Abstract
The work is devoted to solving the problem of height estimating of clad bead, formed by laser powder cladding technology, by analyzing the images of processing area. A technique for evaluating of deposited structures geometry is shown by comparing the sharpness differences of individual sections of studied images. An optical scheme is described that makes it possible to assess the depth of field of obtain images based on automated data analysis.
Highlights
Powder cladding technology is a thermal coating method widely used in industry to obtain wear-resistant and corrosion-resistant surfaces [1,2,3]
One of the ways to recognize the bead height, based on the principle of automated image analysis, is to estimate the sharpness depth of target parts of cladding area images the recorded by the camera
Based on the analysis of the sharpness depth of the clad area, it is possible to carry out an analytical measurement of the height difference to identify the volumetric geometry of the clad bead
Summary
Powder cladding technology is a thermal coating method widely used in industry to obtain wear-resistant and corrosion-resistant surfaces [1,2,3]. The most promising approach of powder cladding, devoid of the disadvantages of other technologies, is the use of laser radiation as an energy source [4,5]. To control the process of powder laser cladding, first of all, it is necessary to implement the framework for registering the clad material height. One of the ways to recognize the bead height, based on the principle of automated image analysis, is to estimate the sharpness depth of target parts of cladding area images the recorded by the camera. Based on the analysis of the sharpness depth of the clad area, it is possible to carry out an analytical measurement of the height difference to identify the volumetric geometry of the clad bead
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