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US 6,598,441 B1Granted
Method for forming metal parts by cold deformation
AssigneeDacral
InventorsDavid Cavaliere, Denis Begue
Life of this patent
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Abstract
The invention concerns a method for forming metal parts by cold deformation, consisting in: (i) mechanically depositing a metal zinc layer on the free surface of the blank of the part to be produced; and (ii) forming said part by plastic deformation.
Claims11
A process for forming metal workpieces by cold deformation, which process comprises steps of:
- i) mechanically depositing a layer based on metallic zinc on a free surface of a blank of a workpiece to be produced;
- ii) applying a layer of lubricant on the layer based on metallic zinc;
- and
- iii) forming said workpiece by plastic deformation.
1 more element
Dependencies are inferred from the claim text.