Method for machining mirror surface of aluminum alloy

A technology of mirror surface processing and aluminum alloy, which is applied in the field of aluminum alloy processing, can solve problems such as uneven thickness of the grinding and polishing surface, failure to achieve ultra-precision mirror processing, and easy scratches on the grinding and polishing surface, so as to achieve stable product quality and easy operation Convenience, the effect of achieving the ideal mirror effect

Active Publication Date: 2017-06-13
上海皋奋工业铝型材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the existing technology, the thickness of the grinding and polishing surface of aluminum alloy will be uneven, and defects such as scratches and particles are prone to appear on the grinding and polishing surface, which cannot reach ultra-precision mirror processing, which affects the quality of surface processing, and the processing efficiency is not high.

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  • Method for machining mirror surface of aluminum alloy
  • Method for machining mirror surface of aluminum alloy
  • Method for machining mirror surface of aluminum alloy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Such as figure 1 Shown, a kind of aluminum alloy mirror finishing method comprises the following steps:

[0030] a Rough grinding: place the aluminum alloy workpiece 4 to be ground on the grinding and polishing disc 1, use white corundum (F240#) for rough grinding, the rough grinding time is 1.5min, and the speed is 300r / min; after rough grinding, the surface roughness Reach Ra0.2;

[0031] b Rough polishing: place the roughly ground aluminum alloy workpiece 4 on the grinding and polishing disc 1, use the first abrasive paste for rough polishing, the grinding time is 10min, and the rotation speed is 600r / min; after rough polishing, the surface roughness reaches Ra0 .12;

[0032] c The first fine polishing: the aluminum alloy workpiece 4 that has been roughly polished is placed on the grinding and polishing disc 1, and the second abrasive paste is used for the first fine polishing, the grinding time is 8min, and the rotating speed is 600r / min; After fine polishing, th...

Embodiment 2

[0044] A method for processing an aluminum alloy mirror, comprising the following steps:

[0045] a Coarse grinding: Place the aluminum alloy workpiece 4 to be ground on the grinding and polishing disc 1, and use white corundum for rough grinding, the rough grinding time is 1min, and the speed is 350r / min; after rough grinding, the surface roughness reaches Ra0.24;

[0046] b Rough polishing: Place the roughly ground aluminum alloy workpiece 4 on the grinding and polishing disc 1, use the first abrasive paste for rough polishing, the grinding time is 8min, and the rotation speed is 500r / min; after rough polishing, the surface roughness reaches Ra0 .13;

[0047] c The first fine polishing: put the aluminum alloy workpiece 4 that has been roughly polished on the grinding and polishing disc 1, and use the second abrasive paste to perform the first fine polishing, the grinding time is 7min, and the rotating speed is 500r / min; After fine polishing, the surface roughness reaches Ra...

Embodiment 3

[0058] A method for processing an aluminum alloy mirror, comprising the following steps:

[0059] a Rough grinding: Place the aluminum alloy workpiece 4 to be ground on the grinding and polishing disc 1, and use white corundum for rough grinding, the rough grinding time is 2min, and the speed is 250r / min; after rough grinding, the surface roughness reaches Ra0.18;

[0060] b Rough polishing: Place the roughly ground aluminum alloy workpiece 4 on the grinding and polishing disc 1, use the first abrasive paste for rough polishing, the grinding time is 12min, and the rotation speed is 400r / min; after rough polishing, the surface roughness reaches Ra0 .11;

[0061] c The first fine polishing: the aluminum alloy workpiece 4 that has been roughly polished is placed on the grinding and polishing disc 1, and the second abrasive paste is used for the first fine polishing, the grinding time is 9min, and the rotating speed is 400r / min; After fine polishing, the surface roughness reaches...

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Abstract

The invention relates to the technical field of machining aluminum alloy, particularly to a method for machining mirror surface of an aluminum alloy. The method for machining mirror surface comprises a, coarse grinding, to be specific, placing an aluminum alloy workpiece to be grinded on a polishing disc, and coarsely grinding the workpiece by white corundum; b, coarse lapping, to be specific, coarsely lapping the aluminum alloy workpiece with a first grinding paste; c, a first fine lapping, to be specific, subjecting the aluminum alloy workpiece to the first fine lapping with a second grinding paste; d, a second fine lapped, to be specific, subjecting the aluminum alloy workpiece to the second fine lapping with a third grinding paste; e, ultrasonic cleaning; f, drying. The aluminum alloy workpiece is machined by the coarse grinding, the coarse lapping, the first fine lapping and the second fine lapped in different stages with different grinding paste. The method for machining mirror surface can gradually reduce the surface roughness of the aluminum alloy, and finally the surface roughness of aluminum alloy is less than 0. 025micron to meet requirements of superprecision machining mirror of the surface of the workpiece. The method for machining mirror surface has the advantages of simple process, high efficiency, convenient operation, little pollution to the environment and stable product quality.

Description

technical field [0001] The invention relates to the technical field of aluminum alloy processing, in particular to an aluminum alloy mirror processing method. Background technique [0002] At present, aluminum alloy is the most widely used non-ferrous metal structural material in industry, and has been widely used in aviation, aerospace, automobile, machinery manufacturing, shipbuilding and chemical industry. The wide application of aluminum alloys has promoted the continuous development of various processing technologies of aluminum alloys, such as turning, milling, grinding, grinding, etc. At the same time, the development of various technologies has expanded the application fields of aluminum alloys. With the rapid development of science and technology and industrial economy in recent years, people's requirements for the quality and performance of aluminum alloys are also increasing. Research on aluminum alloys in ultra-precision mirror processing has also deepened. How...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B37/04C09G1/02
CPCB24B37/042B24B37/044C09G1/02
Inventor 胡守勇
Owner 上海皋奋工业铝型材有限公司
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