In a ceramic media deburring operation, what effect does compound lubricity have on deburring rate? Our machine is a 25-ft bowl used in single-pass mode with a 15- to 20-min process time. Compound lubricity affects the media cutting rate as much as 30 to 50 percent or more. You can approach burnish finishes even with abrasive media if the compound is extremely lubricious. You will find, however, that some edge breaking occurs even in a lubricious mass, as pointed out in this column in April 1993, written by my predecessor, John Kittredge: "Deburring occurs with non-abrasive media for the first 10 to 15 min or so of a vibratory cycle at a rate almost equal to that of the abrasive products."
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