September 24, 2024 Volume 20 Issue 36

Mechanical News & Products

Designfax weekly eMagazine

Subscribe Today!
image of Designfax newsletter

Archives

View Archives

Partners

Manufacturing Center
Product Spotlight

Modern Applications News
Metalworking Ideas For
Today's Job Shops

Tooling and Production
Strategies for large
metalworking plants

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.


U. Michigan says auto plants grew their workforces after transitioning to EV production

Data suggests the switch to EVs may not mean the loss of assembly jobs that some predicted.

By Jim Lynch, University of Michigan

U.S. auto plants producing battery electric vehicles have required a larger workforce than traditional internal combustion engine plants -- a finding that runs counter to early predictions about how EVs would impact the industry.

Researchers at the University of Michigan (U-M) have shown that plants in the ramp-up stages of transitioning to full-scale EV production saw that 10 times more workers are needed to assemble every vehicle. And at one plant studied, now with over a decade of EV production, the total number of workers needed to make each vehicle has remained three times higher.

"There is a shortage of information out there about how the transition is shaping up," said Anna Stefanopoulou, the William Clay Ford Professor of Technology and senior author of the study published in Nature Communications. "What we're seeing, with the data that's available, is that the loss of employment predicted for EVs is not happening."

Workers at a Ford plant in Dearborn, MI, work beneath the body of a fully electric Ford F-150 Lightning in 2022. [Credit: Photo by Brenda Ahearn, Michigan Engineering/Courtesy of University of Michigan]

 

 

 

 

Previous estimates of what EV manufacturing would mean for autoworkers depicted a 30 to 40% reduction -- a loss of 200,000 jobs or more. Much of that stems from the basic difference between electric and gas-powered cars.

EVs require roughly 100 fewer parts than their ICE counterparts, and their powertrain designs are far simpler. Transmissions, exhaust, and cooling systems are not part of the EV equation, so the expectation has been assembly jobs would be lost. But the findings show the opposite.

U-M's research team offered several factors likely contributing to higher numbers of assembly workers at EV plants, including:

  • Investment in the development of new manufacturing technologies, which often requires more labor to improve.
  • Higher vehicle complexity. Companies beginning to manufacture EVs usually start out making premium vehicles with the most advanced features and technologies.
  • Some manufacturers have consolidated workers in a single, central location to lower costs from outsourcing, a practice known as vertical integration.

The 30% job loss number is often attributed to James Hackett, Ford's former president and CEO from a forecast in 2017.

"It's a number that has been repeated by a lot of big names in the auto industry," said Omar Ahmed, a U-M graduate student research assistant and a co-first author of the study. "But if you look closely, no one's really done the work to look at real plants that have transitioned from building ICE vehicles to building EVs."

U-M researchers identified three plants that have transitioned from building all ICEs at one time, to manufacturing all EVs. Those are Tesla's factory in Fremont, CA (previously owned by General Motors and Toyota), Rivian's factory in Normal, IL (previously operated by Mitsubishi), and the General Motors plant in Orion Township, MI (currently not operating). The team compiled two decades of data on the number of assembly workers at the three plants using public census data in the U.S., as well as production data from the Automotive News Research & Data Center

"Our work shows clearly that the number of assembly workers in the plants has increased in many cases," said Andrew Weng, a U-M research fellow in mechanical engineering and co-first author of the study. "However, the jury is still out in terms of parts manufacturing jobs, which will largely depend on where battery cell manufacturing takes place."

Tesla's Fremont plant offers the longest stretch of EV production to study. Gabriel Ehrlich, an associate research scientist and director of U-M's Research Seminar in Quantitative Economics, said there are lessons to be gleaned from that auto plant's data.

"The plant has been operating for ten years now, and they've obviously been able to improve labor efficiency," he said. "But the pace of improvement indicates that it can take up to 15 years for a plant to reach parity with its ICE predecessor.

"It's going to be a slow process, one that gives communities, companies, and workers time to adjust."

The study was partially funded by the National Science Foundation.

Published September 2024

Rate this article

[U. Michigan says auto plants grew their workforces after transitioning to EV production]

Very interesting, with information I can use
Interesting, with information I may use
Interesting, but not applicable to my operation
Not interesting or inaccurate

E-mail Address (required):

Comments:


Type the number:



Copyright © 2024 by Nelson Publishing, Inc. All rights reserved. Reproduction Prohibited.
View our terms of use and privacy policy