公开(公告)号：US06385847B1

公开(公告)日：2002-05-14

申请号：US09661335

申请日：2000-09-13

申请人： Jay M. Larson ,  David F. Berlinger ,  James R. Spencer ,  Xin Nie

发明人： Jay M. Larson ,  David F. Berlinger ,  James R. Spencer ,  Xin Nie

IPC分类号： B23P1500

CPC分类号： F01L3/00 ,  F01L2103/00 ,  Y10T29/49298 ,  Y10T29/49304 ,  Y10T29/49309 ,  Y10T29/49314

摘要： An improved process 30 for making an engine poppet valve 10 provides an unfinished poppet valve 10 with an initial diameter (d1) of a valve head 22 and an initial thickness (t1) of an interface 56 between a seat facing groove 54 and a combustion face 18 of the valve 50 prior to seat facing the valve 50 to prevent burn-through during the welding process 38. Coining 40 the valve head 22 after seat facing 38 decreases the initial thickness (t1) of the interface 56 to a selected thickness (t2) and increases the initial diameter (d1) to a final or desired diameter (d2) of the valve head 22. The method of the present invention eliminates any need for removing excess material and allows for hot forming the seat facing material 58 to reduce machining steps.

摘要翻译： 用于制造发动机提升阀10的改进方法30为未完成的提升阀10提供阀头22的初始直径（d1）和在面向对面的槽54和燃烧面之间的界面56的初始厚度（t1） 阀座50面向阀门50以防止在焊接过程38期间的烧穿。打印头40在阀座38之后的阀头22将接口56的初始厚度（t1）降低到所选择的厚度（t2 ）并且将初始直径（d1）增加到阀头22的最终或期望直径（d2）。本发明的方法消除了除去多余材料并允许热成型座椅材料58以减少加工的任何需要 脚步。