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SPEE3D develops ultra-corrosion-resistant alloy
-- a game-changer for maritime additive manufacturing

Australian manufacturer SPEE3D has developed two grades of an ultra-corrosion-resistant Nickel Aluminum Bronze alloy that are compatible with its Cold Spray Additive Manufacturing technology. The powder material is a game-changer for maritime OEMs and the U.S. Navy, as it will help with supply chain delays and keep critical maritime systems operational.
Read the full article.

Achieve higher loads with a round wire Wave Spring

Wavo Springs are produced from round-section wire to provide higher loads while maintaining the accurate loading found in wave springs. As an alternative to Belleville Springs, the Wavo provides similar loads but with an accurate, predictable spring rate. Available in carbon and stainless steel from stock, sizes range from 1/2" to 6" diameters. Free samples are also available!
Learn more.

Conveying and guiding: One-stop shop for components

JW Winco has expanded its range of conveying and guiding components with additional practical elements designed for common industrial applications, providing everything needed -- from guides and rails to brackets and feet -- for constructing unmotorized conveyor lines using standard parts.
Read the full article.

Why hybrid bearings are becoming the new industry standard

A combination of steel outer and inner rings with ceramic balls or rollers is giving hybrid bearings unique properties, making them suitable for use in a wide range of modern applications. SKF hybrid bearings make use of silicon nitride (twice as hard as bearing steel) rolling elements and are available as ball bearings, cylindrical roller bearings, and in custom designs. From electric erosion prevention to friction reduction and extended maintenance intervals, learn all about next-gen hybrid bearings.
Read the SKF technical article.

What are carbon composite bellows springs?

The Carbon Composite Bellows Spring (CCBS) from MW Components is a system of carbon fiber elements that combine to work as a high-performance, lightweight, and design-flexible compression spring meant to replace coil springs or metallic Belleville disc springs. A functional spring is made from several individual elements paired and joined to make a stack. The stack spring rate is determined by the number of elements, the base rate of each element, and their series or parallel orientation in the stack. Applications include motorsports, aerospace, and high-performance activities.
Learn more.

Bellows couplings for robotics

Ruland bellows couplings are ideal for precision motion in robotic applications due to their zero-backlash design, high torque and torsional stiffness, and various styles that ensure accurate movement and smooth operation. These lightweight couplings are commonly used in industrial, medical, and autonomous robotic systems requiring high speed and accuracy. They have reduced vibrations at speeds up to 10,000 rpm and can accommodate all forms of misalignment, making them highly versatile for different applications.
Learn more.

Structural adhesive bonding 101

Learn how LORD structural adhesives are eliminating rivets, welds, and mechanical fasteners to enable lower-cost assembly. Listen to Angela Zambanini as she describes Parker LORD's acrylic, epoxy, and urethane adhesives and the best applications for each adhesive category.
View the video.

World first: Industrial 3D printer makes metal or advanced composite parts

Markforged Holding Corporation has unveiled the FX10 Metal Kit, a print engine that brings metal-printing capability to the FX10 machine system. With this kit, the FX10 becomes the world's first industrial 3D printer that can be switched to print with metal filaments or composites.
Read the full article.

World's first current-carrying fastening technology

PEM^® eConnect™ current-carrying pins from Penn-Engineering provide superior electrical connections in applications that demand high performance from internal components, such as automotive electronics. This first-to-market tech provides repeatable, consistent electrical joints and superior installation unmatched by traditional fastening methods. Features include quick and secure automated installation, no hot spots or poor conductivity, and captivation options that include self-clinching and broaching styles.
Learn more about eConnect pins.

Retaining magnets from JW Winco: Universal and clever

JW Winco has expanded its magnet line to support more applications with new materials, shapes, systems, and even raw magnets. Learn about their latest offerings, including retaining magnets designed for corrosive environments (GN 50.8), encapsulated magnets designed for sensitive or painted surfaces (GN 51.8), handle magnets (GN 53.3), and powerful magnets designed to handle challenging environs (GN 52.6).
Learn more.

New polymer bearings are PFAS- and PTFE-free

igus has developed a new polymer bearing material called iglide JPF that is free of both per- and polyfluoroalkyl substances (PFAS) and polytetrafluoroethylene (PTFE). This innovation marks an important step in the company's efforts to create sustainable alternatives to conventional plain bearings. JPF is a dry-running, wear-resistant polymer that offers comparable friction and wear performance to iglide J. It delivers high wear resistance and durability.
Learn more.

New high-speed PSLA 270 printer from 3D Systems

The all-new PSLA 270 projector-based polymer 3D-printing platform and associated new materials from 3D Systems enable faster production times for a wide range of applications. This machine's high throughput and accuracy make it ideal for industries like healthcare, aerospace, automotive, and manufacturing, where precise and durable components are critical. Complementary Wash and Cure systems streamline post-processing and ensure high-quality finished parts.
Learn more including materials and build sizes.

New slim and ergonomic compression latch

Southco has launched the E3 Compact MIM compression latch, bringing new ergonomic and safety features to its durable family of latches in a low-profile package. The E3 Compact MIM compression latch is metal injection molded and has a shorter head (4 mm vs. the normal 6.4 mm), 180-degree ergonomic actuation, and visual indicators machined into the latch and color coded to easily show when it is open or closed. Features a sleek, low-profile, polished look.
Learn more.

Optimizing seal selection: From O-rings to press-in-place

What is the right seal for my application? The Sealing & Shielding Team at Parker Hannifin is looking to help you out in this blog. Learn some basics and possible modifications, including application and manufacturing considerations, gland options, mating hardware, and more. They are always very helpful over there at Parker.
Read the Parker blog.

Adjustable Spot Cooler provides precise industrial cooling

EXAIR's Adjustable Spot Cooler System offers a low-cost, reliable, and maintenance-free solution for industrial spot cooling needs. This tool offers precision control, versatility, and ease of use for a variety of applications including milling, machining, soldering, gas sampling, welding, and more. Utilizing cool and clean compressed air, the Spot Cooler allows users to precisely adjust temperatures from as low as -30°F (-34°C) to room temperature with the simple turn of a knob.
Learn more.

Is your metal too 'gummy' to cut? Draw on it with a Sharpie or glue stick

Your everyday permanent markers, glue sticks, and packing tape may offer a surprisingly low-tech solution to a long-standing nuisance in the manufacturing industry: Making soft and ductile, or so-called "gummy" metals, easier to cut.

What makes inks and adhesives effective isn't their chemical content, but their stickiness to the surface of any gummy metal such as nickel, aluminum, stainless steels, or copper. Such was the finding of researchers at Purdue University and the University of West Florida in a study recently published in Physical Review Applied.

These adhesives help achieve a smoother, cleaner, and faster cut than current machining processes, impacting applications ranging from the manufacturing of orthopedic implants and surgical instruments to aerospace components.

"A wide range of products rely on the machining of gummy metals. These could be something we use every day, such as the valve in a sink faucet, or something more critical like a compressor part in the jet engine of an airplane," said James Mann, assistant professor of mechanical engineering at the University of West Florida and Purdue alumnus.

If a significant improvement can be made to the "machinability" of gummy metals or alloys -- which is how well they cut, drill, or grind -- then there is potential to lower the cost of products, improve their performance, or enable new and improved designs.

"Gummy metals characteristically deform in a very wiggly manner," said Srinivasan Chandrasekar, Purdue professor of industrial engineering. "This wiggly flow involves significant energy consumption, which means that these metals require more force to machine than even some hard metals. We needed to find a way to suppress this wiggly flow."

Getting rid of the wiggles means that the metal now tends to act more like a brittle ceramic or glass in the spot where it needs to be cut.

Purdue researchers have discovered a simple solution for cutting soft gummy metals (left) just as cleanly and easily as hard metals (right). [Credit: Purdue University image/Anirudh Udupa]

 

 

 

 

One well-known way to make the gummy metal brittle is by coating it with a suitable liquid metal, such as gallium in the case of aluminum. Liquid metals like these, however, tend to work too well; diffusing through the surface and causing the whole metal to crumble into a powder.

"This makes the metal being machined unusable," Chandrasekar said.

Other attempts met with limited success tended to be either toxic or result in tears and cracks on the machined surface. The researchers then began to explore other benign chemical media that would cut cleaner.

Marking with ink or attaching any adhesive on the metal's surface dramatically reduced the force of cutting without the whole metal falling apart, leaving a clean cut in seconds. The quality of the machined surface also greatly improved.

Stickiness didn't initially stand out as a solution that permanent markers, glue sticks, and tape have in common.

"We looked at the chemical ingredients of the permanent ink, isolated each of those on the metal's surface, and there was no noticeable effect," said Anirudh Udupa, lead author on the study and a postdoctoral researcher in Purdue's School of Industrial Engineering. "So we realized that it's not a particular chemical but the ink itself sticking to the metal through a physical adsorption mechanism."

The Sharpie and adhesives also appeared to work on many gummy metals, regardless of the cutting tool.

"In hindsight, we can tell you why certain things weren't successful in previous work. It all comes back to the existence of this wiggly flow," said Koushik Viswanathan, Purdue postdoctoral researcher in industrial engineering. "Some people might have been trying to cut copper, for example, that was in the hard state rather than in the soft state."

To the researchers' knowledge, using permanent markers, glues, or tape to make gummy metals easier to machine does not pose any environmental hazards.

Next, Chandrasekar's group will be assessing the degree of stickiness that works best for cutting gummy metals and exploring ways to advance the application of this technology into industrial practice.

This research is supported by the U.S. Army Research Office, the National Science Foundation, and the U.S. Department of Energy.

Source: Purdue University

Published August 2018

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