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Vertical forging process of double-shaft-coupling tooth blank with deep blind holes

A double-coupling, deep blind hole technology, applied in the field of forging technology, can solve the problems of increasing the cost of a trimming die, not being able to forge deep blind holes, and long process flow, so as to facilitate plastic deformation, avoid folding or Interlayer, quality-enhancing effect

Active Publication Date: 2020-07-03
四川弘信能源装备制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] like figure 1 The traditional manufacturing method of the double-coupling gear with deep blind holes shown above is to use horizontal forging first, but horizontal forging cannot forge deep blind holes, and can only forge full-core double-coupling gear blanks; forging After completion, the deep blind hole is completed by machining
In addition, horizontal forging also needs trimming, which increases the cost of a trimming die, resulting in a long process flow, high material costs, and high subsequent machining costs

Method used

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  • Vertical forging process of double-shaft-coupling tooth blank with deep blind holes
  • Vertical forging process of double-shaft-coupling tooth blank with deep blind holes
  • Vertical forging process of double-shaft-coupling tooth blank with deep blind holes

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Embodiment Construction

[0037] Below by embodiment and in conjunction with accompanying drawing, the present invention will be further described:

[0038] A vertical forging process for double-coupling gear blanks with deep blind holes, comprising the following steps:

[0039] Step 1. Precise blanking; after passing the inspection, the bar is blanked with a band saw or circular saw. The sawing seam is required to be smooth, and the blank is precisely blanked according to the weight of the forged blank. The blanking error must not exceed 1%;

[0040] Step 2. Heating to the forging temperature; putting the billet into an induction heating furnace or a gas heating furnace, heating to the forging temperature and then releasing it from the furnace;

[0041] Step three, aggregate;

[0042] Step four, pre-forging;

[0043] Step five, final forging.

[0044] like figure 2 As shown, the aggregate mold used in the aggregate process is mainly composed of the aggregate mold upper template A-1, the aggregate...

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Abstract

The invention discloses a vertical forging process of a double-shaft-coupling tooth blank with deep blind holes. The process comprises the steps that precise blanking is carried out, specifically, precise blanking is carried out according to the weight of the blank after forging molding, and the blanking error does not exceed 1%; heating is carried out to reach a forging temperature; material aggregating is carried out, specifically, the cavity volume of a material aggregating mold is 1%-2% larger than the total volume of the blank; pre-forging is carried out, specifically, the cavity volume of a pre-forging mold being 1%-2% larger than the total volume of the blank; and finish forging is carried out, specifically, the cavity volume of a finish forging mold is 1%-2% larger than the total volume of the blank. By precisely blanking and strictly controlling relationships of the cavity volumes of the forming molds of material aggregating, pre-forging and finish forging and the volume of the blank, the double-shaft-coupling tooth blank with the deep blind holes can be directly forged by combining the special molds of material aggregating, pre-forging and finish forging, fins are avoided, working procedures are reduced, and the material cost and the machining cost are reduced.

Description

technical field [0001] The invention relates to the technical field of forging technology, in particular to a vertical forging method for a double-coupling gear blank. Background technique [0002] like figure 1 The traditional manufacturing method of the double-coupling gear with deep blind holes shown above is to use horizontal forging first, but horizontal forging cannot forge deep blind holes, and can only forge full-core double-coupling gear blanks; forging After completion, the deep blind hole is completed by machining. In addition, horizontal forging also needs trimming, which increases the cost of a trimming die, resulting in a long process flow, high material costs, and high subsequent machining costs. Contents of the invention [0003] The present invention aims to provide a vertical forging process for double-coupling gear blanks, which can directly forge deep blind holes, avoid flashing, reduce procedures, and save material costs and machining costs. [0004...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21K1/30B21J13/02B21J13/03B21J5/02B21J5/10B21J13/14B21J1/06
CPCB21J1/06B21J5/025B21J5/10B21J13/02B21J13/03B21J13/14B21K1/30
Inventor 周亚夫吴克成杨柳
Owner 四川弘信能源装备制造有限公司
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