ABSTRACT

An extreme inclination angle of helical cutting tool edge has been developed in milling of new commercially wood-based materials. The purpose of this research was to investigate wear resistance, chip flow and shape, surface roughness, and noise level of helical edge cutting tools in milling wood-based materials. The wood-based materials of wood plastic composite, laminated veneer lumber, and oriented strand board were cut by the helical edge cutting tools (inclination angle of 15°, 30°, 45°, 60°, and 75°) in the up-milling and down-milling processes on a computer numerical control router. Feed speed was set up in 2, 3, and 4 m/min. The results show that the helical edges provide better wear resistance, better surface quality, and lower noise emission compared to the conventional edge (0°). Edge radius wear, chip flow area and flight speed, surface roughness, and noise level decreased with increasing the inclination angle of the cutting tool edges. The differences in the wood-based material structure, the milling process, and the feed speed resulted in the difference in cutting tool wear, chip flow and shape, surface roughness, and noise level phenomenon.

摘要

在新型商用木基材料的铣削中，开发了螺旋切削刀具刃的极端倾角。本研究的目的是研究铣削木质材料时螺旋刃刀具的耐磨性、切屑流动和形状、表面粗糙度以及噪音水平。采用斜刃刀具(倾角15°、30°、45°、60°、75°)对木塑复合材料、单板层积材、定向刨花板等木质材料进行向上切削。计算机数控路由器上的铣削和顺铣工艺。进给速度设置为 2、3 和 4 m/min。结果表明，与传统刀刃 (0°) 相比，螺旋刀刃具有更好的耐磨性、更好的表面质量和更低的噪音排放。刀刃半径磨损、切屑流动面积和飞行速度，表面粗糙度和噪声水平随着刀具刃口倾角的增加而降低。木质材料结构、铣削工艺和进给速度的差异导致刀具磨损、切屑流动和形状、表面粗糙度和噪音水平现象的差异。