March 14, 2023 Volume 19 Issue 10

Mechanical News & Products

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Siemens Meet at the Machine: Be productive from day one of new CNC machine delivery

Traditionally, many programming, validation, and training activities begin only after a machine is installed. Not anymore. Meet at the Machine is Siemens' new initiative uniting machine builders, software, and automation for next-level CNC through a continuous digital thread across engineering, programming, virtual validation, and execution. By pairing a Digital Twin with Digital CNC powered by SINUMERIK, manufacturers can prepare, validate, train, and optimize workflows before your specialized machine's physical delivery! TRAK Machine Tools is the launch partner -- see what they are doing.
Learn more.


How to master metal powder management in 3D printing

What's the real cost of "good enough" powder tracking for powder-bed fusion 3D-printing machines? According to Tim Wischeropp, CEO and Co-Founder of amsight, the technology is rife with hidden costs. Every cycle, every handling step, every exposure, and every mixing decision plays a part. Surprisingly, though, with the right strategy, users can turn their losses into a competitive edge. Learn how.
Read the full article.


Aluminum oxide filament for FDM printers

Virtual Foundry, the company that brought us 3D-printable lunar regolith simulant, has a new product called Aluminum Oxide Filamet™, giving users the power to print alumina parts using the FDM printers they already own. This composite 3D-printing material allows researchers, engineers, and makers to bypass expensive ceramic tooling and produce pure ceramic components in-house. Print using a 0.6-mm hardened-steel, standard-flow nozzle on virtually any open-architecture printer.
Get all the material specs.


New metal extrusion retrofit system helps manufacturers get into ShAPE

A new invention from the Department of Energy's Pacific Northwest National Laboratory could soon help manufacturers more easily adopt the lab's patented Shear Assisted Processing and Extrusion (ShAPE™) technology, enabling faster manufacturing of superior extrusion products while reducing costs and energy use.
Read the full article.


Pneumatics: Dual guide rod cylinders and exhaust silencers

Automation-Direct has expanded its guided actuator lineup with compact 12-mm dual guide rod cylinders from Metal Work. Ideal for packaging and material handling, these double-acting cylinders feature 10-mm to 250-mm strokes, magnetic pistons, and integral sensor slots. Additionally, new durable acetal plastic silencers are now available in multiple NPT/BSPP sizes to reduce pneumatic exhaust noise.
Learn more.


Expanded injection molding capabilities

Pexco LLC has acquired Recto Molded Products and Legacy Extrusions, expanding its capabilities in complex injection molding, tooling, assembly, and engineered thermoplastic solutions for OEM manufacturers. The Cincinnati-based companies bring more than a century of manufacturing expertise, advanced production technologies, and value-added services that strengthen Pexco's ability to support customers from product design through full-scale production. Injection molding presses ranging from 55 to 500 tons.
Learn about Pexco and its value-added manufacturing services.


Custom 3D-printed steering wheel for jet dragster

Jet dragsters use General Electric J85 engines -- the same turbines pulled from U.S. military F5 Freedom Fighters -- mounted to a custom 26-ft chassis. The racers achieve quarter-miles in 5.5 sec, but standard metal parts can fail custom ergonomic needs. Traditional manufacturing of low-volume aluminum steering wheels demands long, 8-day lead times, high costs, and multi-piece assemblies. Larsen Motorsports solved this by replacing metal with continuous fiber 3D printing using the Markforged X7. Embedding continuous carbon fiber into an Onyx nylon matrix allowed them to target specific load paths, delivering a custom steering wheel that is stiffer, lighter, and faster to produce than aluminum.
View the video.


Application Spotlight: Light-duty ring in an air vent nozzle

Explore how a light-duty Spirolox® retaining ring is used in an airplane air vent nozzle to regulate airflow. This application spotlight shows how the ring fits into a groove in the plastic housing, securing the nozzle during rotation. Designed for light loads and axial positioning, it offers a simple, economical solution that is easy to install and remove.
View this informative Smalley video.


Fasteners for automotive and agricultural equipment

Norm Fasteners has acquired an automotive fastener manufacturing plant in Plymouth, MI, expanding its North American footprint beyond sales, engineering, and logistics. The local facility produces metric fasteners (M4-M24) and engine bolts. Norm’s portfolio includes wheel bolts, studs, custom fasteners, and licensed MAThread® and TAPTITE® products, serving diverse automotive and industrial assembly needs.
Learn more or contact Belgin Tunce for more information.


3M Cooling Film for vehicle roofs launched

New 3M Cooling Film is a roof-applied heat-management solution designed to help keep vehicle cabins cooler, reduce cooling demand, and improve operational efficiency. The aftermarket product uses advanced thermal management technology to reflect more than 85% of solar radiation. Interior vehicle temperatures can be reduced by up to 10 degrees F with this product. Installs like graphics by professional installers using 3M adhesive technologies. Initially designed for fleet and rail operators.
Learn more.


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.


Gases separated and stored in powder could make them safer -- including hydrogen

Researchers at Deakin University in Australia have made a breakthrough that could help address one of the biggest barriers preventing the widespread adoption of hydrogen energy: safe storage and transport.

Hydrogen is increasingly being touted as one sustainable solution to Australia's gas crisis. However, finding a material that can store enormous quantities of gases for practical application remains a major challenge.

That's where the recent Deakin discovery could offer an answer. The new process, first described by nanotechnology researchers from Deakin's Institute for Frontier Materials (IFM) in the journal Materials Today, offers a novel way to separate, store, and transport huge amounts of gas safely -- with no waste.

"Right now, Australia is experiencing an unprecedented gas crisis and needs an urgent solution," said Alfred Deakin Professor Ying (Ian) Chen, IFM's Chair of Nanotechnology. "More efficient use of cleaner gaseous fuels such as hydrogen is an alternative approach to reduce carbon emissions and slow global warming."

Traditional oil refinery methods use a high-energy "cryogenic distillation" process to separate crude oil into the different gases used by consumers, such as petrol or household gas. This process makes up a whopping 15% of the world's energy use.

What the IFM research outlines is a completely different mechanochemical way of separating and storing gases, which uses a tiny fraction of the energy and creates zero waste.

The breakthrough is so significant, and such a departure from accepted wisdom on gas separation and storage, that lead researcher Dr. Srikanth Mateti said he had to repeat his experiment 20 to 30 times before he could truly believe it himself.

"We were so surprised to see this happen, but each time we kept getting the exact same result, it was a eureka moment," Mateti said.

The special ingredient in the process is boron nitride powder, which is great for absorbing substances because it is so small yet has a large amount of surface area for absorption.

"The boron nitride powder can be re-used multiple times to carry out the same gas separation and storage process again and again," Mateti said. "There is no waste, the process requires no harsh chemicals, and creates no by-products. Boron nitride itself is classified as a level-0 chemical, something that is deemed perfectly safe to have in your house. This means you could store hydrogen anywhere and use it whenever it's needed."

During the process, the boron nitride powder is placed into a ball mill (a type of grinder containing small stainless steel balls in a chamber) along with the gases that need to be separated. As the chamber rotates at a higher and higher speed, the collision of the balls with the powder and the wall of the chamber triggers a special mechanochemical reaction resulting in gas being absorbed into the powder.

[Image Credit: Deakin University]

 

 

One type of gas is always absorbed into the powdered material quicker, separating it out from the others and allowing it to be easily removed from the mill. This process can be repeated over several stages to separate the gases one by one.

The ball-milling gas absorption process consumes 76.8 KJ/s to store and separate 1,000 L of gases. This at least 90% less energy than the energy used in the petroleum industry's current separation process.

Once absorbed into this material, the gas can be transported safely and easily. Then, when the gas is needed, the powder can be simply heated in a vacuum to release the gas unchanged.

The breakthrough is the culmination of three decades of work led by Professor Chen and his team and could help create solid-state storage technologies for a range of gases, including hydrogen.

"The current way of storing hydrogen is in a high-pressure tank, or by cooling the gas down to a liquid form. Both require large amounts of energy, as well as dangerous processes and chemicals," Chen said. "We show there's mechanochemical alternative, using ball milling to store gas in the nanomaterial at room temperature. It doesn't require high pressure or low temperatures, so it would offer a much cheaper and safer way to develop things like hydrogen-powered vehicles."

With their current research, the IFM team has been able to test their process on a small scale, separating about two to three liters of material. They hope, with industry support, it can be scaled up to a full pilot, and they have submitted a provisional patent application for their process.

"We need to further validate this method with industry to develop a practical application," Chen said. "To move this from the laboratory to a larger industry scale, we need to verify that this process is cost saving, more efficient, and quicker than traditional methods of gas separation and storage."

Source: Deakin University

Published March 2023

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