DEFORM-Preform Design Lab

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In forming process, an intermediate shape so called preform or blocker is necessary if final forged shape is complex. By using preform shape, lower forming load, uniform strain distribution, no die under filling and reduced die wear can be obtained by introducing smooth metal flow.
Conventional way of designing preform shape is inefficient and time consuming in that it
requires many cross sections and the design will be done in 2 dimension so the designed
cross sections need to be connected each other to make 3 dimensional preform shape.