Free forging process for large cross forged pieces

A cross-shaped, forging technology, applied in the field of forging and forming of large forgings, can solve the problems of inability to guarantee, reduced mechanical properties, and increased machining time.

Active Publication Date: 2015-03-25
TONGYU HEAVY IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] (1) Waste a lot of raw materials;
[0005] (2) Machining time increases and production efficiency is low;
[0006] (3) It is impossible to guarantee that the forgings proposed in the design should ensure t

Method used

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  • Free forging process for large cross forged pieces
  • Free forging process for large cross forged pieces
  • Free forging process for large cross forged pieces

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Embodiment Construction

[0027] Such as figure 1 as well as Figure 4 to Figure 7 As shown, a large-scale cross-shaped forging free forging process, the specific steps are as follows,

[0028] 1) Forge the steel ingot into a square forging billet (such as Figure 5 shown), the eight sides of the square forging billet are the first side, the second side, the third side, the fourth side, the fifth side, the sixth side, the seventh side and the eighth side;

[0029] 2) Two anvils (1 and 2) are used to forge the square forging billet, such as Figure 7 As shown, each anvil includes three working surfaces, and the three working surfaces are connected in sequence to form a "︺" shape arrangement. The two working surfaces on both sides are perpendicular to each other, and the dimensions of the three working surfaces in the thickness direction of the anvil Greater than the thickness of the octagonal forging billet,

[0030] Such as Figure 6 As shown, two anvils respectively forge the first side and the f...

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Abstract

The invention provides a free forging process for large cross forged pieces. The process includes the specific steps that first, steel ingots are forced into eight-square-face forged blanks, and the eight side faces of each eight-square-face forged blank are the first side face, the second side face, the third side face, the fourth side face, the fifth side face, the sixth side face, the seventh side face and the eighth side face in sequence; second, two anvil blocks are used for forging and pressing the eight-square-face forged blanks, each anvil block comprises three working faces which are connected in sequence to be arranged in the shape of ')' as a whole, every two working faces located on the two sides are perpendicular to each other, the two anvil blocks are used for forging and pressing the first side faces and the fifth side faces of the eight-square-face forged blanks respectively so that the first side faces and the fifth side faces can be concave downwards to form notches shaped like ')', the forged pieces penetrate through the notches shaped like ')' in the thickness direction, the two anvil blocks are used for forging and pressing the third side faces and the seventh side faces of the eight-square-face forged blanks respectively so that the third side faces and the seventh side faces can be concave downwards to form notches shaped like ')', and the forged pieces penetrate through the notches shaped like ')' in the thickness direction; third, the forged pieces are subjected to finishing so that forging can be completed.

Description

technical field [0001] The invention belongs to the technical field of forging and forming of large forgings, and in particular relates to a free forging process of large cross-shaped forgings. Background technique [0002] figure 1 The structural diagram of a large cross-shaped forging is shown. The biggest feature of this type of forging is that the forging is in the shape of a cross as a whole, and there are extensions of the same or similar size in four directions. According to experience, at present, the free forging process of such forgings at home and abroad usually adopts the overall wrapping method to forge such forgings into octagonal forging blanks (such as figure 2 ) or square forging (such as image 3 ), and finally the forging is machined into the shape of the part by machining. [0003] For the production of such parts, the disadvantages of this forging process are as follows: [0004] (1) Waste a lot of raw materials; [0005] (2) Machining time ...

Claims

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Application Information

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IPC IPC(8): B21J5/00
Inventor 司兴奎刘殿山曹智勇冯永虎孙建新李威
Owner TONGYU HEAVY IND
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