我们常利用应力引起的变形来校直已变了形的工件,这就是应力校直法。典型的例子是校直弯曲了的丝杠。一般初始按触机械的同志,认为丝杠弯了,应该从凸方向凹方施压或锤击(图1)才能校直。实际上这种方法校不直,不但校不直,还会弄出许多小弯,把丝杠扭成麻花形。 We often use the deformation caused by stress to align the deformed workpiece, which is the stress straightening method. A typical example is a straight lead screw. The general initial touch mechanics comrades, that the screw bent, concave direction should be convex from the side of the pressure or hammer (Figure 1) to straighten. In fact, this method is not straight school, not only the school is not straight, but also make many small bends, twist the screw into a twist shape.