A new method for predicting drawing load of shape drawing process

摘要

The shape drawing process is a very useful metalworking process that can produce an elongated component with a constant cross-sectional shape. The prediction of drawing load is critical for evaluating the potential of shape drawing. However, it is challenging to predict the drawing load of shape drawing because of the complex cross-sectional shape of the drawn material. In this study, a new theoretical method is proposed to predict the drawing load of shape drawing. The proposed method is based on the geometric division of the cross section and an axisymmetric drawing load prediction model. The drawing loads of square and hexagon shape drawings from round material are predicted by using the proposed method. The effectiveness of the proposed method is verified through finite element analysis and a shape drawing experiment.