Finite Element Analysis of an Incremental Forming Process for Joining the Ball with the Socket of a Concave Piston Assembly

오목형 피스톤 조립체의 볼과 소켓의 체결을 위한 점진적 성형공정의 유한요소해석

A three-dimensional finite element approach to process analysis and design for joining the socket with the ball by a kind of the rotary forging processes is presented in this paper. The rigid-plastic finite element method is employed and its results are used to reduce the number of process design tryouts. The approach is applied to developing a concave piston assembly for a high pressure hydraulic pump. Experiments show that the developed piston assembly satisfies the quality requirement on geometrical tolerance.