Thermal treatment process for thin-wall aluminum alloy component

A technology for processing aluminum alloy parts and parts, which is applied in the field of mechanical processing and can solve problems such as stress and deformation

Inactive Publication Date: 2016-03-09
CHANGSHU MIAOQUAN COMPRESSOR ACCESSORIES
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the above needs, the present invention provides a heat treatment process for thin-walled aluminum alloy parts, which effectively solves the stress deformation problem of thin-walled aluminum alloy parts, not only stabilizes the processing size, but also ensures the dimensional tolerance and Geometric tolerances meet technical requirements

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  • Thermal treatment process for thin-wall aluminum alloy component

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Effect test

Embodiment 1

[0018] The specific processing method is as follows:

[0019] a) Solution and aging high-temperature heat treatment before part processing, using 460 ° C, 100 min solution + aging heat treatment, through discontinuous recrystallization to form fine grains, and change the grain morphology and composition phase distribution, to improve the short transverse direction The purpose of improving the plasticity and toughness of aluminum alloy parts, thereby improving the machinability of the material structure of aluminum alloy parts.

[0020] b) Aging heat treatment after rough machining of parts. Due to the large machining allowance and fast tool wear in the rough machining stage of the part, the machining stress of the part is the largest and the structure is unstable. Therefore, after the rough machining of the part removes the large cutting allowance , for the second time 170 ℃, 8h aging heat treatment to eliminate processing stress, increase the service life of the tool, and imp...

Embodiment 2

[0024] The specific processing method is as follows:

[0025] a) Solution and aging high-temperature heat treatment before parts processing, using 470 ° C, 90 min solution + aging heat treatment, through discontinuous recrystallization to form fine grains, and change the grain morphology and composition phase distribution, to improve the short transverse direction The purpose of improving the plasticity and toughness of aluminum alloy parts, thereby improving the machinability of the material structure of aluminum alloy parts.

[0026] b) Aging heat treatment after rough machining of parts. Due to the large machining allowance and fast tool wear in the rough machining stage of the part, the machining stress of the part is the largest and the structure is unstable. Therefore, after the rough machining of the part removes the large cutting allowance , for the second 180 ℃, 7h aging heat treatment to eliminate processing stress, increase the service life of the tool, and improve ...

Embodiment 3

[0030] The specific processing method is as follows:

[0031] a) Solution and aging high-temperature heat treatment before part processing, using 480 ° C, 80 min solution + aging heat treatment, through discontinuous recrystallization to form fine grains, and change the grain morphology and composition phase distribution, to improve the short transverse direction The purpose of improving the plasticity and toughness of aluminum alloy parts, thereby improving the machinability of the material structure of aluminum alloy parts.

[0032] b) Aging heat treatment after rough machining of parts. Due to the large machining allowance and fast tool wear in the rough machining stage of the part, the machining stress of the part is the largest and the structure is unstable. Therefore, after the rough machining of the part removes the large cutting allowance , for the second 190 ℃, 6h aging heat treatment to eliminate processing stress, increase tool life, improve the quality of surface p...

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Abstract

The invention provides a thermal treatment process for a thin-wall aluminum alloy component. The thermal treatment process comprises the following steps: a) carrying out solid solution treatment and ageing high-temperature thermal treatment before component processing; b) carrying out ageing thermal treatment after component rough processing; c) carrying out crystallization ageing thermal treatment after component semifinishing; and d) carrying out positive-negative-temperature circulating thermal treatment after component finishing. The invention discloses the thermal treatment process for the thin-wall aluminum alloy component. The thermal treatment process effectively solves the stress deformation problem of thin-wall aluminum alloy component cutting processing, not only stabilizes the processing dimension, but also guarantees that component dimension tolerance and component geometric tolerance reach technical requirements.

Description

technical field [0001] The invention relates to a heat treatment process, in particular to a heat treatment process for thin-walled aluminum alloy parts, and belongs to the technical field of mechanical processing. Background technique [0002] In machining, the processing of thin-walled aluminum alloy parts is more common. However, there are many difficulties in the processing of thin-walled aluminum alloy parts. The main manifestations are: the structure is prone to fission under high temperature, and under high temperature and high pressure, it is easy to produce sticking phenomenon during cutting, forming built-up edge; easy to deform during cutting, Affects the dimensional tolerance and geometric tolerance of the part; the residual stress after cutting is large, resulting in the out-of-tolerance of the size and shape, and the part is scrapped; the dimensional stability is poor, and the residual stress retained by the material will be released under the change of the amb...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22F1/04
CPCC22F1/04
Inventor 顾建青
Owner CHANGSHU MIAOQUAN COMPRESSOR ACCESSORIES
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