在实际生产中,扁铜线或扁钢带正面弯曲的情况较为普遍,如图1a所示,但在变压器行业中,扁铜线的侧面弯曲(见图1b)则经常遇到,例如大容量、大电流变压器的次极线圈连线以及一些引线都需侧面弯曲成型。对于扁线的侧面弯曲来讲,其抗弯惯性矩远远大于正面弯曲的情况。从工程力学中可知,横断面积相同而横断面 In actual production, flat copper wire or flat strip bending the front is more common, as shown in Figure 1a, but in the transformer industry, flat copper side bending (see Figure 1b) are often encountered, such as large capacity , The secondary winding of the high-current transformer and some leads need to be bent and shaped on the side. For the flat side of the curve in terms of bending moment of inertia is far greater than the front bending of the case. From engineering mechanics we can see that the same cross-sectional area and cross-section