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Automobile axle shaft sleeve four-step shunt-forging forming process

An automobile half shaft and forging molding technology, which is applied to engine components, mechanical equipment and other directions, can solve the problems of low material utilization rate, high manufacturing cost, low production efficiency, etc., and achieves simple molding method, reduced equipment investment, and efficient manufacturing efficiency. Effect

Inactive Publication Date: 2017-10-24
南京锦冠汽车零部件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of using traditional technology to manufacture half-shaft sleeves with such shape features are low material utilization (less than 35%), low production efficiency, and high manufacturing costs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A four-step split forging forming process for automobile half-shaft sleeves includes the following steps:

[0024] The first step: heating the blank, the initial forging temperature is 1100.

[0025] Step 2: Set the first overflow port on the forging profile die, brush the lubricant on the inner wall of the forging profile die, put the heated ingredients into the forging profile die, start the hydraulic press for the forging profile process to obtain Pressed forgings. Among them, the maximum forging force required for the forging pressing process is 4800KN, the contact stroke of the forging pressing die and the forging is 170mm, the average speed is 50mm / s, and the contact time between the upsetting forging die and the forging is 3.4s.

[0026] The third step is to set a second overflow port on the die for the forging and upsetting process, brush the lubricant on the inner wall of the forging and forging die, put the press forgings into the upsetting and forging die, and star...

Embodiment 2

[0031] The difference between this embodiment and embodiment 1 is that a four-step split forging forming process for automobile half-shaft sleeves includes the following steps:

[0032] The first step: heating the billet, the initial forging temperature is 1150 o C.

[0033] Step 2: Set the first overflow port on the forging profile die, brush the lubricant on the inner wall of the forging profile die, put the heated ingredients into the forging profile die, start the hydraulic press for the forging profile process to obtain Pressed forgings. Among them, the maximum forging force required for the forging pressing process is 4750KN, the contact stroke of the forging pressing die and the forging is 160mm, the average speed is 64mm / s, and the contact time between the upsetting forging die and the forging is 2.5s.

[0034] The third step is to set a second overflow port on the die for the forging and upsetting process, brush the lubricant on the inner wall of the forging and forging die...

Embodiment 3

[0038] The difference between this embodiment and Embodiments 1 and 2 is that a four-step split forging process for automotive half-shaft sleeves includes the following steps:

[0039] The first step: heating the billet, the initial forging temperature is 1125 o C.

[0040] Step 2: Set the first overflow port on the forging profile die, brush the lubricant on the inner wall of the forging profile die, put the heated ingredients into the forging profile die, start the hydraulic press for the forging profile process to obtain Pressed forgings. Among them, the required maximum forging force for the forging pressing process is 4775KN, the contact stroke of the forging pressing die and the forging is 166mm, and the contact time between the upsetting forging die and the forging is 2.8s.

[0041] The third step is to set a second overflow port on the die for the forging and upsetting process, brush the lubricant on the inner wall of the forging and forging die, put the press forgings into ...

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PUM

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Abstract

The invention discloses an automobile axle shaft sleeve four-step shunt-forging forming process. Firstly, a blank is heated, a first overflow port is formed in a forging profiling die, the inner wall of the forging profiling die is brushed with a lubricating agent, heated prepared materials are added into the forging profiling die, a hydraulic machine is started to perform a forging profiling process, and a profiled forge piece is obtained; secondly, a second overflow port is formed in a forging and upset-extruding process die, the inner wall of the forging and upset-extruding die is brushed with a lubricating agent, the profiled forge piece is put in the forging and upset-extruding die, the hydraulic machine is started to perform a upset-extruding and forging process, and an upset-extruded forge piece is obtained; thirdly, forging of a shaft sleeve is completed through a primary forging and reverse-extruding process and secondary forging and reverse-extruding process. The automobile axle shaft sleeve four-step shunt-forging forming process is high in material utilization rate and production efficiency and low in manufacturing cost.

Description

Technical field [0001] The invention relates to a forging forming process of an automobile half-shaft sleeve, belonging to the field of automobile parts manufacturing. Background technique [0002] The axle sleeve is an important part of the automobile drive axle assembly. It is integrated with the drive axle housing to fix the axial relative position of the left and right drive wheels, and support the mass of the frame and each assembly on it together. When driving, it bears the road reaction force and moment transmitted by the wheels and transmits it to the frame through the suspension. Most of the half-shaft casing adopts an integral structure, that is, the hollow variable-diameter variable-section tubular body and the flange connecting plate are designed as an integral piece, and the forming process mostly adopts the integral die forging process. The disadvantages of using traditional technology to manufacture half-shaft sleeves with such shape characteristics are low materi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21K1/14B21J5/02B21J5/08
CPCB21K1/14B21J5/02B21J5/08
Inventor 林夏民
Owner 南京锦冠汽车零部件有限公司
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