公开(公告)号：US20250079956A1

公开(公告)日：2025-03-06

申请号：US18467159

申请日：2023-09-14

Applicant: GM Global Technology Operations LLC

Inventor： Yiwu Xu ,  Hongyi Zhan ,  Wenying Yang ,  Qigui Wang

IPC: H02K15/14 ,  B22D17/08 ,  B22D17/20 ,  B22D17/28 ,  B22D17/30 ,  H02K5/06

Abstract: A die cast part, such as an electric drive unit, a high pressure die casting system, and a method of forming a die cast part. The high pressure die casting system includes a shot sleeve including a pour hole, a launder connected to the pour hole, a furnace connected to the launder, a mold cavity connected to the shot sleeve by a sprue post, and a heating system including at least one proximal channel located under the pour hole under the shot sleeve. The feedstock is melted in the furnace and transferred by a launder into the preheated shot sleeve through a pour hole. The feedstock is injected into a mold cavity, wherein the temperature of the feedstock is above the solidus temperature of the feedstock upon entering the mold cavity.