single pointed tool geometry

Question 1

single pointed tool geometry

Answer 1

• side/normal rake angle
• back rake/inclination angle
• front clearance/relief angle
• side clearance/relief angle
• side/major cutting edge angle
• front/end/minor cutting edge angle
• nose radius

Question 2

side/normal rake angle

Answer 2

directs chip flow away from cut;

provides sharp cutting edge

Question 3

back rake/inclination angle

Answer 3

promotes smooth chip flow;

good surface finishes

Question 4

front clearance/relief angle

Answer 4

prevents tool end from rubbing on freshly cut workpiece surface

Question 5

side clearance/relief angle

Answer 5

allows tool to feed into work material;

prevents tool end from rubbing on freshly cut workpiece surface

Question 6

side/major cutting edge angle

Answer 6

defines orthogonal/oblique cutting;
turns chip away from finished surface;
allows edge to enter workpiece w/o sudden shock

Question 7

front/end/minor cutting edge angle

Answer 7

provides clearance betw trailing edge of tool & freshly cut workpiece surface

Question 8

nose radius

Answer 8

influences surface finish of workpiece