Press Parts press_parts
| Application | Engine Crank Sprocket (Provided by Sugimura Seiko Co., Ltd.） |
| Material | SCM420 |
| Production Method | Transfer Forming (4 Stages) |
| Press Model | UL-6000 |
| Production SPM | 20 min-1 |
Forming Highlights
・Press-forming of the gear area. (Gear accuracy after heat treatment: Class 9, JIS B 1702-1:1998)
・Gear surface roughness is Rz3.2 or less
・Press-forming of the key-slot area. (Broaching is eliminated; post-heat treatment width tolerance is 50 μm)
・Key slot area surface roughness is Rz12.5 or less
・Carburizing quenching and tempering