Stainless steel products that require both cold heading and machining operations have been notoriously troublesome—because stainless alloys that machine easily don't lend themselves to cold forming and vice versa. Carpenter Technology Corp. (www.cartech.com) recently developed an alloy intended to support cold forming and various machining operations, including drilling, slotting, and broaching. Called 302HQ-FM® stainless (S30431), this stainless grade offers a low work hardening rate to foster cold forming operations. At the same time, it has a machinability rating approaching that of Type 303 stainless.
A make-your-own Star Wars Sith Lightsaber hilt is heftier and better-looking than most others out there, according to its maker, Sean Charlesworth. You can 3D print it from free source files, and there's even a hardware kit available -- not free -- so you can build one just in time for Halloween.
Highly regarded engineer and physicist Ransom Stephens speaks with Design News about his extensive science and engineering background, the serious yet funny study of neuroscience, and how one primes their brain for innovation.
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