发明名称 METHOD FOR PRODUCING A GUN BARREL HAVING BARREL FLUTINGS
摘要 The invention relates to a method for producing a gun barrel by cold forging a cylindrical blank in a barrel hammering machine, which has a plurality of forging hammers distributed around the circumference of the blank and acting radially on the blank, wherein forging hammers having ribs parallel to the longitudinal axis of the blank are used in order to forge longitudinal grooves in the blank during the cold forging.
申请公布号 US2016016217(A1) 申请公布日期 2016.01.21
申请号 US201414772465 申请日期 2014.01.15
申请人 STEYR MANNLICHER GMBH 发明人 Engesser Michael
分类号 B21C37/15;F41A21/24 主分类号 B21C37/15
代理机构 代理人
主权项 1. A method for producing a gun barrel by cold forging a cylindrical blank having an axial passage opening, comprising the steps: introducing a forging mandrel into the axial passage opening of the cylindrical blank; cold forging the gun barrel by means of a gun barrel forging machine, which has a plurality of forging hammers, which are distributed around the circumference of the blank and act radially on the blank in the region of the inserted forging mandrel; and, during the cold forging, forging longitudinal grooves into the blank by means of said forging hammers, which have ribs that are parallel to the longitudinal axis of the blank for this purpose.
地址 Kleinraming AT