Abstract:
The principal properties which affect springback are known; these
are modulus, yield-strength and rate of work hardening. A sheet of
1.0% Cr/O, 3% Mo in an steel (0.064" x 36" X 126") has been tested in
an attempt to map out the variation in these and other relevant
properties and so to see whether this property variation could be the
cause of the unsatisfactory roll-forming behaviour experienced, (Fig. 1).
Finally, various heat-treatments have been tried, to determine their
affect on relevant mechanical properties and their variation. Testing
has been carried out on the Instron tensile testing machine and heat-treatment
in a conventional laboratory furnace.
