Tool removal function modeling and processing parameters optimization for bonnet polishing
نویسندگان
چکیده
منابع مشابه
Modeling and Optimization of Laser Polishing Process
Laser polishing is a finishing process based on melting material, with the objective of improving surface topography. Some operating parameters must be taken into consideration, such as laser power, feed rate, offset, and overlapping. Moreover, because of its dependence on the primary process, the initial topography has also an impact on the final result. This study describes a quadratic model,...
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The abrasion mechanism in solid-solid contact mode of the chemical mechanical polishing (CMP) process is investigated in detail. Based on assumptions of plastic contact over wafer-abrasive and pad-abrasive interfaces, the normal distribution of abrasive size and an assumed periodic roughness of pad surface, a novel model is developed for material removal in CMP. The basic model is = removed, wh...
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In the process of form control using bonnet polishing an influence function is of vital importance for establishing material removal rates. However, the effects of polishing cloth, workpiece hardness and polishing parameters (such as precess angle, head speed, tool pressure and tool offset) on influence function when polishing CoCr alloys are not yet established and these factors affect the det...
متن کاملParametric modeling of edge effects for polishing tool influence functions.
Computer controlled polishing requires accurate knowledge of the tool influence function (TIF) for the polishing tool (i.e. lap). While a linear Preston's model for material removal allows the TIF to be determined for most cases, nonlinear removal behavior as the tool runs over the edge of the part introduces a difficulty in modeling the edge TIF. We provide a new parametric model that fits 5 p...
متن کاملBonnet Polishing of Cobalt Chrome Alloys for Artificial Implants
............................................................................................................................. 3 ACKNOWLEDGEMENT ....................................................................................................... 4 TABLE OF CONTENTS ........................................................................................................ 5 LIST OF FIGURES .........
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ژورنال
عنوان ژورنال: International Journal of Optomechatronics
سال: 2016
ISSN: 1559-9612,1559-9620
DOI: 10.1080/15599612.2016.1223236