The segment blank holder with a multi-pin system was first designed to load the blank-holder force (BHF) independently in different area of a sheet.

• 首先设计了分块压边板，采用多点顶杆结构提供拉深所需的压边力，各个顶杆之间相互独立，可在板料不同的区域实现不同的压边力加载。