Manufacturing Industry
EDM drilling picks up speed
Modern Machine Shop, June, 1991 by J.L.C. Wijers
Although drilling with EDM imposes some close process controls, it also offers a means of quickly drilling fine and deep holes in both hard and soft electrically conductive materials. Table 11 illustrates some of the specific job parameters that are routinely achieved. Creative variations of the process have been developed.
Figure 7 shows a setup whereby the workpiece, rather than the electrode, is rotated to even out wear and average the hole. The potential for deep-hole drilling with EDM is just now being explored. There will be much more to come in the future.
COPYRIGHT 1991 Gardner Publications, Inc.
COPYRIGHT 2008 Gale, Cengage Learning
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