Looks like something out of Alien.
I don’t know if I’d trust these things holding the car up
I suspect this comment wasn’t so much an engineering analysis as it was a way to register his unfamiliarity with a new structural form created by additive manufacturing techniques.
Cool idea, but I agree. Without some serious testing I wouldn't trust it either.
No kidding! This comment suggests testing is optional . . . no serious engineering / manufacturing firm would omit testing such a part. Theoretical models for even traditional manufacturing techniques are rarely (if ever) good enough to omit real-world testing, especially in mission-critical or safety-related applications.
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A bigger concern is that, as it is not a cast metal forging, it might not fail gracefully. Powder metal connecting rods are known for being great until they hit the very sharp limit, for instance.
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is comparing the characteristics of a part manufactured using a traditional forging process with a powdered metal part. That’s a valid and useful contrast to consider when evaluating something like the upright cited by the OP. Maybe you don’t like his terminology . . . but if that’s all you got from his words, you're missing the point (and I would suggest doing so on purpose). Regarding a cast blank for forging, I don’t know how to get molten metal out of a crucible except to pour it into a mold or squeeze it through a die. In either case, that metal sits around in something and cools (often even if it goes through some kind of cooled die), and that thing is often called a mold. That’s pretty much the definition of casting. But again, that’s not his point: it is clear fused powdered metal and molten metal somehow obtained from a crucible and given a shape will have different characteristics.
Originally Posted by machine.gun.kelly
Cast metal forging? Metals are either cast or forged, not both. Also, when a material yields, it stretches... "fracturing" is a certain type of brittle failure. There is also ductile failure.
You have a long history of trolling and being shown to talk about things of which you clearly have no expertise. I find it difficult to take anything you say seriously.
If I have a red car, paint it blue, then someone steals . . .
Wait . . . I thought we were talking about manufacturing processes related to metal. What?
. . . so save the snark for somebody who cares.
Normal people aren’t experts on everything. What’s cool about a forum like this is we can come together and share the little bit each of us knows. Then normal people can gain some insight into previously unfamiliar topics. That model fails when people purposely sabotage it (looking at you MGK), contribute by making sh*t up to look smarter than they are, or don’t try to overcome the inherent difficulties of communicating. There’s a benefit to be had here on LotusTalk . . . so far this thread is a great demo of how to totally miss out on that.