在加工薄壁圆管过程中,经常会发现内孔不圆、局部弯扭等现象,影响加工质量。我们采取了用硬质钢珠整形的方法,取得了良好的效果。具体作法如图所示,选用或自制一个直径等于管子内径的硬质钢球,将其塞进管内,并击打使其通过变形部位。必要 In the process of processing thin-walled pipe, often found inside the hole is not round, local bending and torsion phenomenon, affecting the processing quality. We have taken the method of plastic ball with plastic, and achieved good results. The specific practice as shown, the choice or made of a tube diameter equal to the diameter of the hard steel ball, the pipe into the tube, and hit to make it through the deformation of the site. necessary