A kind of forging forming method of hook forging

A forging forming and forging technology, which is applied in the forging field of precisely controlled bending and forming of hook-shaped forgings, can solve the problems of reduced service life, damage to forging fiber streamlines, waste of raw materials, etc., to reduce fire times, improve comprehensive performance, and fiber streamlined full effect

Active Publication Date: 2021-02-05
SHAANXI HEYE SPECIAL STEEL TOOL
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, hook forgings are generally forged as a whole, and then the final shape is obtained by mechanical processing, which not only seriously damages the fiber streamline of the forging, greatly reducing its service life, but also causes a waste of raw materials due to the large margin of forging

Method used

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  • A kind of forging forming method of hook forging
  • A kind of forging forming method of hook forging
  • A kind of forging forming method of hook forging

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Embodiment Construction

[0029] Below in conjunction with accompanying drawing, the present invention is described in further detail by example:

[0030] Forging material: 30CrMnSiNi2A, quantity: 1 piece, blanking specification: Φ120mm×205mm, blanking weight 17.9kg.

[0031] Step 1: Forging billet design

[0032] According to the shape and size of the forging, the total length of the forging blank 1 is designed to be 290mm, the thickness of the forging blank body is 75mm, and the total width is 100mm. The end of the hypotenuse 12 of the forging blank corresponding to the hook part is 50mm wide, the angle of the hypotenuse is 20°, the fillet at the junction between the hypotenuse and the width is set to R50, and the junction between the boss 11 and the body is rounded for R25.

[0033] Step 2: Membrane production

[0034] Membrane 1: The lower membrane 3 is a bending mold with a certain angle, the base is a cuboid, the length is 400mm, the height is 200mm, and the thickness is 100mm. The diameter of...

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Abstract

The invention belongs to a forging method, and relates to a forging method for precisely controlling the bending and forming of a hook-shaped forging. Through forging billet design, free forging and membrane bending forging are combined, the designed forging billet is placed on the open end surface of the upper end of the die membrane, and the forging billet is bent and forged by pressing down the forging equipment to drive the pressure roller, and then the forging billet is placed On the open end face of the second upper end of the membrane, the positioning punch is driven by the forging equipment to bend the forging billet for a second step. When the forging billet touches the bottom surface of the membrane cavity, the bending forging is completed; the size of the base of the membrane and the size of the cavity Determined according to the shape and size of the bent forging. Through the above-mentioned design of the forging blank and the use of the special film, the precise bending and forming of the hook forging is completed, which ensures the integrity of the forging fiber streamline, reduces the number of fires for free forging, and improves the comprehensive performance of the forging.

Description

technical field [0001] The invention belongs to a forging method, and relates to a forging method for precisely controlling the bending and forming of a hook-shaped forging Background technique [0002] With the development of modern industry, forging plays a vital role in the aerospace field and the national production economy, and its performance requirements are getting higher and higher. Hook forgings are an indispensable part of structural parts, and their traditional forming methods often restrict their comprehensive performance and service life. At present, hook forgings are generally forged as a whole, and then the final shape is obtained by mechanical processing, which not only seriously damages the fiber streamline of the forging, greatly reducing its service life, but also causes a waste of raw materials due to the large margin of forging . [0003] According to the characteristics of hook-shaped forgings, the present invention considers the design of forging bl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21J5/02B21J13/02
CPCB21J5/02B21J13/02
Inventor 王世超马静蒲思洪段文华丁学生蒋立于杰周大云
Owner SHAANXI HEYE SPECIAL STEEL TOOL
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