Control Method of Vertical Lap Morphology of Cladding Layer Based on Wettability

Abstract

The invention discloses a method for controlling the vertical lapping morphology of cladding layers based on wettability. First, the first cladding layer is formed on a forming substrate, and the parabolic fitting is determined by measuring the width and height of the first cladding layer. 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 transformation from the first cladding layer to the second cladding layer The control of the lapping morphology of the second cladding layer; the second cladding layer is used as a new cladding layer, and then the lapping morphology of the new cladding layer is controlled until the vertical lapping is completed, and the cladding is realized Control of layer vertical overlap morphology. The control method of the cladding layer vertical lapping morphology based on wettability in the present invention, the control effect on the cladding layer vertical lapping morphology conforms to the actual situation, the accuracy is high, and a better cladding layer can be realized Vertical overlap effect.

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]...

AI Technical Summary

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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