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Semisolid process for manufacturing engine aluminum alloy cam shaft through radial forging strain provocation method

A strain-induced, aluminum alloy technology, used in engine components, mechanical equipment, metal processing equipment, etc., can solve the problem of inability to produce large-scale semi-solid billets in large quantities, large plastic deformation forming force, mechanical stirrer corrosion and other problems, to achieve the effects of good microstructure, reduced plastic forming force, and strong continuous production capacity

Inactive Publication Date: 2015-05-20
XI AN JIAOTONG UNIV
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Problems solved by technology

However, the conventional preparation methods have their own shortcomings: for the mechanical stirring method, the high temperature has a serious corrosion effect on the mechanical stirrer, resulting in impure slurry
However, when these methods prepare large blanks, the forming force required for large plastic deformation is too large, and it is difficult to realize with existing equipment.
Therefore, it is not possible to produce large-scale semi-solid billets in large quantities

Method used

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  • Semisolid process for manufacturing engine aluminum alloy cam shaft through radial forging strain provocation method
  • Semisolid process for manufacturing engine aluminum alloy cam shaft through radial forging strain provocation method

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Embodiment Construction

[0018] The present invention will be further described in detail below in conjunction with the accompanying drawings, taking an aluminum alloy rod of Φ100 mm as an example.

[0019] refer to figure 1 and figure 2 , a semi-solid process for preparing an engine aluminum alloy camshaft by a radial forging strain induction method, including the following steps:

[0020] 1) Preheat the aluminum alloy bar, heat the Φ100 aluminum alloy bar to 250-350°C with the furnace, and keep it warm for 60-70 minutes to ensure that the entire billet is heated through;

[0021] 2) Radial forging of aluminum alloy rods, that is, the preheated aluminum alloy rods are clamped by the manipulator and fed in the axial direction. The radial forging machine distributes four hammers symmetrically around the blank, and carries out high-frequency high-frequency forging along the radial direction of the blank. Reciprocating forging makes the billet elongate and thinner under the condition of multi-head spi...

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Abstract

Disclosed is a semisolid process for manufacturing an engine aluminum alloy cam shaft through a radial forging strain provocation method. Aluminum alloy rod materials are preheated and then forged in the radial direction, a blank is remelted again after radial forging, the aluminum alloy cam shaft is extruded and cast, and finally follow-up treatment is carried out on the aluminum alloy cam shaft in the radial direction. Through the process, the uniform aluminum alloy semisolid blank without micro defects can be manufactured, the aluminum alloy cam shaft which has a few micro structure defects and is good in mechanical performance can be formed, and the process is simple and easy to operate.

Description

technical field [0001] The invention belongs to the technical field of metal semi-solid processing and forming, in particular to a semi-solid process for preparing an engine aluminum alloy camshaft by a radial forging strain induction method. Background technique [0002] In recent years, with the continuous improvement of people's requirements for the living environment, energy saving and emission reduction has become a new topic. The important means of energy saving and emission reduction is to realize the lightweight of automobiles in order to reduce the emission of automobile exhaust. Therefore, on the premise of not affecting the performance of the parts, the processing of the parts is simplified as much as possible, the weight is reduced, and the use of materials is more reasonable. Lightweight specifically includes material lightweight, process lightweight and structural lightweight. Lightweight materials mainly refer to replacing steel, copper, etc. with lightweigh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21K1/12B21J5/00B21J5/06B22D18/02B23P15/14
CPCB21J5/002B21J5/06B21K1/12B22D18/02B23P15/14
Inventor 赵升吨张晨阳王永飞韩晓兰李靖祥
Owner XI AN JIAOTONG UNIV
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