10 to 20 m/min
18 to 30 m/min
24 to 45 m/min
60 to 90 m/min
B. 18 to 30 m/min
1 in 10
1 in 15
1 in 20
1 in 30
Increase in moisture content beyond 6 percent
Increase in permeability
Decrease in permeability
Increase in both moisture content and permeability
15 to 19 m/min
25 to 31 m/min
60 to 90 m/min
90 to 120 m/min
Flat drill
Straight fluted drill
Parallel shank twist drill
Tapered shank twist drill
Single point cutting tool
Two point cutting tool
Three point cutting tool
Multipoint cutting tool
Plastics
Copper
Cast steel
Carbon steel
Four direct speeds
Four indirect speeds
Four direct and four indirect speeds
Eight indirect speeds
Negative rake angle
Positive rake angle
Any rake angle
No rake angle
Chip thickness ratio
Forces during metal cutting
Wear of the cutting tool
Deflection of the cutting tool
2.17 rpm, 600 joules
6.8 rpm, 6 joules
5.03 rpm, 600 joules
22 rpm, 600 joules
Increase machining accuracy
Facilitate interchangeability
Decrease expenditure on quality control
All of these
Machining horizontal surface
Machining vertical surface
Machining angular surface
All of these
Metal removal rate is high
High surface finish is obtained
High form accuracy is obtained
High dimensional accuracy is obtained
Cemented carbide
Ceramic
Cast iron
All of these
Up milling
Down milling
Face milling
End milling
3° to 8°
20° to 30°
60° to 90°
90° to 120°
Cutting key ways on shafts
Cutting external screw threads
Cutting teeth of spur gears
All of these
Aluminium oxide
Boron carbide
Silicon carbide
Any one of these
3° to 8°
20° to 30°
60° to 90°
90° to 120°
250°C
350°C
500°C
900°C
120
170
180
240
Course grained
Fine grained
Medium grained
None of these
Knurling
Rough turning
Boring
Thread cutting
Outside diameter but not roundness
Roundness but not outside diameter
Both outside diameter and roundness
Only external threads
Vertical boring machine
Horizontal boring machine
Precision boring machine
Jig boring machine
Continuous chips
Discontinuous chip
Continuous chips with built up edge
None of these
Tool relative to the workpiece
Chip relative to the tool
Tool along the tool face
None of these
Increases
Decreases
Does not effect
None of these
Mild steel
Copper
Aluminium
Brass
Making a cone-shaped enlargement of the end of a hole
Smoothing and squaring the surface around a hole
Sizing and finishing a small diameter hole
Producing a hole by removing metal along the circumference of a hollow cutting tool