Calculating extrusion pressure of interference fit for assembling die of cold stamping steel ball;

This paper takes the intellectualized virtual design of the assembling die as the research direction, automatically analyzes the process of making blanking part and how to choose the exact components of the die skeleton and finishes the collection of practical experience and theoretical analysis.

An improved compound die was developed for the forming of a type of semisphere hard metal alloy article,in which bidirectional and floating die assembly were applied instead of conventional single action compression structure.

Application of combined dies in automobile production

In the study of automatic forging press new product which is used for the cold form of the tall and slender pole, in order to judge whether the structural design of the combined die meets the requirement, the finite element and mechanical model of the interference joint between inside lining and outside wrap is established by used contact-finite-element methods.

According forging forming of the large-scale crank semifinished material using on ship manufacture, using combined die instead of entirety die, the manufacturing cycle is short,the processing is easy.

This article introduces the way how to optimize large mould gate position by using CAE software to analysize fill time, pressure distribution of filling, volumetric shrinkage at ejection and sink index.