Abstract
Use the blank Die Forgings after deformation was forging methods forging. The ultimate passive gear their shape, size, technical requirements, the lot size and other factors determine a hammer forging their design and production. Its design steps: First, according to the calculation and mapping Parts forging map, the main parameters of forging determine forging hammer tonnage. Then by 1.5% thermal coefficient of thermal mapping Forgings plans, and to identify the steps of billet. Finally, the rough determine the specifications of size, and upsetting the design and end-bore design and forging die forging dies structural design, the preparation of forging manufacturing process. Key words forging; forging map; upsetting Taiwan;-bore design; CAD