SCIENCE AND TECHNOLOGY ENGLIAH FOR MECHANICAL ENGINEERING Shaving and rolling Shaving and rolling are both used finishing processes for gears in the "sO rollin g滚压 state. The objective is to improve surface finish and profile by mating the roughed- swarf切屑 out gear with a"cutter" which will improve form coolant冷却液 a shaving cutter looks like a gear which切削液 has extra clearance at the root(for swarf and rape 刮削 coolant removal) and whose tooth flanks have been grooved to give cutting edges. It is run in mesh with the rough gear with crossed axes so that there is in theory point contact with a relative velocity along the teeth giving scraping action. (c)SCIENCE AND TECHNOLOGY ENGLISH FOR MECHANICAL ENGINEERING Shaving And Rolling Shaving and rolling are both used as finishing processes for gears in the “soft” state. The objective is to improve surface finish and profile by mating the roughed￾out gear with a "cutter" which will improve form. A shaving cutter looks like a gear which has extra clearance at the root (for swarf and coolant removal) and whose tooth flanks have been grooved to give cutting edges. It is run in mesh with the rough gear with crossed axes so that there is in theory point contact with a relative velocity along the teeth giving scraping action.（c） rolling 滚压 swarf 切屑 coolant 冷却液 切削液 scrape 刮削