Electrical discharge sawing uses spark-erosion technology to quickly create blanks from exotic alloys.
In my last blog entry, I mention adiabatic cutting (i.e. high-velocity impact cutting) as an alternative for creating workpiece blanks. Electrical discharge sawing is another atypical blanking process I discovered. EDS can quickly create blanks from titanium, nickel, metal composites and other conductive materials regardless of their hardness. The equipment, which is manufactured by India’s Electronica Machine Tools, is said to be as much as 70 percent faster than wire EDM.
Without an international standard for designating carbide grades or application ranges, users must rely on relative judgments and background knowledge for success.
There are usually better solutions to chatter than just reducing the feed rate. Through vibration analysis, the chatter problem can be solved, enabling much higher metal removal rates, better quality and longer tool life.
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