Study on the Machinability of Pinus densiflora at Chunyang District for Wood Patterns - Cutting Force, Surface Roughness and Suface Phenomenon by Face Milling -

목형용(木型用) 춘양목(春陽木)의 절삭가공(切削加工) 특성(特性)에 관(關)한 연구(硏究)(제2보(第2報)) - 정면(正面)밀링 절삭(切削)에 의한 절삭저항(切削抵抗), 표면조도(表面粗度) 및 가공표면상태(加工表面狀態) -

Recently the automization of wood manufacturing and the development of CNC machine tools becomes the center of interest. Cutting mechanism, tool wear and the roughness of machined surface have been studied. In the studies about wood for special uses, concrete data of cutting is desired. While Pinus densiflora is characterized that heartwood develops as age increases, Chunyang District has the characteristic of strength, red color, relatively regular chap and high heartwood - percentage. But there is no data about cutting this wood, Chunyang District. In this study face milling by sintered carbide tool was excuted to Chunyang District. Cutting force, Surface roughness and states were investigated with regard to cutting speed. Example results were as follows; 1) Mean cutting resistance against lateral component force and longitudinal component force decreased rapidly up to cutting speed of 155 m/min, and remains constant above this speed. 2) The surface roughness of cutting surface lowered as cutting speed increased, regardless of fiber formation. Radial rougness of fiber is larger than lineal surface roughness. 3) Increase in Cutting speed made machining mark restrained. Down-milling showed larger marks than up-milling.