The Statistic Force Model of Split Point Drill for Drilling Fiber Reinforced Composite

• Main Authors: Jen-Hao Liu, 劉人豪
• Other Authors: Ming-Yung Wang
• Format: Others
• Language: en_US
• Published: 1999
• Online Access: http://ndltd.ncl.edu.tw/handle/04816993437652696619

碩士 === 大同工學院 === 機械工程研究所 === 87 === This study is to analyze the effect of fiber angles、tool geometries and cutting conditions on thrust force and torque systematically. The selected parameters of this experiment are the fiber angle, the inclination angle, the second chisel edge angle, the spindle speed and the feed. The experiment design matrix of five parameters is disposed by Response Surface Methodology (R.S.M.). The prediction model of drilling thrust force and torque is established from the Statistical Analysis System (S.A.S.) software. The significant parameters on trust force and torque are investigated by Statistical Analysis System (S.A.S.) software. The inclination angle and the second chisel edge angle obviously affect the trust force. The inclination angle、the second chisel edge angle and feed significantly affect the torque. As the result, the thrust force is approach to minimum when the fiber angle=2.57°, the inclination angle =32.72°, the second chisel edge angle=135.89°, the spindle speed=1989.5 revolution per minute (R.P.M.) and the feed =31.26(mm/min). The torque is approach to maximum when the fiber angle=49.17°, the inclination angle =33.85°, the second chisel edge angle=134.59°, the spindle speed=1385.7 (R.P.M.) and the feed =62.37(mm/min).