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K3 brake beam end head forging process

A process and forging technology, used in railway car body parts, transportation and packaging, vehicle parts, etc., can solve the problems of folding, die forging and forging, and achieve low manufacturing costs, high precision forgings, and stable quality. Effect

Active Publication Date: 2019-05-28
ZHUZHOU TIANLI FORGING IND
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies and defects mentioned in the above background technology, provide a K3 brake beam end forging process, solve the problems of die forging and forging forming, such as insufficient filling and folding, and ensure product quality

Method used

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  • K3 brake beam end head forging process
  • K3 brake beam end head forging process
  • K3 brake beam end head forging process

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Embodiment Construction

[0025] In order to facilitate the understanding of the present invention, the present invention will be described in more detail below in conjunction with the accompanying drawings and preferred embodiments, but the protection scope of the present invention is not limited to the following specific embodiments.

[0026] Unless otherwise defined, all technical terms used hereinafter have the same meanings as commonly understood by those skilled in the art. The terminology used herein is only for the purpose of describing specific embodiments, and is not intended to limit the protection scope of the present invention.

[0027] The forging process of the end of the K3 brake beam for a freight vehicle in a specific embodiment of the present invention includes the following steps: blanking → blank heating → free forging blank → die forging → edge trimming. Specifically include:

[0028] (1) Select raw materials with appropriate specifications. The material used in this embodiment i...

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Abstract

The invention discloses a K3 brake beam end head forging process. The K3 brake beam end head forging process comprises the following steps: heating blank, freely forging blank into prefabricated blank, and die-forging the prefabricated blank until a mould cavity of a mould is filled up with the blank, wherein the prefabricated blank is provided with a top surface, a bottom surface and five side surfaces, the five side surfaces comprise a first side surface, a fourth side surface, a second side surface, a third side surface and a fifth side surface which are sequentially connected, the first side surface and the second side surface are opposite and are arranged in a width direction, the third side surface and the fourth side surface are opposite and are arranged in a length direction, the fifth side surface is an arc-shaped surface, and is smoothly transited to the end part border of the third side surface from the end part border of the first side surface. The K3 brake beam end head forging process solves the problems that a K3 brake beam end head is sufficiently formed, is folded and the like, has a material utilization rate of 86.2% or higher, has a product qualification rate of99% or higher, is high in forging precision and is stable in quality.

Description

technical field [0001] The invention relates to a forging forming method for a brake beam end of a freight vehicle, belonging to the technical field of forging. Background technique [0002] The existing freight vehicle accessories K3 brake beam end, its products such as figure 1 As shown, the forging weighs 8.8Kg and the material is 30#. K3 brake beam end products except for two parts of section A on the left side Φ55×100mm and section B on the lower right corner Φ50×63mm, the other surfaces are non-processed surfaces. If free forging is used, the material utilization rate is low, the subsequent machining efficiency is low, and the production cost is high. Therefore, it is necessary to use die forging. [0003] However, the difficulty of die forging lies in that the area ratio of the large section to the small section is 2.8 times because the product is a special-shaped piece and the section shape changes drastically in the length direction. When using simple round bill...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21K7/12
Inventor 陈江张洞川
Owner ZHUZHOU TIANLI FORGING IND
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