2013年8月6日星期二

diamond tool wear

Diamond tool wear mechanism is more complex, can be divided into macro-and

micro-abrasion wear, the edge polishing pads  former mainly mechanical wear, which is dominated by

thermal chemical wear. Diamond grinding tool breakage common form for the

former flank wear, flank wear and edge chipping. In single crystal diamond tool

sharpening process, requires the diamond blade  wear to the grinding tool to meet the

requirements, but if the wear generated may damage not have a good grinding

before the flank. The edge cracking (i.e. chipping) is on the edge of the local

stress exceeds the capacity of the diamond cutting tool occurs, generally the

diamond crystal (111) cleavage plane of the micro-damage caused. In the ultra-

precision machining, diamond tool edge radius of the cutting edge is relatively

small, which itself is hard and brittle materials, and because of its

anisotropy and (111) surfaces prone to cleavage, with the concrete core bits  vibration of the tool

blade and grinding wheel grit the mouth of the impact of the role, it is often

accompanied produce chipping.

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