Spherical pin hot and cold combined forging forming process, forging die and cold coining die
A forming process and technology of spherical pins, applied in the direction of manufacturing tools, forging/pressing/hammer devices, forging/pressing/hammering machinery, etc., can solve the problems of low material utilization rate, low mold life, high material utilization rate, etc., to achieve Improve precision and surface roughness, improve mold life, and avoid internal stress
Pending Publication Date: 2022-05-13
ANHUI ANHUANG MACHINERY
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Problems solved by technology
The two processes have their own advantages and disadvantages in actual production. The first process has a high mold life, but the material utilization rate is low; the second process is the opposite, the mold life is low, and the material utilization rate is high.
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[0045] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0046] The specific implementation of the present invention will be described in detail below in conjunction with specific embodiments.
[0047] Such as figure 1 As shown, the process flow chart of a kind of spherical surface heat and cold joint forging forming process provided for an embodiment of the present invention includes the following steps:
[0048] S1: blanking;
[0049] S2: heating;
[0050] S3: forging;
[0051] S4: trimming;
[0052] S5: heat treatment;
[0053] S6: shot blasting treatment;
[0054] S7: Magnetic particle inspection;
[0055] S8: Hardness testing;
[0056] S9: ...
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Abstract
The invention is suitable for the technical field of metal forming, and provides a spherical pin hot and cold combined forging forming process which comprises the following steps: blanking; heating is performed; forging is conducted; trimming is conducted; heat treatment; shot blasting treatment; performing magnetic powder inspection; detecting the hardness; cold coining; and packaging. And the forging is three-station forging forming, namely upsetting pre-forming, pre-forging and finish forging. The invention further provides a forging die for the forming process and a cold coining die for the forming process. The advantages of the two schemes are integrated, the improved scheme includes upsetting pre-forming, pre-forging and finish forging, the service life of a die is prolonged, the material utilization rate is increased, the cold coining technology is adopted, the precision and surface roughness of a forge piece are improved, and the cutting machining process of a spherical pin plane is replaced.
Description
technical field [0001] The invention belongs to the technical field of metal forming, and in particular relates to a spherical hot and cold combined forging forming process. Background technique [0002] Spherical pins are key components of automobiles. In recent years, with the development of precision forming technology, improving material utilization and improving mold life is the most effective way for enterprises to reduce costs and increase efficiency. [0003] At present, there are two forging forming schemes: one is upsetting → pre-forging → final forging; the other is upsetting pre-forming → final forging. The two processes have their own advantages and disadvantages in actual production. The first process has high mold life, but low material utilization rate; the second process, on the contrary, has low mold life and high material utilization rate. [0004] To sum up, there is an urgent need for a molding process that can combine the advantages of the above two s...
Claims
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IPC IPC(8): B21K7/12B21J5/00B21J5/08B21J13/02
CPCB21K7/12B21J5/002B21J5/08B21J13/02
Inventor 金朝晖吴雅俊吴曾龙
Owner ANHUI ANHUANG MACHINERY