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How can such a part be made from steel?

Mr_Curious

Mechanical
Jul 14, 2020
47
Hello everyone. Designed a fun but don't know whether is it possible to make such part from steel. How can such a part be made from steel? Sizes in mm. Thank you.PXL_20250220_123639597~2.jpgPXL_20250220_123659274.jpgPXL_20250220_123626342~2.jpg
 
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Almost anything can be made from steel. Depends how much $$ you want to spend. It can be formed from Sheetmetal, cast, machined.....
 
Simple stamping / forming process from a piece of flat steel.

Looks like a plate with a large hole in the middle of it?
 
That's a very large complex piece for only 4 of them.

Is this a giant hub cap or something?
 
With a variation on the formed radius of 0.2mm? And splitting 0.3 mm on two surfaces for flatness?

That's a lot of cost.

Also you have 3 dimensions controlling 2 dimensions in space. The overall diameter, the depth, and the formed radius all compete to define the outer edge.

In the CAD system did you need to add one of those dimensions to the drawing that the model didn't have?


Nevermind; the center flat diameter isn't specified.
 
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Metal spinning and laser trim seems pretty doable. You could hydroform it, but would have to find a vendor with a 50" hydroform. Probably could get away with pretty cheap tooling for the hydroform, then laser trim, once again.
 
Op
take your drawing to a sheet metal shop that has hydroforming, spining, or hydro press
get a quote for cost , since it'sonly 4 parts.
expect high cost due to engineering and setup cost.
 
If those tolerances are critical, your best bet might be to start with a >44 mm disk and just machine the whole thing out of it.
Otherwise, take a good look and see if you can alter shape and/or tolerances.
For example, you can readily buy dished heads, where the whole thing is formed to a radius. You can buy flanged-only heads, where the center is flat and the edge is formed to a tight knuckle. You can get cones fabricated fairly readily. But none of those is going to meet a 0.3mm tolerance, either.
If you're going to specify the depth to a tight tolerance, you should probably show more exactly what the outer edge looks like, whether a sharp corner or what.
 
Easy peasy lemon squeezy. Either stamping for large numbers, or metal spinning for small numbers (tolerances may be hard to achieve). Or of course you could go the 'machine it from billet' route so beloved of hacks (not hackers).
 
Metal spinning and laser trim seems pretty doable. You could hydroform it, but would have to find a vendor with a 50" hydroform. Probably could get away with pretty cheap tooling for the hydroform, then laser trim, once again.
Thank you GregLocock. If make it from segments and then weld, then maybe it will make it easier to manufacture?
 
If those tolerances are critical, your best bet might be to start with a >44 mm disk and just machine the whole thing out of it.
Otherwise, take a good look and see if you can alter shape and/or tolerances.
For example, you can readily buy dished heads, where the whole thing is formed to a radius. You can buy flanged-only heads, where the center is flat and the edge is formed to a tight knuckle. You can get cones fabricated fairly readily. But none of those is going to meet a 0.3mm tolerance, either.
If you're going to specify the depth to a tight tolerance, you should probably show more exactly what the outer edge looks like, whether a sharp corner or what.
Thank you JStephen. I can expand tolerances. If make it from segments and then weld, then maybe it will make it easier to manufacture?
 
Metal spinning and laser trim seems pretty doable. You could hydroform it, but would have to find a vendor with a 50" hydroform. Probably could get away with pretty cheap tooling for the hydroform, then laser trim, once again.
Thank you dvd. If make it from segments and then weld, then maybe it will make it easier to manufacture?
 
Welding will vastly increase the problems you have with those tolerances.
 

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