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This was the most compelling explanation of the visuals. They are saying that Telsa put function radically over form to reduce manufacturing complexity and effi
by netfl0 7y ago
This was the most compelling explanation of the visuals. They are saying that Telsa put function radically over form to reduce manufacturing complexity and efficiency. This is a purely utilitarian approach that is not self-evident.
I hope Telsa will put together a better presentation to explain this to the public. This is the sort of technical progress you'd like to see in other domains.
- new_realist 7y agoThese are mostly old manufacturing ideas which affect crash safety; repairability, an street legality.
- sschueller 7y agoIt reminds be a lot of the DeLorean.
- ziftface 7y agoCould you please explain how it affects those things? I'd be very interested in learning about that.
- tshannon 7y agoI can't speak towards repairablity and legality, but I know cars are safer now than they used to be back when they were made of steel, because they crumple which absorbs the impact of crashes. Rigid steel transfers the impact to it's occupants. I'm eager to see how this thing performs in crash tests.
- ziftface 7y agoAh that makes sense. I'm interested to see how it performs there too
- netfl0 7y agoYes they affect them, not all in a negative way.
- LoSboccacc 7y agounconvinced. long, precise, sharp angles are expensive to stamp on thick steel plates. so I've checked around the pictures, apparently the marketing material has seams along the angle, but the car in the presentation has angled plates. something doesn't add up https://imgur.com/a/HO1HnGC https://imgur.com/a/HO1HnGC
- fiter 7y agoI figured they would be using a brake[0] for the bends. [0] https://en.wikipedia.org/wiki/Brake_(sheet_metal_bending) https://en.wikipedia.org/wiki/Brake_(sheet_metal_bending)
- LoSboccacc 7y agoyeah but that doesn't make really sharp angles and controlling the curve where it bends precisely is hard, fighting that is going against the claim it's about manufacturing efficiency
- fiter 7y agoPoint well taken. There are multiple dimensions to manufacturing efficiency, though, right? I have no appreciation for the cost of a couple dies and a machine for stamping versus the cost of a CNC break with one die, but it may play a part based on the number of units they think they will sell. (1,000? 10,000? 100,000?)
- double0jimb0 7y agoIf starting with super hard cold rolled steel, it’s most likely impossible to “stamp” using traditional progressive stamping dies. The deformation has to exceed the final shape and via springback the final shape is produced. Springback is possible on a press brake when folding along a single straight line. If panel needs a 30 deg bend, then bend it to 40, and it pops back 10 when off the press brake. As an example. That quickly gets impossible to do when you start bending around complicated 3D contours.
- 7y ago