1. three roll single pinch machine
2. three roll double pinch machine
3. four roll double pinch machine
4. pyramid machine
pyramid machine
1. pyramid machine
2. three roll single pinch machine
3. four roll double pinch machine
4. three roll double pinch machine
four roll double pinch machine
1. roll bending
2. rotating die and wiper block
3. series of rolls
4. matching shape wheels
rotating die and wiper block
1. deep drawing
2. stamping
3. pressing
4. shallow drawing
deep drawing
1. single action deep drawing
2. double action deep drawing
3. triple action deep drawing
4. shallow drawing
double action deep drawing
1. for producing a seamless tube
2. to increase the thickness of a ring
3. to decrease the thickness of a ring
4. for producing large cylinder
to decrease the thickness of a ring
1. inner roller is larger in diameter but outer roller is power driven
2. outer roller is larger in diameter but inner roller is power driven
3. both rollers are equal in diameter but inner roller is power driven
4. larger outer roller is power driven
larger outer roller is power driven
1. a hollow circular section
2. a T section
3. an I section
4. a channel section
a hollow circular section
1. a viscous lubricant pouring through the mouth of container
2. a tooth paste coming out of its tube
3. hard particles thrown out of a nozzle under air pressure
4. abrasive particle in the form of slurry coming out of an opening
a tooth paste coming out of its tube
1. solid forward extursion
2. solid backward extrusion
3. hollow backward extrusion
4. hollow forward extrusion
hollow backward extrusion