3° to 8°
20° to 30°
60° to 90°
90° to 120°
A. 3° to 8°
Forehand welding
Flux cored ARC welding
Electro slag welding
Pulsed spray welding
Plastics
Copper
Cast steel
Carbon steel
Milling
Shaping with rack cutter
Shaping with pinion cutter
Hobbing
5 m/min
10 m/min
15 m/min
30 m/min
Pull broaching
Push broaching
Surface broaching
Continuous broaching
Solid part - faces - edges - vertices
Solid part - edges - faces - vertices
Vertices - edges - faces - solid parts
Vertices - faces- edges - solid parts
Melting and Evaporation
Melting and Corrosion
Erosion and Cavitations
Cavitations and Evaporation
Sprue base area: runner area: ingate area
Pouring basin area: ingate area: runner area
Sprue base area: ingate area: casting area
Runner area: ingate area: casting area
Up milling
Down milling
Forming
Broaching
Work surface
Tool face
Machine surface
None of these
Tool steels
Sintered carbides
Glass
All of these
Brittle material
Tough material
Hard material
Ductile material
Sensitive drilling machine
Radial drilling machine
Gang drilling machine
Deep hole drilling machine
Soldering
Brazing
Welding
Clamping
Spot facing
Boring
Tapping
Drilling
Brittle metals
Ductile metals
Hard metals
Soft metals
Argon H₂
Argon CO₂
Argon Helium
Helium
Increases tool life
Decreases tool life
Produces chipping and decreases tool life
Results in excessive stress concentration and greater heat generation
250°C
350°C
500°C
900°C
Pull broaching
Push broaching
Surface broaching
Continuous broaching
0.1 to 0.2
0.20 to 0.25
0.25 to 0.40
0.40 to 0.55
It requires less power than machining metals at room temperature.
The rate of tool wear is lower.
It is used for machining high strength and high temperature resistant materials.
All of the above
Continuous chips
Discontinuous chips
Continuous chips with built up edge
Either (A) or (C)
High metal removal rate
Dry machining
Use of soft cutting tool
Surface finish
Sensitive drilling machine
Radial drilling machine
Gang drilling machine
Multiple spindle drilling machine
Has less number of teeth
Is short and stocky
Removes less material for each pass of the tool
All of the above
Adhesion of metals
Oxidation of metals
Diffusion of metals
All of these
Improve the accuracy of location
Reduce the tendency to over-index
Improve upon the acceleration and deceleration characteristics
Reduce the cycle time
3° to 8°
20° to 30°
60° to 90°
90° to 120°
Softer metals
Cotton fabric
Carbon
Graphite