公开(公告)号：US20210187653A1

公开(公告)日：2021-06-24

申请号：US16723162

申请日：2019-12-20

Applicant: GM Global Technology Operations LLC

Inventor： Amberlee S. Haselhuhn ,  David R Sigler ,  Robert T Szymanski

IPC: B23K11/11 ,  B23K11/18 ,  B23K11/20

Abstract: A combined stackup apparatus with a perforated interlayer for resistance spot welding is provided. The apparatus comprises a first metal sheet of a first material and a second metal sheet of a second material. The apparatus further comprising a perforated interlayer disposed between the first metal layer and the second metal layer. The perforated interlayer is made of one of the first and second materials. The perforated interlayer has a plurality of perforations formed therethrough. Each perforation has a perforation size of between about 0.1 mm and about 3 mm.

公开(公告)号：US11471972B2

公开(公告)日：2022-10-18

申请号：US16723162

申请日：2019-12-20

Applicant: GM Global Technology Operations LLC

Inventor： Amberlee S. Haselhuhn ,  David R Sigler ,  Robert T Szymanski

IPC: B23K11/11 ,  B23K11/20 ,  B23K11/18 ,  B23K103/20

Abstract: A combined stackup apparatus with a perforated interlayer for resistance spot welding is provided. The apparatus comprises a first metal sheet of a first material and a second metal sheet of a second material. The apparatus further comprising a perforated interlayer disposed between the first metal layer and the second metal layer. The perforated interlayer is made of one of the first and second materials. The perforated interlayer has a plurality of perforations formed therethrough. Each perforation has a perforation size of between about 0.1 mm and about 3 mm.