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Precise laser forming method for aluminum alloy part with complex inner runner

An aluminum alloy parts, precision forming technology, applied in the direction of metal material coating process, coating, etc., can solve the problems of inner flow channel side wall defects, side wall deformation and other problems, to reduce the process, good shape and position tolerance, improve material The effect of utilization

Inactive Publication Date: 2016-03-09
XIAN BRIGHT ADDTIVE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a laser precision forming method for aluminum alloy parts with complex inner runners, which solves the problem that the existing manufacturing method of aluminum alloy parts with inner runners is easy to cause defects on the side walls of the inner runners, and the subsequent welding process is easy to cause defects on the side walls. deformation problem

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Establish a three-dimensional model of the part according to the formed part, and use the segmentation software to perform layered slice discrete processing on the three-dimensional model of the part to obtain the scanning path of each layer of laser; fix the base material on the forming cylinder workbench of the laser forming equipment, and put the aluminum alloy powder Put into the powder cylinder, wherein the aluminum alloy powder includes the following components: Si: 7.0%, Mg: 0.5%, Fe: 0.45%, Cu: 0.08%, Mn: 0.55%, Ni: 0.10%, Zn: 0.03% , Ti: 0.06%, the rest is Al, the particle size of aluminum alloy powder is 50μm; fill the forming chamber with argon gas, the purity of argon is 99.99%, and control the oxygen concentration in the forming chamber to 5ppm; start the powder spreading device, on the substrate Lay a layer of aluminum alloy powder; start the laser forming equipment, the laser beam emitted by the laser rotates and scans the powder on the substrate according...

Embodiment 2

[0036] Establish a three-dimensional model of the part according to the formed part, and use the segmentation software to perform layered slice discrete processing on the three-dimensional model of the part to obtain the scanning path of each layer of laser; fix the base material on the forming cylinder workbench of the laser forming equipment, and put the aluminum alloy powder Put into the powder cylinder, wherein, the aluminum alloy powder includes the following components: Si: 7.8%, Mg: 0.65%, Fe: 0.45%, Cu: 0.08%, Mn: 0.55%, Ni: 0.10%, Zn: 0.03% , Ti: 0.06%, the rest is Al, the particle size of the aluminum alloy powder is 80 μm; fill the forming chamber with argon gas with a purity of 99.995%, and control the oxygen concentration in the forming chamber to 8ppm; start the powder spreading device, Lay a layer of aluminum alloy powder on the top; start the laser forming equipment, the laser beam emitted by the laser will rotate and scan the powder on the substrate according t...

Embodiment 3

[0038]Establish a three-dimensional model of the part according to the formed part, and use the segmentation software to perform layered slice discrete processing on the three-dimensional model of the part to obtain the scanning path of each layer of laser; fix the base material on the forming cylinder workbench of the laser forming equipment, and put the aluminum alloy powder Put into the powder cylinder, wherein the aluminum alloy powder includes the following components: Si: 9.0%, Mg: 0.8%, Fe: 0.45%, Cu: 0.08%, Mn: 0.55%, Ni: 0.10%, Zn: 0.03% , Ti: 0.06%, the rest is Al, the particle size of the aluminum alloy powder is 100 μm; fill the forming chamber with argon gas with a purity of 99.999%, and control the oxygen concentration in the forming chamber to 10ppm; start the powder spreading device, Lay a layer of aluminum alloy powder on the top; start the laser forming equipment, the laser beam emitted by the laser will rotate and scan the powder on the substrate according to...

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Abstract

The invention discloses a precise laser forming method for an aluminum alloy part with a complex inner runner. The method includes the following steps that a three-dimensional model is established and spliced layer by layer, so that a laser scanning path is obtained; a base material is fixed and aluminum alloy powder is put in a powder cylinder; argon is injected in a forming chamber and the aluminum alloy powder is laid on the base material; a laser forming device is started for scanning; a forming cylinder descends at the distance of the thickness of a layer, the powder cylinder accordingly ascends at the distance of the thickness of a layer, and the aluminum alloy powder is laid on the machined current layer through a powder laying device till the part is completely machined; and the part is annealed, so that the aluminum alloy part is obtained. The formed part manufactured through the method is dense, tiny and even in structure, free of casting defects such as shrinkage porosity, shrinkage cavities and cold laps generated in the casting process, good in metallurgy quality, free of leakage in the pressing process and barely free of the deformation phenomenon, the form and location tolerance of the side wall of the obtained thin-wall part is good, no following treatment is needed, the material use rate is increased, the work procedures are reduced, and the part manufacturing period is shortened.

Description

technical field [0001] The invention belongs to the technical field of metal forming, and in particular relates to a laser precision forming method for an aluminum alloy part with a complex internal flow channel. Background technique [0002] At present, the general method of domestic production of complex inner runner aluminum alloy parts is a cast-welded composite structure, that is, the bottom plate is produced by precision casting, and then the cover plate is sealed and welded on the bottom plate, and finally the production of complex inner runner aluminum alloy parts is realized. However, there are many disadvantages in this method of manufacturing: (1) The bottom plate is produced by casting. Due to the structural characteristics of this type of part, the structure of the part after casting is not dense, and the side wall of the inner runner is prone to shrinkage and even cold shut, Casting defects such as shrinkage cavities, these defects are prone to leakage during t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C24/10
CPCC23C24/106
Inventor 薛蕾贺峰赵晓明杨东辉曹通
Owner XIAN BRIGHT ADDTIVE TECH CO LTD
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