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A kind of forging process of the alien wheel with handle

A technology of extraterrestrial wheel and process, applied in the field of forging, can solve the problems that it is difficult to keep the temperature of the forgings consistent, the surface of the forgings is prone to cracks, and the forgings are uneven in thermal expansion and contraction, so as to reduce the generation of internal stress and reduce oxidation. Possibility, the effect of reducing the possibility of cracks

Active Publication Date: 2022-02-22
上海长特锻造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above existing technical solutions have the following defects: after the forging is heated and forged, it needs to be heat treated, and when the forging is cooled, it is difficult to ensure that the temperature inside and outside the forging is consistent, and it is easy to cause inconsistent temperatures inside and outside the forging, resulting in The thermal expansion and contraction of the forging is uneven, resulting in internal stress, which makes the surface of the forging prone to cracks

Method used

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  • A kind of forging process of the alien wheel with handle
  • A kind of forging process of the alien wheel with handle
  • A kind of forging process of the alien wheel with handle

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Embodiment Construction

[0044] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0045] refer to figure 1 , which is a flow chart of a forging process for an outer planetary wheel with a handle in an embodiment of the present invention, figure 2 The specific flow chart of the sub-hot extrusion of the billet in the embodiment of the present invention, image 3 It is a specific flow chart of the staged cooling of forgings in the embodiment of the present invention, Figure 4 Is the structural schematic diagram of the cooling box 1, the following by combining Figure 1-Figure 4 The specific steps of the forging process of the shank outer planetary wheel are described in detail:

[0046] S1, blanking, cutting the blank into blanks of required length by a shearing machine;

[0047] S2. Heating, using a medium frequency induction heating furnace to heat the billet, and the heating temperature is 980-1000°C;

[0048] S3, sub-heat extrusion, ...

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Abstract

The invention discloses a forging process of an outer star wheel with a shank, which relates to the technical field of forging, and comprises the following specific steps: blanking, heating, sub-hot extrusion, segmental cooling and cold finishing, and the sub-hot extrusion also includes In the pre-forming stage and the final forging forming stage, sub-stage cooling includes initial cooling, middle cooling and post-cooling. The invention has the effect of being able to dissipate heat evenly on the forging and reducing the possibility of cracks in the forging.

Description

technical field [0001] The invention relates to the technical field of forging, in particular to a forging process of an outer planetary wheel with a handle. Background technique [0002] At present, the outer star wheel is the main force-bearing part of the automobile transmission shaft, and its working conditions are extremely complicated. Its performance directly affects the reliability and safety of the automobile transmission. Forging is a processing method that uses forging machinery to apply pressure to metal blanks to cause plastic deformation to obtain forgings with certain mechanical properties, certain shapes and sizes. It is one of the two major components of forging. Forging can eliminate defects such as as-cast porosity produced in the metal smelting process and optimize the microstructure. At the same time, due to the preservation of complete metal flow lines, the mechanical properties of forgings are generally better than castings of the same material. [00...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21J5/02B21J13/02B21J17/02B21K1/30B21K27/06B21K29/00B21C25/02
CPCB21J5/002B21J5/02B21K1/30B21K29/00B21J17/02B21J13/02B21K27/06B21C25/02
Inventor 林象张俊俊王振洲王欢陈国良
Owner 上海长特锻造有限公司
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