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Integral hot punching technology for inner hole and peripheral small holes of forged component

A forging and integral technology, applied in the field of forging, can solve the problems of difficult integral forging or punching, many processes, difficult to remove materials, etc., to achieve the effect of facilitating promotion and utilization, meeting process requirements, and reducing production costs

Inactive Publication Date: 2015-11-25
安徽众鑫科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, in the forging field, due to the different shapes of various forging spare parts, the forging processes used are also different. Some forgings on the market include an inner hole and several outer small holes surrounding the inner hole, but the inner hole It is difficult to forge or punch out the small holes evenly distributed around the forging process. The main reason is that it will be deformed after hot punching, and it is easy to stick to the mold and difficult to remove the material. Therefore, in the domestic forging field, this product is currently The process is to forge the forging first, then heat punch the inner hole in the middle, and finally mill out the surrounding small holes with a milling machine or drill out the surrounding small holes with a drilling machine for special fixtures. This process is feasible, but there are many processes and costs. High, long cycle, low efficiency

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The overall hot stamping process of the inner hole and the surrounding small holes of the forging includes the following process steps:

[0019] ①, blanking: set the blanking weight of 1786g on the shearing machine, and the raw material specification is The tolerance is controlled within ±10g, the material is cut by the shearing machine, and then the material is cut and divided by the shearing machine.

[0020] ②. Heating: The intermediate frequency furnace is heated to 1000 ° C. The temperature should not be too high or too low. If the temperature is too high, the product will be overheated, and if the temperature is too low, the product will be insufficient;

[0021] ③Blank making: use 400T friction press to make the billet, and the diameter of the billet is smaller than the diameter of the mold cavity by 2mm;

[0022] ④ Forming: Forming with a 630T friction press, preheating the forging mold for 10 minutes before forming, and then putting the prepared billet into t...

Embodiment 2

[0029] The double oil tank forging hot stamping process is characterized in that it includes the following process steps:

[0030] ①, blanking: set the blanking weight of 2371g on the shearing machine, and the raw material specification is The tolerance is controlled within ±10g, the material is cut by the shearing machine, and then the material is cut and divided by the shearing machine.

[0031] ②. Heating: The intermediate frequency furnace is heated to 1100°C. The temperature should not be too high or too low. If the temperature is too high, the product will be overheated, and if the temperature is too low, the product will be insufficient;

[0032] ③Blank making: use 400T friction press to make the billet, and the diameter of the billet is 2.5mm smaller than the diameter of the mold cavity;

[0033] ④ Forming: Forming with a 630T friction press, preheating the forging mold for 13 minutes before forming, and then putting the prepared blank into the mold cavity for forgin...

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PUM

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Abstract

An integral hot punching technology for an inner hole and peripheral small holes of a forged component relates to the technical field of forging. The integral hot punching technology comprises the following technical steps: cutting a material, heating, making a blank, molding, integrally hot-punching holes, cutting edges, isothermally normalizing and shot-blasting. The integral hot punching technology has the benefits that the applicant carries out technical research and modification on the existing problems and determines to use an integral punch die to integrally punch the inner hole and the plurality of small holes, uniformly distributed on the periphery, of the forged component, the punched inner hole and small holes simultaneously meet technical requirements, the production technology is simplified, the production cost is saved, and the production efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of forging, in particular to an overall hot punching process for the inner hole of a forging and the surrounding small holes. Background technique [0002] At present, in the forging field, due to the different shapes of various forging spare parts, the forging processes used are also different. Some forgings on the market include an inner hole and several outer small holes surrounding the inner hole, but the inner hole It is difficult to forge or punch out the small holes evenly distributed around the forging process. The main reason is that it will be deformed after hot punching, and it is easy to stick to the mold and difficult to remove the material. Therefore, in the domestic forging field, this product is currently The process is to forge the forging first, then heat punch the inner hole in the middle, and finally mill out the surrounding small holes with a milling machine or drill out the surrounding ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00B21J5/02B21D28/24
CPCB23P15/00B21D28/24B21J5/02
Inventor 张锦荣黎成玉汤志清
Owner 安徽众鑫科技股份有限公司
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