Parameter Optimization for CO₂ Laser Cutting of Wood Polymer Composite (WPC)

Wood polymer composites (WPC) are being used widely in various industries due to its wood-like appearance and durability which makes it a suitable substitute for wood in internal decorations. This study involves cutting the WPC (20% wood) of 8mm thickness using CO₂ laser cutting machine and the best parameter is obtained in order to get the best cut. The laser cutting machine used in this experiment has a power rating of 50W and the experimental procedures involves variable power setting from 60% - 80%. The nozzle height was also varied ranging from 4mm to 6mm and the cutting speed from 2 – 4 mm/s. The cut material was analysed by taking the reading of top kerf width. The best parameter is then used to cut decorative wood panels which imitate traditional Malay wood carvings (papan pemanis) to be installed at homes. Through the analysis, there are total 10 solutions being generated which will produce good cut quality.