Laser Additive Remanufacturing Cladding Thickness Detection System

Abstract

As an important parameter in laser additive remanufacturing technology, cladding thickness is related to the quality of remanufacturing. Thickness detection during the cladding process can help improve the cladding quality and facilitate manual adjustment of parameters in real time to optimize the cladding thickness. This system develops a set of cladding thickness detection system based on laser displacement sensor. The system consists of hardware and software parts. The hardware part includes laser displacement sensor, mounting plate, digital signal acquisition device and laser cladding system. The software part a set of data acquisition software is developed according to Visual Studio. The system uses two methods to measure, and eliminates the error caused by the tilt factor of the worktable, and realizes the online measurement of cladding thickness.

Determination of the Effect of Heat Input during Laser Welding on the Magnitude of Residual Stresses in the Refurbishment of Al Alloy Casting

“…Vinas et al [3] carried out an investigation into the possibility of applying surfacing using PTA technology by employing a plasma beam, whereby the quality of the surfacing was satisfactory and there was minimal thermal effect on the substrate surface. A similar effect occurred in the subsurface areas presented in the studies conducted by [4,5] who applied progressive laser control minimizing the heat input in the fabrication of the overlays. The effect of alloying additives on the resulting chemical composition of the coatings was evaluated in the works of [6] Trembach et al, where the aim of modifying the chemical composition of the fluxes was to increase the tribological resistance of the coatings.…”

Online Correction of Laser Head Nozzle Position for Laser Metal Deposition Using a Chromatic Confocal Displacement System

“…Furthermore, measuring the distance behind the laser head using a laser displacement sensor was proposed in [ 14 ], which involved a time delay and the need for additional kinematic system movements. Measuring the thickness of the deposited layer using laser displacement sensors during remanufacturing using the LMD process was also presented by Lu et al as a single directional measurement [ 15 ].…”