Research on Laser-assisted Micro-milling of Composite Materials
Glass fibre reinforced composites (GFRP) and carbon fibre reinforced composites (CFRP) have a wide range of applications in aerospace,automotive manufacturing and military equipment.Considering that both conventional milling and laser processes have certain shortcomings when processing composites,laser-assisted micro milling is used to measure the shape and size of the heat-affected zone of GFRP and CFRP in laser-assisted micro-milling for thermosetting GFRP and CFRP materials,to investigate the effect of laser processing on different areas of the matrix,and to analyse the processing and processing feasibility.The experiments show that GFRP and CFRP materials have distinct,inverted triangu-lar-shaped vapourisation zones and heat-affected zones during laser processing.Laser-assisted micro-milling exfoliates the material in chunks and produces less dust during the process,both of which are brittle peels.However,due to the influence of the heat-affected zone,the tool diameter should be larger than the width of the heat-affected zone when processing GFRP and CFRP with laser-assisted micro-milling,which can be achieved while reducing powder chips and significantly reducing tool wear,thus reducing the difficulty of processing the material.
万方数据
维普
