Because the tool bit and the tool bar are is fixed together by the tapering shape positioning device, the tool bit can be dismounted from the tool bar to make a multi-purpose tool bar. 由于刀头和刀杆是用锥式定位装置固定在一起的,所以刀头可以从刀杆上拆卸下来,使得一刀杆多用。
Especially, when the initial length of the fused zone is known, the solution can predict the whole tapering shape curve with an arbitrary elongating length. 应该指出:只要已知初始熔融区长度,获得的解能预知任意拉伸长度下的拉锥锥形曲线。