larger than
In a four high rolling mill, the diameter of backing up rolls is Larger than the diameter of working rolls.
hot spinning
The parts of circular cross-section which are symmetrical about the axis of rotation are made by Hot spinning.
compressive stress in the flange and tensile stress in the wall
The stress in the flange region during the deep drawing process is a combination of radial tensile drawing stress and a tangential compressive stress.
The blank-holder at the top of the workpiece exerts a compressive force at the upper surface of the blank during the drawing process.
bending and stretching
The mode of deformation of the metal during spinning is Bending and stretching.
uniform solid and hollow sections
The metal extrusion process is generally used for producing Uniform solid and hollow sections
Extrusion is a process used to create objects of a fixed cross-sectional profile.
A material is pushed through a die of the desired cross-section.
The extrusion process can be done with the material hot or cold