| abstract |
[PROBLEMS] To divide the end of a metal plate or metal rod having a rectangular, polygonal or elliptical shape in the horizontal direction and to adjust the cut length of the divided portion freely and to perform smooth division. Provided are an end dividing method capable of forming a surface, a metal part manufactured by the method, and a joining method thereof. SOLUTION: At least two opposing positions on both sides of a metal plate or the periphery of a metal rod are clamped by a presser mold, and a split punch or a slit punch is press-formed at one end surface edge of the metal plate or metal rod. And splitting by splitting or slitting in the horizontal direction, and repeating the press molding operation with the same punch as described above for the split portion of the split, and further splitting, and performing each press molding Each time the operation is performed, the position of at least one of the holding dies is moved in advance according to the distance from the end of one end surface of the metal plate or metal bar to the tip of the portion to be divided. [Selection] Figure 1 |