首页|Measurement of Spindle Thermal Growth on a Machine Intended for Micro / Meso Scale Milling
Measurement of Spindle Thermal Growth on a Machine Intended for Micro / Meso Scale Milling
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Trans Tech Publications Ltd
Micro milling is gaining ground as the preferred process for the manufacture of micro/meso-scale components in conventional workpiece materials, in particular for miniature moulds and tooling inserts (～ 60HRC), for the plastics injection moulding industry. Following a brief literature review on microscale milling and associated machine tool/tooling developments, experimental results are presented in relation to spindle thermal growth for a compensated/cooled spindle operating at up to 60,000 rpm, designed to accommodate the machining of meso-scale/micro-scale components. The work involved investigation of spindle warm up and cool down rates for speeds ranging from 30,000 - 60,000 rpm and subsequently the evaluation of spindle growth using both non-contact and contact measuring systems. Growth levels of up to 16um were detected despite active spindle cooling and the incorporation of a standard compensation algorithm within the control system. Modification to spindle acceleration and deceleration rates reduced error levels by up to 50%.
micro-millingcuttingspindle thermal growth
J.B. Saedon、S.L. Soo、D.K. Aspinwall
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Machining Research Group, School of Mechanical Engineering, University Of Birmingham, Edgbaston, Birmingham, United Kingdom Faculty of Mechanical Engineering, Universiti Teknologi MARA, Malaysia
Machining Research Group, School of Mechanical Engineering, University Of Birmingham, Edgbaston, Birmingham, United Kingdom
NETL
NSTL
Trans Tech Publications Ltd
