Using Laser Surface Treatment to Produce a Slideway on a Computer Numerical Control (CNC) Machine Tool with Biomimetic Characteristics
Y-Q. Wang, X-H. Yuan, X-H. Pan and Y. Gu
The machining accuracy and service life of a computer numerical control (CNC) machine tool declines with the wear of components. In order to improve the performance of accuracy sustainability, this work introduced the biological coupling theory into the field of CNC machine tool. First, the slideway with biomimetic surface characteristics was manufactured by the laser processing. Second, the slideway with biomimetic surface characteristics was examined using an optical microscope, a scanning electron microscope (SEM) and X-ray diffraction (XRD). Then, the reciprocating wear tests were carried out under boundary lubrication. The wear resistance of the slideway with biomimetic surface characteristics was greatly improved in comparison with the as-received slideway. The non-smooth surface and soft-hard segment structure were achieved, which contributed to the improvement of the anti-wear performance of the slideway with biomimetic surface characteristics. The present approach provides a new method for prolonging the accuracy sustainability of CNC machine tool.
Keywords: Nd:YAG laser, surface treatment, computer numerical control (CNC) machine tool, slideway, biomimetic, wear, accuracy sustainability