Research On The Surface Quality Of Cut Bamboo Based Panel Board

To use bamboo as a material for panel board can save wood greatly, which improves the economical value and broadens utilization scope of bamboo. Many countries have realized its importance so it has been developed much. In recent years sees a lot of research and development on bamboo based panel board, and there are many new products and manufacturing equipment.Because bamboo is different from wood in structure and properties, so bamboo has its own characteristics. In order to guarantee the surface quality of engineered bamboo based panel board, the cut method and cut parameters applied should not be the same with those of wood based panel board. The research in the paper is by measuring the surface roughness to analyze the influence on surface quality of test parts by different cutting parameters and cutting methods. In tests, use different cutters and cutting parameters to cut test parts; capture pictures of the formation of fiber and the deformation of test parts with a CCD camera during cutting, especially on the knots and scars; measure the surface roughness and analyze different factors, and choose the preferred cutting condition, so to have a better surface quality and achieve greater benefit.The research consists of two parts, and both apply L9 (34) single index orthogonal test. Cut the test parts in different directions according to the test schedule and measure surface roughness of cut test parts. In the first test, cut the bamboo panel test parts in planing, veneer and cross cutting direction respectively with changing rake angle of cutter, rotating speed and feed speed. We can see in the first test that in all cutting directions enhancing rotating speed and with a reasonable feed speed and a smaller rake angle cutter can get better surface quality. But in the planing cutting direction digging up and cleavage are prone to happen, especially in the knots. It will affect the surface quality.One of the most useful ways to reduce digging out is to use the cutter with chip breaker. In the second test, cut the test parts in planing, veneer and cross cutting direction respectively with different cutters with chip breaker. In the second test the rotating speed and feed speed are constant, and the size of chip breaker is changing. By measuring surface roughness to get more reasonable parameters. Through the test, we can get that when d is smaller the surface quality is better. By comparing the pictures captured during cutting, we can see that chip breaker plays its role most in the planing cutting direction. The cut fibers arebreak by chip break before hand, so that digging out reduces.