Preliminary investigation of delamination factor in drilling of Wood Plastic Composites (WPC)

This thesis analyses on how the delamination factor affected in drilling of wood plastic composites. Drilling is one of the important processes nowadays, functioning in various ways in making life better every day. The experiment focuses on conducting three drilling strategies to identify the most suitable one to be use on the composites, studying the effect of drilling operating parameters and measuring the tool life performance of drilling WPC. CNC machine was used to drill holes as it is commonly used and practiced by many private and successful factories and companies in providing the best wood design and product in the market. It was observed that the single step drill peck as the best suited strategy to drill WPC with less delamination occurred on the hole entry and exit compared to the other two methods, 2-peck and 4-peck drill. Hole seems to form peel-up and push down delamination severely along the hole edge if using the 4-peck method while the least peel up occurred if used the single step method. Tool wear usually occurred if usage exceeds the limit and it is observed as mentioned later on.