A control method for the vertical lapping morphology of single-pass cladding layers manufactured by arc additive manufacturing

A single-pass cladding and additive manufacturing technology, which is applied in the field of additive manufacturing, can solve the problems of interlayer height and overlapping shape that are difficult to effectively control, and achieve good cladding layer vertical overlapping effect and high accuracy , Improve the effect of surface quality

Active Publication Date: 2021-06-29
XIAN BRIGHT ADDTIVE TECH CO LTD
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Problems solved by technology

[0004] The purpose of the present invention is to provide a method for controlling the vertical overlapped morphology of a single-pass cladding layer manufactured by arc additive manufacturing, which solves the problems of interlayer height and overlapping shape of vertical deposition in additive manufacturing existing in the prior art. Problems that are difficult to effectively control

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  • A control method for the vertical lapping morphology of single-pass cladding layers manufactured by arc additive manufacturing
  • A control method for the vertical lapping morphology of single-pass cladding layers manufactured by arc additive manufacturing
  • A control method for the vertical lapping morphology of single-pass cladding layers manufactured by arc additive manufacturing

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[0030] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0031] The invention discloses a method for controlling the vertical lap joint morphology of a single-pass cladding layer manufactured by arc additive manufacturing, which is specifically implemented according to the following steps:

[0032] Step 1: Use electric arc to form the first cladding layer on the substrate, obtain the cross-sectional area of ​​the middle region of the cladding layer, measure its width L in mm, measure its height H in mm, and measure at least 5 times , take the average value respectively, and obtain the parabolic fitting parameters of the cross-section of the first cladding layer as follows: a=4H / L 2 , b=H; then establish a parabolic model of the cladding layer;

[0033] like figure 1 As shown, the parabolic model of the cladding layer of the present invention is used to fit the profile of the cross-section of the ...

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Abstract

The invention discloses a method for controlling the vertical lapping morphology of a single-pass cladding layer manufactured by arc additive manufacturing. First, the first cladding layer is formed on a forming substrate, and the width and height of the first cladding layer are measured to determine Parabolic fitting parameters, determine the optimal layer height according to the fitting parameters, and then carry out the forming of the second cladding layer under the premise of keeping the wettability of the cladding layer stable according to the fitting parameters, so as to realize the improvement of the first cladding layer The control of the overlapping morphology of the first layer to the second cladding layer; the second cladding layer is used as a new cladding layer, and then the overlapping morphology of the new cladding layer is controlled until the vertical overlapping is completed, realizing The control of the vertical lap morphology of the cladding layer is achieved. The present invention is a method for controlling the vertical lapped appearance of a single-pass cladding layer manufactured by arc additive manufacturing. Vertical lapping effect of cladding layer.

Description

technical field [0001] The invention belongs to the technical field of additive manufacturing, and relates to a method for controlling the vertical lap joint morphology of a single cladding layer manufactured by arc additive manufacturing. Background technique [0002] Wire Arc Additive Manufacture (WAAM) is a method of using the principle of layer-by-layer cladding, using the arc as the heat source, under the control of the digital program, through the feeding of the wire and the three-dimensional digital model by wire-surface- Advanced digital manufacturing technology that gradually forms metal parts. At present, arc additive technology still faces great challenges in improving the surface quality of formed parts and reducing roughness. Traditional research methods often improve the surface quality of formed parts by changing the forming process parameters (welding speed, wire feeding speed, welding current, welding voltage). The shape after solidification and the factor...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K9/04
CPCB23K9/04
Inventor 王晓光赵晓明胡广郁明玮
Owner XIAN BRIGHT ADDTIVE TECH CO LTD
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