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Control method for vertical overlapping appearance of cladding layer based on wettability

A control method and cladding layer technology, applied in the field of additive manufacturing, can solve the problems of the height between vertical deposition layers and the difficulty of effectively controlling the overlapping shape, so as to solve the problems of overlapping surface quality and good vertical cladding layer. Lap effect, the effect of improving surface quality

Active Publication Date: 2020-04-21
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 wettability-based control method for the vertical lapping morphology of the cladding layer, which solves the problem that the interlayer height and lapping morphology of the vertical deposition in the additive manufacturing existing in the prior art are difficult to be effective. problem of control

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  • Control method for vertical overlapping appearance of cladding layer based on wettability
  • Control method for vertical overlapping appearance of cladding layer based on wettability
  • Control method for vertical overlapping appearance of cladding layer based on wettability

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[0031] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0032] The method for controlling the vertical lapping morphology of cladding layers based on wettability disclosed in the present invention is specifically implemented according to the following steps:

[0033] 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;

[0034] Such as 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 first cladding layer to obta...

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Abstract

The invention discloses a control method for vertical overlapping appearance of a cladding layer based on wettability. The method comprises the steps: firstly, forming a first cladding layer on a forming substrate, determining a parabolic fitting parameter by measuring the width and the height of the first cladding layer, determining the optimal layer height according to the fitting parameter, andthen forming a second cladding layer on the premise that the wetting condition of the cladding layers is kept stable according to the fitting parameter, so that the overlapping appearance from the first cladding layer to the second cladding layer is controlled; and taking the second cladding layer as a new cladding layer, controlling the overlapping appearance of the new cladding layer until thevertical overlapping is finished, and controlling the vertical overlapping appearance of the cladding layer. According to the control method for the vertical overlapping appearance of the cladding layer based on the wettability, the control effect on the vertical overlapping appearance of the cladding layer is consistent with the actual situation, the accuracy is high, and a better vertical overlapping effect of the cladding layer can be realized.

Description

technical field [0001] The invention belongs to the technical field of additive manufacturing, and relates to a method for controlling the vertical lapped morphology of cladding layers based on wettability. 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 factors of overlapping shape. [0003]...

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Application Information

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Patent Type & Authority Applications(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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