50results about How to "Reduce forming pressure" patented technology

The invention relates to the field of metal forming, in particular to a high-uniformity short-process forming method for a large metal component. Firstly, a cast alloy cast ingot is subjected to superhigh temperature demolding; then soaking is conducted on the liquid core cast ingot, precise control of the liquid fraction of the core part of the cast ingot is achieved, axial upsetting and rollingare conducted on the cast ingot under a forging press, dendrite at the liquid core of the cast ingot is fully crushed and balled, and a uniform and tiny semisolid structure is formed; and finally radial and axial forging is conducted on the cast ingot, and the cast ingot is forged into the needed large metal component structure. Through the high-uniformity short-process forming method, the problems such as shrinkage cavity and porosity and dendritic segregation in the cast ingot are solved, the central mechanical performance of the large metal component can reach the surface performance level,and uniformity of the overall performance of the component is improved. The core part of the cast ingot forms the uniform and tiny semisolid structure, and thus the final forge piece has good comprehensive performance. Forming pressure is small, the requirement for ability of forging equipment is lowered, the technological process is shortened, and production cost can be lowered effectively.