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'How is it made?' - Metal production method?

'How is it made?' - Metal production method?

'How is it made?' - Metal production method?

(OP)
I can' figure out,how this is produced?




My first thoughts:

High Energy hydroforming or Hydroforming, but making the inquiry, I received:

- Texture to fine...
- Cannot be demolded.... (outside has deboss/ inside emboss)

Does anyone a suggestion?

Thanks already,

Chris

RE: 'How is it made?' - Metal production method?

No one can tell you much unless you provide some dimensions and a target material.

RE: 'How is it made?' - Metal production method?

(OP)
Sorry about that ;)

Dimensions are approximately 300mm diameter/ 75mm Height.
The granulation pattern (emboss) on the inside is about 2,5mm in diameter. Deboss on the outside.
Wallthickness +-1,5mm.
Made out of steel, epoxy powdercoating finishing.

Actually, it is kitchenware, not a wok, but a salad bowl.

Hope this can help to solve the puzzle ;)

RE: 'How is it made?' - Metal production method?

Metal spinning
Draw die, stamping

Ted

RE: 'How is it made?' - Metal production method?

Texture flat and then form

RE: 'How is it made?' - Metal production method?

Emboss flat, cut blanks, stamp with the plug having a urethane jacket to not damage the embossing.
Is the outer edge actually coated? Or did they precoat the sheet and leave that edge raw?
If the edge is coated they may have coated the circular blanks before forming.

= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy, consulting work welcomed

RE: 'How is it made?' - Metal production method?

(OP)
Hi Ed,

thanks, based on your reply, I believe it is the correct anwser:

- Emboss Flat
- Stamp with rubber pad / rubber Jacket on the plug >> https://en.wikipedia.org/wiki/Rubber_pad_forming



- Cut blanks
- Powder coating (Actually, there is a little tag mounted through the bowl's wall. The hole is used as suspension point when powder coating.)

Thanks again!


Chris



RE: 'How is it made?' - Metal production method?

IRS, I am sure that the sheet is roll embossed prior to forming.

= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy, consulting work welcomed

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