| 摘要 |
The invention provides a production method of a forging piece, which can be used to solve the buckling problem by adjusting the deflection during the upset process from two sides in the length direction of the blank, can be used to improve the qualified rate, and to reduce the working time. In the production method, the module group can be used for the upset, and is provided with a first pressing module, a second pressing module, and a middle module. The middle module is disposed between the two pressing modules. A heated cylinder-shaped blank is inserted into a module cavity of the middle module, and the first pressing module is disposed under that, the second pressing module is disposed above that. Then the first upset process can be carried out by pressing the cylinder-shaped lank by using the second pressing module according to the predetermined length axially in an upset manner. The module group can be rotated upwards and downwards with the cylinder-shaped blank together, then the second pressing module is disposed under that, the first pressing module is disposed above that. The second upset process can be carried out by pressing the cylinder-shaped lank by using the first pressing module according to the predetermined length axially in an upset manner. |
