ASME TechCast

Mechanical Engineering magazine
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Oct 8, 2025 • 40min

A New Generation of Rebar

If you see a concrete structure of any kind, be it a building, road, or maybe piece of art, in all likelihood it’s supported by rebar. While there are a few varieties of steel rebar, from the standard steel to epoxy coated, they all suffer from corrosion issues.  Two doctoral graduates from MIT launched a startup called Allium Engineering a few years ago that’s taking aim at that issue by manufacturing steel that's able to resist corrosion through an innovative stainless steel cladding process. The company says this technology can more than triple the lifetime of key infrastructure such as bridges, which would allow for significant cuts to steel and concrete production, two of the largest carbon dioxide emitting industries. To share more about Allium, how the company got started and the technology behind it, Allium’s co-founder and CTO Sam McAlpine stopped by for a chat with ASME TechCast.
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Sep 22, 2025 • 15min

Setbacks are Part of the Engineering Process

Multiple setbacks haven’t stopped engineering student Michelle Delk from embracing opportunity and pursuing a graduate degree.
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Sep 8, 2025 • 43min

Engineering and Design Justice

When it comes to engineering and design, no matter the end goal, be it a device or structure or sweeping plan of action, the idea that engineering is done for the betterment of humanity is a constant, whether it can be tangibly quantified or not.As Sita Syal and Julia Kramer, assistant professors in mechanical engineering at the University of Michigan, recently wrote in their study, “Design and Justice: A Scoping Review in Engineering Design,” there is “a growing priority in the engineering design research community to incorporate justice into design and to do so meaningfully and intentionally.” This paper was recently published in ASME's Journal of Mechanical Design. Both professors joined ASME TechCast to some insights into the interconnections between engineering and social justice, some of the lingering issues, and their hopes for the discourse moving forward.
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Aug 30, 2025 • 7min

Sweaty Rockets, Robot Embryos, and Recession-Proof Engineers

What do rockets, robots, and a looming recession have in common? They're all part of the August issue of Mechanical Engineering magazine, and our top picks for today’s podcast.Reusable Rockets Don’t Just Fly, They Sweat by Nicole Imeson looks at a surprising new idea for spacecraft design. Robots as Materials? by Nancy Kristof showcases research where biology and robotics meet in unexpected ways. And Bracing for Uncertainty by Kayt Sukel asks what economic turbulence could mean for engineers and their careers.
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Aug 7, 2025 • 17min

Podcast: Commercial Results with Consumer 3D Printers

Mike Zimmerman, CEO of Z-Polymers and a professor at Tufts University, discusses his groundbreaking polymer, Ptolemer. This material matches the strength of metals yet is designed for consumer-level 3D printing. He delves into the essential traits of innovation, emphasizing risk-taking and mentorship in scientific startups. Zimmerman also navigates the challenges of commercializing 3D printing materials while envisioning future sustainable applications. Personal stories highlight the importance of family support in his entrepreneurial journey.
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Aug 1, 2025 • 20min

Looking Back on Some Favorite Articles

In this special episode, Jeffrey Winters, editor in chief of Mechanical Engineering, looks back at some of his favorite articles from his 23 years at the magazine, and some of the writers who made them possible.
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Jul 16, 2025 • 21min

Engineering Better Pointework

A new device is bringing together the two somewhat disparate worlds of engineering and ballet. When most folks think of ballet, often the first thing that comes to mind are pointe shoes, which help make dancing on your toes possible. Traditional pointe shoes are still made with paste, fabric and cardboard, although some makers now use synthetic materials. But when it comes to learning how to dance in these shoes, in addition to proper form and technique, alignment is everything. A team of students at Johns Hopkins University’s Whiting School of Engineering has developed a solution called PointeSense, which is a smart toe pad and ankle band designed to help prevent injuries by ensuring that dancers are achieving that elusive perfect alignment. Christine Fernandez, a biomedical engineering major, and Kaitlyn Kumar, a master’s student in robotics, are both ballet dancers and co-inventors on PointeSense. They join ASME TechCast to share some insights into how they developed the device, what makes it work, and what lies ahead. 
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Jun 20, 2025 • 12min

What Engineers Often Overlook About Glass Materials

In this final episode of our four-part series with SCHOTT, we explore the lesser-known capabilities of glass materials and why they deserve a closer look from engineers.Tina Gallo and Zach Wimmer return to share how SCHOTT collaborates with engineers across industries, guiding material selection and innovation at every stage. Learn more at schott.com.
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Jun 6, 2025 • 8min

Glass Built for Extreme Temps

In this episode, we speak with Zach Wimmer, Director of Applications Engineering at SCHOTT, about a specialty glass-ceramic engineered to withstand continuous use at up to 1100°F and thermal shocks from temperatures as high as 1700°F. Listen in on how NEXTREMA® is helping engineers solve tough challenges in high-heat environments.This episode is part three of a four-part series. To learn more about how SCHOTT’s specialty glass solutions can support your next breakthrough, visit schott.com.
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May 29, 2025 • 8min

Podcast: Waste Heat Reuse

Aaron Wemhoff, professor of mechanical engineering at Villanova University, examines waste heat generated by data centers and posits that the situation is as much an opportunity as a challenge.

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