School and the Duke Cancer Institute, Levasseur asked 20 firefighters from DFD to wear the wristbands while working a typical six-day shift, and then to get each firefighter's baseline exposures while off duty.

Each wristband was analyzed for 134 different chemical compounds, including phthalates, brominated flame retardants, organophosphate esters, polycyclic aromatic hydrocarbons (PAH), and per- and polyfluoroalkyl substances (PFAS), all of which have been linked to increased incidence of certain cancers.

"Seventy-one of these chemicals -- including seven PFAS, which to our knowledge have never previously been detected using wristbands -- were found in at least half of the bands," Levasseur said.

Levels of PAH, brominated flame retardants, and organophosphate esters were 0.5 to 8.5 times higher in the wristbands worn while on duty than in those worn while off duty. This suggests that just being a firefighter means you are exposed to more of these compounds than the average adult, regardless of whether you respond to a fire while working.

Bands worn by firefighters on days they actively fought a fire also contained 2.5 times more PFOS -- a type of PFAS -- than the bands of firefighters who were not called to a fire. This suggests that exposure to these contaminants is strongly associated with active firefighting, Levasseur said.

In contrast, wristbands worn on off-duty days contained higher levels of phthalates and pesticides.

"This research is the first to demonstrate that silicone wristbands can be used to quantify occupational exposure in firefighters and distinguish exposures that may be related to fire events versus other sources," Levasseur said. "Conducting follow-up research with a larger population will help pinpoint the exposure sources that contribute to firefighters' risk for cancer and assess exposure risks that may be related to chemicals off-gassing from their gear or materials in their firehouse, which we did not examine," she said.

She and her colleagues published their peer-reviewed findings April 26 in the journal Science of the Total Environment.

Source: Duke University

Published June 2022

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