Technological Parameters Analysis and Numerical Simulation of Hot Pushing Pipe Bending

This paper introduces the forming principle and technological process of hot pushing pipe bending. The important technological parameters affecting the elbow size and shape are introduced. The technological parameters include design of horn mandrel, geometric design of pipe billet, heating temperature and temperature distribution, material constitutive model and pushing speed. On the basis of the production experience and theoretical analysis, hot pushing pipe bending process on horn mandrel is simulated by using MSC. Marc software. The ideal result is obtained and it will play a positive role in revealing the pipe forming mechanism.