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Why Orbital Riveting
Process
Orbital Riveting Process is one of the most versatile process of
cold forming of metals. The deforming force has to be so large that
the stresses in the deforming region reaches the value of YIELD
STRESS of that material. At this value of stress the material starts
flowing and the riveting head is formed. In conventional method the
force is applied by a hammer or by a pneumatic or hydraulic cylinder
on a punch. Theoretically the riveting force required is the yield
stress of the material multiplied by the area of the rivet shank in
contact with the punch.
In ORBITAL riveting process the riveting tool (or punch) is
inclined with respect to the rivet axis. This reduces the area of
contact between the punch and the rivet shank. Thus the riveting
force required is reduced drastically. The inclined riveting tool
also rotates around the axis of the rivet. This result in very
gentle deformation of the material.
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