Manufacturing method and manufacturing tooling for T-type forgings

A manufacturing method and forming tooling technology, applied in the direction of manufacturing tools, forging/pressing/hammer devices, forging/pressing/hammering machinery, etc., can solve the problems of poor dimensional stability of billets, high labor intensity, slow production speed, etc., to achieve Improve product consistency and reliability, reduce operational difficulty, and improve production efficiency

Inactive Publication Date: 2017-01-25
COMAC +1
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  • Claims
  • Application Information

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Problems solved by technology

One is to directly forge the billet with the bar material, and die forging to form it, because the forgings are all made of free forging billets, and the forgings have a lot of dressing, and the margin of the dressing should be considered during blanking. Workers’ skills and coordination between workers are high, labor intensity is high, and the dimensional stability of the billet is poor. Poor reliability and low efficiency

Method used

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  • Manufacturing method and manufacturing tooling for T-type forgings
  • Manufacturing method and manufacturing tooling for T-type forgings
  • Manufacturing method and manufacturing tooling for T-type forgings

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[0037] The present invention will be further described below in conjunction with the drawings and embodiments

[0038] As an embodiment, the method of the present invention can be used to manufacture a ‘T’ forging on an aircraft landing gear, such as Figure 1a As shown in -1d, the method involves four stages and four special toolings 1 (and 1'), 2, 3, 4 corresponding to the four stages. These toolings 1 (and 1'), 2, 3, 4 The shape of the lower mold 1a (and 1'a), 2a, 3a, 4a, see Figure 2a -2d. These toolings represent material distribution tooling 1 and 1', arm preforming tooling 2, arm forming tooling 3, and rod forming tooling 4. Among them, material distribution tooling 1 and 1'include aggregate tooling 1 and flattening tooling 1' . Figure 1a -1d shows the side views of stages 1 to 4 and corresponding tooling 1, 1', 2, 3, 4 respectively. Tooling 1 includes upper mold 1b and lower mold 1a, and tooling 1'includes upper mold 1'b and lower mold 1'a, tooling 2 includes upper mold ...

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Abstract

The invention relates to a manufacturing method and a manufacturing tooling for T-type forgings. The invention provides a T-type forging manufacturing method, comprising the steps of material distribution and molding. In the material segregation step, the material distribution tooling is used to forge rod-shaped blanks for formation of material distribution prefabricated parts. After upsetting, part of the rod-shaped blanks can be treated as arm blanks of the T-type forgings while the rest of the rod-shaped blanks may be used as rod blanks. The molding step comprises the steps of arm molding, heating the material distribution prefabricated parts, forging the material distribution prefabricated parts with arm molding tooling and rolling the arm blanks to form a predetermined shape of the arm so that an arc-shaped transitional surface may be formed between the arm and the rod blanks to form an arm molding prefabricated part. The invention further provides a tooling for manufacturing T-type forgings, comprising material distribution tooling and arm molding tooling, whereinthe material distribution tooling comprises material gathering tooling and flattening tooling.

Description

technical field [0001] The present invention relates to a manufacturing method and a manufacturing tooling of a 'T' type forging, in particular to a manufacturing method of an upper arm of a 'T' type forging. Background technique [0002] In the manufacturing field of aviation landing gear products, due to the safety of product use, there are high requirements for the strength, grain flow line and forging process of the forgings of landing gear products. [0003] The 'T' type forging used on the landing gear of the aircraft includes a head (ie arm) and a stem. It is difficult to obtain the required length of the head by the method of thickening the leaky plate and flattening the head. [0004] Therefore, in a conventional manufacturing process, the following manner is usually adopted. One is to directly forge the billet with the bar material, and die forging to form it, because the forgings are all made of free forging billets, and the forgings have a lot of dressing, and ...

Claims

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Application Information

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IPC IPC(8): B21J5/02B21J5/00B21J13/02B21K1/76
CPCB21J5/02B21J5/002B21J13/02B21K1/766
Inventor 肖凯曾德涛吴秋平罗恒军谢静
Owner COMAC
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