MEC 431 Lecture Notes - Lecture 25: Electrical Discharge Machining, Bandsaw, Dielectric

• School: Ryerson University
• Department: Mechanical Engineering
• Course: MEC 431
• Professor: N/ A

Document Summary

Advantages reproduced in the workpiece. electricity can be machined (eg. tool steels: (ardness of the workpiece is no barrier. Wire edm: a similar process to electrode (or plunge) edm, wire edm uses a wire, much like a standard band-saw, wire edm is used to cut the desired that passes through the workpiece. shape out of the workpiece. Ref: http://www. tech-etch. com/photoetch: work is fed slowly past wire along desired path. 2016-11-08: definition of kerf and overcut in electric discharge wire cutting, electrode wire may be made of brass, copper, tungsten of, with a dia. of between (cid:882). (cid:882)(cid:882)(cid:885) to (cid:882). (cid:882)(cid:883)(cid:884)in. molybdenum. 29: the machining produces a slight overcut of (cid:882). (cid:882)(cid:882)(cid:882)8 to (cid:882). (cid:882)(cid:882)(cid:884)in. Wire edm applications )deal for stamping die components. Since kerf is so narrow, it is often possible to fabricate punch and die: other tools and parts with intricate outline shapes, such as lathe form tools, extrusion dies, and flat templates in a single cut.