公开(公告)号：US20250135523A1

公开(公告)日：2025-05-01

申请号：US18496602

申请日：2023-10-27

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Andrew Clay BOBEL ,  Diptak BHATTACHARYA ,  Andrew Geoffrey BALDING ,  William Yu CHEN ,  Ryan Curtis SEKOL ,  Derek Frei LAHR

IPC: B21D26/021 ,  B21D19/14 ,  B21D39/02 ,  B21D43/22 ,  B21D53/04

Abstract: A method of making a cold plate includes stacking three aluminum sheets on top of each other while each of the three aluminum sheets is generally flat. An edge of the three aluminum sheets are secured together. A top one of the aluminum sheets is welded to a middle one of the aluminum sheets at a plurality of first locations and a bottom one of the aluminum sheets is welded to the middle one of the aluminum sheets at a plurality of second locations different than the plurality of first locations. A pressurized medium is supplied between the top one of the aluminum sheets and the bottom one of the aluminum sheets to separate the top one of the aluminum sheets from the bottom one of the aluminum sheets and deform the middle one of the aluminum sheets.