The making of new mould has 2 steps, first, 2 workers do rough turning, and then other workers do fine finishing.
新模具的加工分成两块，先由两位模具工进行粗车，再由模具工进行精加工。
Turning tools. Turning tools can be either finishing or rough turning tools. Rough turning tools have small nose radii and are employed when deep cuts are made.
车削刀具可以是精车刀具或粗车刀具。粗车刀具刀尖半径较小，用 于深切削。
Rough turning tools can be right-hand or left-hand types, depending upon the direction of feed.
粗车刀具按其进给方向可以是右手型的或是左手型的。
Rough turning tools can be right-hand or left-hand types, depending upon the direction of feed.
粗车刀具按其进给方向可以是右手型的或是左手型的。
应用推荐