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Forging process for buffer shell and forging die applying to forging process

A buffer and shell technology, applied in the field of forging dies, can solve the problems of high cost and difficult forging.

Active Publication Date: 2020-02-21
济南鸿奥机械配件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The above-mentioned existing technical solutions have the following defects: since both ends of the existing shell need to be processed, forging is relatively difficult, so casting is usually used for production, and the cost of casting is high

Method used

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  • Forging process for buffer shell and forging die applying to forging process
  • Forging process for buffer shell and forging die applying to forging process
  • Forging process for buffer shell and forging die applying to forging process

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Embodiment Construction

[0047] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0048] refer to figure 2 , is a forging process of a buffer housing disclosed by the present invention, comprising the following steps:

[0049] Step 1: Electroslag remelting, the steel ingot is placed in an electroslag furnace for remelting, so that the electroslag is remelted into an electroslag ingot. Electroslag remelted steel has high purity, low sulfur content, less non-metallic inclusions, smooth surface of steel ingot, clean, uniform and dense, uniform metallographic structure and chemical composition, so the structural strength of the material is higher;

[0050] Step 2: Billet opening, using an electro-hydraulic hammer to forge the electro-slag ingot, heating the electro-slag ingot to above 800°C before billet opening, and forming a cylindrical bar under the impact of the electro-hydraulic hammer;

[0051] Step 3: Cutting, first annealing the ori...

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Abstract

The invention relates to the technical field of buffer processing, in particular to a forging process for a buffer shell. The forging process comprises the following steps that step 1, re-melting of electro slag; step 2, cogging; step 3, cutting; step 4, free forging; step 5, positive die forging; step 6, negative die forging; step 7, turning; step 8, drilling; step 9, spheroidizing and annealing;and step 10, quenching, wherein in the step 5, die forging of the end, away from a mounting plate, of the shell is conducted through a die forging die, and in the step 6, die forging of one end of the mounting plate of the shell is conducted through a die forging die. By means of the forging process, the forging difficulty of the shell is reduced through the unique process and a forging die, andthe effect of reducing of the production costs is achieved by replacing casting of the production of the shell with forging.

Description

technical field [0001] The invention relates to the technical field of buffer processing, in particular to a forging process of a buffer shell and a forging die used in the process. Background technique [0002] Buffers used in railway vehicles are used to moderate longitudinal shocks and vibrations caused by changes in traction force of locomotives during operation or collisions between vehicles during starting, braking and shunting operations. The buffer has the function of dissipating the impact and vibration between vehicles, thereby reducing the damage to the structure of the vehicle body and the loaded goods. The working principle of the buffer is to moderate the impact force by compressing the elastic element, and at the same time absorb the impact energy by friction and damping during the deformation process of the elastic element. The buffer includes a shell and a buffer mechanism installed in the shell. [0003] Existing snubber housings (such as figure 1 shown)...

Claims

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Application Information

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IPC IPC(8): B21J5/02B21J5/00B21J5/06B21J1/06B21J13/02B21J13/03B23P23/06
CPCB21J5/002B21J5/008B21J5/02B21J5/06B21J13/02B21J13/03B23P23/06
Inventor 翟风肖翟道忠曹玉庆
Owner 济南鸿奥机械配件有限公司
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