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Manufacturing method of cross forging

A manufacturing method, cross-shaped technology, applied in the field of manufacturing special-shaped forgings, can solve the problems of unqualified sampling performance, increased production costs, unqualified flaw detection, etc., and achieve the effect of qualified sampling, tight internal structure, and qualified flaw detection

Active Publication Date: 2011-12-21
ZHANGJIAGANG HAIGUO HEAVY FORGING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its shortcoming is: because the thickness of octagonal billet 6 is relatively thick, when adopting press machine to compact, the inside of octagonal billet 6 cannot be compacted completely, easily cause body sampling performance unqualified and flaw detection easily unqualified; In addition, to manufacture To obtain cross-shaped forgings, most of the blanks must be removed, and the material waste is serious, which greatly increases the production cost

Method used

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  • Manufacturing method of cross forging
  • Manufacturing method of cross forging
  • Manufacturing method of cross forging

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A method for manufacturing a cross-shaped forging, comprising the steps of:

[0022] a), pressing square: using a press to press out a square blank 1;

[0023] b), chamfering: use a press to press out chamfering at the four corners of the square blank 1;

[0024] c), indentation: place the round bar on the center line of the four chamfers of the blank 1, and then use a press to press out the circular groove;

[0025] d), press the small angle: such as figure 2 As shown, using the small triangular knife 2, first align the blade of the small triangular knife 2 with the circular groove, and make the back of the small triangular knife 2 parallel to the chamfering surface of the blank, and then use a press to press the small triangular knife 2 to place Each chamfer of the blank 1 is respectively pressed with a small triangular groove, wherein the length of the right-angled side of the small triangular knife 2 is 0.08 of the length of the cross-shaped forging to be manufac...

Embodiment 2

[0031] A method for manufacturing a cross-shaped forging, comprising the steps of:

[0032] a), pressing square: using a press to press out a square blank 1;

[0033] b), chamfering: use a press to press out chamfering at the four corners of the square blank 1;

[0034] c), indentation: place the round bar on the center line of the four chamfers of the blank 1, and then use a press to press out the circular groove;

[0035] d), press the small angle: such as figure 2 As shown, using the small triangular knife 2, first align the blade of the small triangular knife 2 with the circular groove, and make the back of the small triangular knife 2 parallel to the chamfering surface of the blank, and then use a press to press the small triangular knife 2 to place Each chamfer of the blank 1 is respectively pressed with a small triangular groove, wherein the length of the right-angled side of the small triangular knife 2 is 0.12 of the length of the cross-shaped forging to be manufac...

Embodiment 3

[0041] A method for manufacturing a cross-shaped forging, comprising the steps of:

[0042] a), pressing square: using a press to press out a square blank 1;

[0043] b), chamfering: use a press to press out chamfering at the four corners of the square blank 1;

[0044] c), indentation: place the round bar on the center line of the four chamfers of the blank 1, and then use a press to press out the circular groove;

[0045] d), press the small angle: such as figure 2 As shown, using the small triangular knife 2, first align the blade of the small triangular knife 2 with the circular groove, and make the back of the small triangular knife 2 parallel to the chamfering surface of the blank, and then use a press to press the small triangular knife 2 to place Each chamfer of the blank 1 is respectively pressed with a small triangular groove, wherein the length of the right-angled side of the small triangular knife 2 is 0.10 of the length of the cross-shaped forging to be manufac...

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Abstract

The invention relates to a manufacturing method of a cross-shaped forging piece. The manufacturing method comprises the following steps of: a) pressing into a square shape; b) chamfering; c) pressing into marks: pressing into a round groove at the central line position of four chamfers of a blank; d) pressing into small angles: aligning the edge of a small triangular knife to the round groove, then pressing out a small triangular groove at each chamfering position of the blank respectively by adopting a pressing machine, and setting the length of the right-angled edge of the small triangular knife to be 0.08-0.12 of that of the cross-shaped forging piece; e) pressing large angles: arranging a large triangular knife in the small triangular grooves, then pressing out a large triangular groove at each small triangular groove respectively by adopting the pressing machine, and setting the length of the right-angled edge of the large triangular knife to be 0.25-0.40 of that of the cross-shaped forging piece; f) pressing with anvils: respectively arranging an upper anvil and a lower anvil at the two corresponding large triangular grooves, and then carrying out anviling on four bosses of the blank in sequence by adopting the pressing machine, thus obtaining a cross-shaped forging piece blank; and g) shaping. The manufacturing method is applicable to manufacture of the cross-shaped forging piece.

Description

technical field [0001] The invention relates to a method for manufacturing a special-shaped forging, in particular to a method for manufacturing a cross-shaped forging. Background technique [0002] The structure of the cross-shaped forging is as follows figure 1 As shown, its shape is a cross. According to the current forging scheme, when manufacturing cross-shaped forgings, a press is usually used to press out such as Figure 5 The octagonal blank 6 is shown, and then the octagonal blank 6 is cut to produce a cross-shaped forging. Its shortcoming is: because the thickness of octagonal billet 6 is relatively thick, when adopting press machine to compact, the inside of octagonal billet 6 cannot be compacted completely, easily cause body sampling performance unqualified and flaw detection easily unqualified; In addition, to manufacture To obtain a cross-shaped forging, most of the blanks must be removed, and the material waste is serious, which greatly increases the produc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21K23/00B21J5/00
Inventor 盛雪华何晓崔立和
Owner ZHANGJIAGANG HAIGUO HEAVY FORGING
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