期刊
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
卷 27, 期 7-8, 页码 688-692出版社
SPRINGER LONDON LTD
DOI: 10.1007/s00170-004-2255-8
关键词
micro-drilling; precision machining; vibration cutting; vibration drilling
The purpose of this paper is to investigate the effects of assisted vibration on the drilling quality of aluminium alloy (Al 6061-T6) and structure steel (SS41). In the past, research methodology of vibration drilling on small-diameter holes has mainly involved vibrating from the spindle side. In this paper, a new approach to obtain the desired vibration is proposed from the workpiece side, by a self-made, vibrating worktable. Through extensive experiments with a twist drill size of 0.5 mm, we found that hole oversize, displacement of the hole centre, and surface roughness of the drilled wall could be improved with the increase of vibrating frequency and amplitude. Roundness of the drilled hole could also be improved when high amplitude and proper frequency are imposed.
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