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A kind of bimetal arc additive manufacturing method

A technology of additive manufacturing and bimetal, applied in the field of bimetal arc additive manufacturing

Active Publication Date: 2021-10-19
南京衍构科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the two metals in the workpiece need to be filled regularly or irregularly alternately, only changing the filling direction of the interlayer filling line and the filling ratio of the two metals in the filling line cannot complete the work piece that requires irregular alternate filling for additive operations. a demand

Method used

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  • A kind of bimetal arc additive manufacturing method
  • A kind of bimetal arc additive manufacturing method
  • A kind of bimetal arc additive manufacturing method

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Embodiment Construction

[0026] The present invention can be better understood from the following examples. However, those skilled in the art can easily understand that the content described in the embodiments is only for illustrating the present invention, and should not and will not limit the present invention described in the claims.

[0027] Such as figure 1 As shown, the bimetallic arc additive manufacturing method of the present invention specifically includes the following steps:

[0028] Step 1, import artifacts ( figure 2 ) digital model file (stl 3D file), a block;

[0029] Step 2, import the designed template structure - honeycomb template ( Figure 4 ) data (point cloud file), each slice in the present embodiment uses this template structure;

[0030] Step 3, perform layered slices on the digital model of the workpiece to be printed according to the Z direction (the layer height h of each slice has been determined), and obtain the cross-section of each slice, with a total of M layers;...

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Abstract

The invention discloses a bimetallic arc additive manufacturing method. The digital model of the workpiece to be printed is input into the computer, and then the designed template structure data of each layer slice is input into the computer; the digital model of the workpiece is layered and sliced ​​in the Z direction. , to obtain the cross-section of each layer of slices, a total of M layers; according to the cross-section calculation of each layer of the workpiece to generate a straight line filling path of the slice; compare the template structure corresponding to each layer of slices with the scope of the slice, if the template The structure fully covers the cross-section of the layer slice for the next step; calculate the intersection points of all the straight line filling paths generated by the Nth layer slice and the polygons of the Nth layer template structure corresponding to the Nth layer slice, and these intersection points are straight lines The switching point for the A metal wire and the B metal wire on the fill path. The method of the invention can realize regular or irregular alternate filling cladding by using two different metal welding wires.

Description

technical field [0001] The invention relates to a bimetal arc additive manufacturing method, which belongs to the technical field of metal welding processing. . Background technique [0002] Arc additive manufacturing is a manufacturing method that melts and deposits metal layer by layer to form a workpiece by welding. The traditional arc additive process usually uses slicing software to perform layered slicing and path planning on the digital model of the parts in the Z direction, and then outputs the program to the welding robot for additive operations. At present, the dual metal arc additive manufacturing only changes the filling direction of the interlayer filling line and fills two different metals according to the fixed ratio of the filling line through software. When the two metals in the workpiece need to be filled regularly or irregularly alternately, only changing the filling direction of the interlayer filling line and the filling ratio of the two metals in the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K9/04B23K9/133B23K9/32
CPCB23K9/04B23K9/133B23K9/32
Inventor 吴玲珑许春权刘欣
Owner 南京衍构科技有限公司