How to solve the bending phenomenon of trapezoidal screw

Secondly: when straightening the trapezoidal screw, there is basically no need to use any machine tool to provide auxiliary support surfaces, because if the trapezoidal screw is used with a lathe, in fact, the final straightening will not be achieved in many cases. The effect is mainly because when the machine tool is straightened, it basically uses flame or impact, which will definitely affect the trapezoidal screw. The most important thing is that this method will cause the trapezoidal screw to rotate. At that time, there was a serious phenomenon of centrifugal force.
Again: If the trapezoidal screw is bent overall, it is best to use a press to straighten it, and directly place the trapezoidal screw on the shaped iron, and put the pre-prepared mold with a round shape. The whole is placed on the surface of the trapezoidal screw, and then the straightening effect can be observed with the naked eye.
Finally: when the bending of the trapezoidal screw is partial, the best straightening method is definitely manual straightening. The method is the same as the overall straightening. Manually, the bending position of the screw is repeatedly tapped with a sledgehammer, and finally Achieve the expected straightening effect.