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US 10,391,538 B2Granted
Method of manufacturing hot deep drawn steel parts of sheet metal
AssigneeZapadoceska Univerzita V Plzni
InventorsHana Jirková, Bohuslav Ma{hacek over (s)}ek
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Abstract
The invention relates to a method of manufacturing steel parts of sheet metal by hot deep drawing characterized by bringing the semi-finished product into austenitic condition by heating, subsequently cooling its locations, which would undergo undesirable deformation, to a temperature below the austenite temperature, and then completing the forming process.
Claims3
A hot deep drawing method of manufacturing steel parts comprising:
- (a) heating a sheet metal blank to bring the sheet metal blank into austenitic condition;
- (b) subsequently cooling critical-deformation locations of the sheet metal blank to a temperature below an austenite temperature, wherein the critical-deformation locations comprise undercooled austenite regions of the sheet metal blank and/or regions of mixed microstructures;
- and
- (c) subjecting the sheet metal blank to a forming process comprising a forming tool.
1 more element
Dependencies are inferred from the claim text.