01-08-2012, 03:43 PM
DRAWING DIE
DRAWING DIE.pptx (Size: 64.28 KB / Downloads: 27)
CUTTING Operation
Cutting operation are mostly known as shearing operations. Which the unwanted material is removed in the form of slug or scrap. Blanking, piercing or notching, trimming, shaving and nibbling are cutting operation.
Simple Dies
Simple dies or single action dies perform single operation for each stroke of the press slide. The operation may be any be any of the operation listed under cutting or forming dies.
Compound dies
In these dies two or move operations may be performed at one station. Such dies are considered as cutting tools since, only cutting operation are carried out. The washer is produced by simultaneously blanking and piercing operations. Compound dies are more accurate and economical in mass production as compared to single operation dies.
Combination dies
In this die also more than one operation may be performed at one station.
It differs from compound die in that in this die a cutting operation is combined with a bending or drawing operation.
The die ring which is mounted on the die shoe, is counter bored at the bottom to allow the flange of a pad to travel up and down. This pad is help flush with the face of the die by a spring.