Forging die and die forging technology for brake disc hub of high speed train

A technology for high-speed trains and brake discs, applied in the field of forging, can solve the problems of low forming precision of forgings, difficult positioning of preforms, high equipment requirements, etc., and achieve high production efficiency, avoid difficult positioning, and high forming precision.

Inactive Publication Date: 2017-05-17
辽宁银捷装备科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with the traditional free forging method, although it can greatly reduce the machining allowance of the blank forging of the disc hub and shorten the production cycle of the disc hub

Method used

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  • Forging die and die forging technology for brake disc hub of high speed train
  • Forging die and die forging technology for brake disc hub of high speed train
  • Forging die and die forging technology for brake disc hub of high speed train

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Embodiment Construction

[0047] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings, and the described embodiments are only a part of the embodiments of the present invention, not all of them.

[0048] Such as Figure 1-4As shown, a high-speed train brake disc hub forging die includes pre-forging upper die (1), pre-forging lower die (2), final forging upper die (3), final forging lower die (4), pre-forging After the upper die (1) and the pre-forging lower die (2) are closed, the pre-forging die chamber is formed, and the final forging upper die (3) and the final forging lower die (4) are closed to form the final forging die chamber, and the pre-forging upper die (1 ) is provided with 2 upper guide through holes (5) with symmetrical positions, and the pre-forging lower die (2) is provided with 2 lower guide through holes (6) corresponding to the pre-forging upper die (1). After the mold (1) and the pre-forging lo...

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Abstract

The invention discloses a forging die and a die forging technology for a brake disc hub of a high speed train. The forging die comprises a pre-forging upper die, a pre-forging lower die, a finish forging upper die and a finish forging lower die, and is structurally characterized in that each of the pre-forging upper die and the pre-forging lower die is provided with two guide through holes symmetrical in position; after being combined, the pre-forging upper die and the pre-forging lower die are located through long guide pillars; each of the finish forging upper die and the finish forging lower die is provided with two guide through holes symmetrical in position; and the finish forging upper die and the finish forging lower die are located through short guide pillars. The die forging technology comprises the steps of upsetting, pre-forging and finish forging, the entire process requires two-time firing, namely, firing during upsetting and pre-forging, and firing during finish forging, and in the finish forging step, a preformed blank is subjected to finish forging after being overturned by 180 degrees. According to the forging die, guide locating devices are arranged on the pre-forging dies and the finish forging dies, the pre-forging dies are not provided with tooth cavities, the finish forging dies are provided with tooth cavities, precise shaping of forge pieces is guaranteed, the requirement on equipment is reduced, and operation difficulty of equipment is reduced.

Description

technical field [0001] The invention belongs to the field of forging, in particular to a high-speed train brake disc hub forging die and die forging process. Background technique [0002] Brake disc hub is a key component of high-speed trains and plays an important role in the braking of high-speed trains. The shape of the disc hub part is a flange-like annular cylinder, and 9 tooth-shaped structures are arranged at the flange end for connecting the brake disc. The wall of the forging is thin, and the teeth are difficult to form. Moreover, due to its special working environment, extremely high requirements are placed on the structure and performance of forgings, making it difficult to manufacture. At present, almost all such forgings in my country rely on imports, which restricts the development of my country's high-speed rail industry. [0003] CN 202114202 U discloses a high-speed train brake disc hub forging die, which includes a pre-forging upper die, a pre-forging low...

Claims

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Application Information

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IPC IPC(8): B21J13/02B21J5/02B21K7/14
CPCB21J5/02B21J13/02B21K7/14
Inventor 谭叶林张功让王建民王兆和张帆孙起立李英楠
Owner 辽宁银捷装备科技股份有限公司
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