Hot machining
Ultrasonic machining
ECM process
Chemical milling
D. Chemical milling
Up milling
Down milling
Face milling
End milling
Hardness of the work and tool material at the operating temperature
Amount and distribution of hard constituents in the work material
Degree of strain hardening in the chip
All of these
In-feed grinding
Through feed grinding
End-feed grinding
Any one of these
Between the upper and lower critical temperature and cooled in still air.
Above the upper critical temperature and cooled in furnace.
Above the upper critical temperature and cooled in still air.
Between the upper and lower critical temperature and cooled in furnace.
Hot machining
Ultrasonic machining
ECM process
Chemical milling
20° to 40°
40° to 60°
60° to 80°
None of these
Feed marks or ridges left by the cutting tool
Fragment of built-up edge on the machined surface
Cutting tool vibrations
All of these
15 to 19 m/min
25 to 31 m/min
60 to 90 m/min
90 to 120 m/min
Taper tap
Second tap
Bottoming tap
Any one of these
Up milling
Down milling
Face milling
End milling
Same
Low
High
None of these
30°
45°
60°
90°
5°
6°
8°
10°
Conventional milling
Climb milling
Face milling
End milling
Equal to
Less than
More than
None of these
Globular transfer
Spray transfer
GMAW practice
Dip transfer
It improves tool life
It improves the surface finish
Both (A) and (B)
None of these
GMAW
GTAW
Submerged Arc Welding
None of these
Internal and external surfaces
Round or irregular shaped holes
External flat and contoured surfaces
All of these
Adhesion of metals
Oxidation of metals
Diffusion of metals
All of these
High carbon steel tools
High speed steel tools
Cemented carbide tools
All of these
High speed steel
Carbon steel
Wrought iron
All of these
Hardness of the material being ground
Nature of the grinding operation
Finish required
All of these
Mild steel
Cast iron
High speed steel
High carbon steel
Four jaw independent chuck
Three jaw universal chuck
Magnetic chuck
Drill chuck
Thread milling
Thread chasing
Thread cutting with single point tool
Thread casting
ARC
Short ARC
ARC length
ARC blow
Silicon carbide
Aluminium oxide
Sand stone
Diamond
Trimming the surface left by sprues and risers on castings
Grinding the parting line left on castings
Removing flash on forgings
All of these
15 to 19 m/min
25 to 31 m/min
60 to 90 m/min
90 to 120 m/min