期刊
CIRP ANNALS-MANUFACTURING TECHNOLOGY
卷 56, 期 1, 页码 335-338出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cirp.2007.05.077
关键词
grinding; nickel; cubic boron nitride (CBN)
Machining data are presented for small diameter, profiled (fir tree root form), single layer/electroplated CBN (1346, B76 and 91) and diamond (D46) grinding wheels, when cutting Udimet 720. Spindles operating at 60,000 and 90,000rpm were employed, with a synthetic polyalphaolefine (PAO) oil based fluid in a down grinding mode on single sided specimens. Operating parameters were selected to reflect finishing conditions. Measured tool wear was lower for CBN grit as compared to diamond however workpiece roughness was lower with Ra approaching 0.75 mu m when using D46 wheels. Higher rotational speed produced lower grinding wheel wear. No workpiece burning was observed irrespective of grit type at the conditions tested.
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