Laser-assisted grinding wheel dressing (II) - Experimental researches

Most of the mechanical dressing technologies for resin bonded superabrasive grinding wheels are time consuming and costly. Based on the outcomes of the simulations in the previous study, this paper demonstrates the comprehensive researches on the laser-assisted dressing process control, grinding wheel topography reconfiguration by 3D laser scanning technology and analyses of grinding temperature. The synthesized parameter incorporates the laser dressing process parameters and can be used to the process control. In order to evaluate the laser-assisted dressing effectiveness, the newly developed non-contact laser measuring system based on the principle of the triangulation was used. The grain protrusion height and the intergrain spacing can characterize the grinding wheel surface. A series of grinding tests on the laser-assisted dressed grinding wheel and the mechanically dressed grinding wheel were conducted for comparison. The results proved the feasibility of laser-assisted dressing for resin bonded superabrasive grinding wheels and revealed the importance of choosing appropriate laser dressing parameters. DZ4 is taken for example in the research and analysis.