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Forging method of large scale conical shell

A conical cylinder, large-scale technology, applied in the direction of metal processing equipment, etc., can solve the problems of large machining allowance and high manufacturing cost of forgings, and achieve the effect of simple steps, convenient and fast performance

Inactive Publication Date: 2008-06-18
SHANGHAI HEAVY MACHINERY PLANT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The forging produced by this method has many shortcomings such as large machining allowance and high manufacturing cost.

Method used

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  • Forging method of large scale conical shell
  • Forging method of large scale conical shell
  • Forging method of large scale conical shell

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Experimental program
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Effect test

Embodiment Construction

[0015] Each step of the forging method of the large-scale tapered cylinder body of the present invention can refer to Figure 1 to Figure 6 As shown, it includes the following steps:

[0016] (1) Upsetting, processing the blank from a columnar shape 1 into a round cake shape 2, such as figure 1 shown;

[0017] (2) Punch out a circular hole 3 in the center of the round cake-shaped blank 2, such as figure 2 shown;

[0018] (3) A rotating shaft 4 is passed through the round hole of the blank, and the rotating shaft drives the blank to rotate, and at the same time, pressure is applied to the blank from the outer side of the blank, and the blank is processed into a cylindrical shape 5, such as image 3 shown;

[0019] (4) The rotating shaft drives the blank to rotate, and at the same time, pressure is applied to the blank from the outside of the blank, and the outside of the cylindrical blank is processed into a stepped blank 6, such as Figure 4 shown;

[0020] (5) The rota...

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Abstract

The utility model discloses a forging method of large conical cylinder, comprising the following steps: the first step is upsetting, process the billet material from the original columnar shape into a cake-like shape; a circular hole is pinched out at the center of the cake-shape billet material; after that, put a rotating shaft through the circular hole of the billet material; the rotating shaft drives the billet material to rotate, meanwhile, external pressing force is given on the outer side face of the billet material, making the billet material into a cylinder shape; the rotating shaft drives the billet material to rotate, meanwhile, external pressing force is given on different segment of the outer side face of the billet material, making the outer side of the billet material into a step shape; then the rotating shaft drives the billet material to rotate, and meanwhile, external pressing force is given on the highest step of the step shape billet material, making the step shape billet material into a rudiment shape of a big conical cylinder; finally, trim the rudiment shape of the large conical cylinder, and a large conical cylinder is obtained. The forging method of large conical cylinder provided by the invention has the advantages that the manufacturing steps are simple, and a large conical cylinder with good performance can be made conveniently and rapidly.

Description

technical field [0001] The invention relates to a forging method of a large conical cylinder. Background technique [0002] The large conical cylinder is an important part of nuclear power equipment and chemical equipment. It is a conical cylinder with different diameters at both ends and the same wall thickness. This kind of part is extremely inconvenient to process due to its large size and special requirements for strength and materials. In the prior art, the whole method without taper has been used for forging. The forging produced by this method has many shortcomings such as large machining allowance and high manufacturing cost. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a forging method for a large conical cylinder, which can conveniently and quickly manufacture the large conical cylinder. [0004] In order to solve the above-mentioned technical problems, the technical scheme of the forging method o...

Claims

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Application Information

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IPC IPC(8): B21J5/06B21J5/12B21J1/06C21D1/30
Inventor 金跃进董屹
Owner SHANGHAI HEAVY MACHINERY PLANT
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