公开(公告)号：US20150038244A1

公开(公告)日：2015-02-05

申请号：US14515604

申请日：2014-10-16

申请人： Jiahua MIAO ,  Akira SERA ,  Shunsuke MAKINO

发明人： Jiahua MIAO ,  Akira SERA ,  Shunsuke MAKINO

IPC分类号： B21J5/02 ,  F16D3/34 ,  B21J9/02

CPC分类号： B21J5/025 ,  B21J5/02 ,  B21J9/02 ,  B21J9/022 ,  B21K1/762 ,  B21K1/763 ,  F16D3/2055 ,  F16D3/34 ,  F16D2250/00

摘要： After molding a product-to-be-preliminarily-molded to form a preliminarily molded product as a material, the preliminarily molded product is put into a full-enclosed forging die so that a product is molded with the full-enclosed forging die. On a preliminary leading-end surface to be formed as a leading end surface of a shaft portion of the product formed of the preliminarily molded product, there is formed a shear-drop suppressing portion for suppressing thickness reduction on a boss-portion side of an outer peripheral portion of the leading end surface of the shaft portion of the product. At a time of putting the preliminarily molded product into the full-enclosed forging die so as to mold the product, a relief portion is formed between the leading end surface of the shaft portion to be formed and a cavity of the full-enclosed forging die.

摘要翻译： 在将要预先成型的产品成型以形成预成型产品作为材料之后，将预成型产品放入全封闭的锻造模具中，使得产品用全封闭的锻造模具成型。 在由预成型品形成的产品的轴部的前端面形成的预备前端面上形成有用于抑制凸起部侧的厚度减少的剪切抑制部， 产品的轴部的前端面的外周部。 在将预成型品投入到全封闭锻造模具中以成型产品的时刻，在要形成的轴部的前端面与全封闭锻造模具的空腔之间形成有浮雕部 。