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Forging method of soliding fork

A sliding fork and forging technology, which is used in the manufacture of tools, forging/pressing/hammer devices, forging/pressing/hammering machinery, etc. The effect of reducing repair costs, reducing mold repair costs and improving service life

Inactive Publication Date: 2006-06-14
INNER MONGOLIA FIRST MACHINERY GRP
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Problems solved by technology

The disadvantages of this solution are: expensive large-tonnage hot die forging presses are required, high energy consumption, low material utilization, and high forging costs
Although Zhao Jiaqin of the domestic Dongfeng Forging Factory improved a traditional open die forging process scheme similar to forgings in the article "Forging Fork Forging Process Improvement" (Automobile Technology and Materials, Issue 5, 1995), which improved to a certain extent Material utilization rate and die life, but there are still shortcomings of poor forging precision, low material utilization rate, large tonnage of required equipment, and high energy consumption

Method used

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  • Forging method of soliding fork
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  • Forging method of soliding fork

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Embodiment

[0015] Below in conjunction with accompanying drawing, the present invention will be further described:

[0016] The invention consists of Figure 1 to Figure 6 As shown, first design the hot forging diagram according to the product parts diagram, and make the law of the distribution of the volume of each part of the forging along the axial direction of the forging according to the hot forging diagram, and design the blank that should be made by cross wedge rolling; then according to the method of the present invention Principles and methods design the final forging die diagram; according to the hot forging diagram and the final forging die diagram, calculate the energy parameters (extrusion force and die force, etc.) during deformation, and select the die force loading mode and equipment type; Design the cross-wedge rolling die, final forging die and cut-off fork continuous skin die according to the principle; finally select the appropriate die material and heat treatment met...

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Abstract

A technology for forging the slide fork includes such steps as heating the blank, transverse rolling by wedge part, clamping the rod part of blank by upper and lower female dies for precise locating, punching by upper and lower punching heads for precisely shaping the fork part, and removing the residual material from the fork part. Its advantages are high precision and long service life of upper and lower female dies.

Description

Technical field: [0001] The invention belongs to the field of forging, and in particular relates to a forging method of a sliding fork. Background technique: [0002] The sliding fork is a key part in the steering structure of an automobile. Due to the complexity of its geometry and the importance of its performance, it is difficult to forge it. The forging has a complex shape, high geometric accuracy and high tolerance requirements. Poor performance, difficulty in organizing production, high scrap rate, high defective rate, low forging die life and low material utilization rate in production. Therefore, the development of reasonable forging methods for such forgings has received great attention both at home and abroad. [0003] At present, the conventional forging process of this type of forging is open die forging pre-forging, final forging and deburring. For example, the domestic 40MN hot die forging press adopts the forging process plan of open die forging, pre forging...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21J5/02B21J1/06B21J13/02
Inventor 谷志飞
Owner INNER MONGOLIA FIRST MACHINERY GRP
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