Abstract: Punch press is the forging equipment, cold stamping machine tool, but forging characteristic a lot of people are not very clear, what are the characteristics of forging, specifically how to realize the forging?
As is known to all, punch press is the forging equipment, cold stamping machine tool, but forging characteristic a lot of people is not very clear, what are the characteristics of forging, specifically how to realize the forging? Here for your analysis:
The so-called forging is can change the mental organization, improve the metal properties. After hot forging ingot casting, original as-cast loose, porous, micro-crack etc compaction or welding; The original dendritic crystal were broken, make grain finer; At the same time, change the original carbide segregation and uneven distribution, uniform organization, thereby gaining internal dense, uniform and fine, good comprehensive performance, use reliable forgings. Forgings after hot forging deformation, metal are fibrous tissue; after the cold forging deformation, metal crystal was orderly.
Punch press forging is to make the metal plastic flow and work piece of desired shape. Metal plastic flow generated by external forces after the volume unchanged, and metal is always flowing to least resistance section. Production, often based on these rules control the workpiece shape, realizes the upsetting long pull, reaming, the bending, deep drawing etc deformation.