Apparatus and method for preparing hot stamped part

Abstract

A method for mass preparing hot stamped parts is disclosed, it includes: feeding a blank into an airtight feeding chamber and then pumping the feeding chamber to a certain vacuum; feeding the blank to an airtight heating chamber for austenitizing heating to obtain a hot blank; feeding the hot blank to an airtight discharging chamber; and transferring the blank conveyed from the discharging chamber to the stamping press for hot stamping forming. By using the method, especially an aluminum-silicon coated blank is subjected to airtight heat treatment and hot stamping by the stamping press, high-strength aluminum-silicon coated parts produced have obviously less hydrogen content than high-strength aluminum-silicon coated parts produced by a traditional atmosphere furnace, which is with less risk of hydrogen embrittlement and is particularly suitable for hot formed aluminum-silicon coated parts with strength of more than or equal to 1500 MPa.

Dependencies are inferred from the claim text.