Acompounddieisonethatperformstwoormorestampingprocessessimultaneouslyin asinglejourneyofthepressononeworkpiece.Therearemanydifferentcompounddies,suchastheblanking-piercingcompounddie, _____________, ________________ ,theblankingdrawing-formingandcircumferential-embossingcompounddie,__________,andthecuttingbendingwarpingcompounddie,etc.压力机一次行程中在一个工位上同时完成两个或两个以上冲压工序的模具称为复合模，有落料冲孔复合模、落料冲孔弯曲复合模、落料拉深冲孔翻边复合模、落料拉深成形圆周压纹复合模、拉深挤边压凹冲孔复合模、切断弯曲扭弯复合模等。