1. spinning
2. upsetting
3. drawing down
4. reaming
upsetting
1. poor surface finish is produced
2. scale is formed on metal surface
3. close tolerances can not be maintained
4. all of the above
all of the above
1. requires much higher pressure than hot working
2. increase hardness
3. distort grain structure and does not provide an appreciable reduction in size
4. all of these
all of these
1. tensile strength
2. hardness
3. yield strength
4. all of these
all of these
1. 12 mm
2. 25 mm
3. 49 mm
4. 50 mm
25 mm
1. hot spinning
2. hot forging
3. hot extrustion
4. hot piercing
hot spinning
1. extrusion
2. pierching
3. forging
4. casting
forging
1. 4000C
2. 8000C
3. 10000C
4. 13000 C
10000C
1. extrusion
2. piercing
3. forging
4. casting
piercing
1. extrusion
2. cold peening
3. hot piercing
4. up setting
hot piercing