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TECHNICAL PAPERS

Effects of Surface Roughness on Multi-Station Mechanical Alignment Processes

[+] Author and Article Information
Neville K. S. Lee, J. Y. Chen, Ajay Joneja

Department of IEEM, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong

J. Manuf. Sci. Eng 123(3), 433-444 (May 01, 2000) (12 pages) doi:10.1115/1.1352019 History: Received July 01, 1999; Revised May 01, 2000
Copyright © 2001 by ASME
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References

Figures

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Geometric contact between a cylinder and a flat surface
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Contact between a cylinder and a rough plate
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Relationship between datum pin and workpiece
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Shifting of reference surface on secondary datum side due to the shifting of the workpiece
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Shifting of workpiece surface on tertiary datum side due to the shifting of the workpiece
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Multi-step processing of workpiece
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Superimposition of datum coordinate frames of workstations 1 and 2
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Simulation flow chart diagram for multi-station
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Measurement of datum pin surface using Tensor II Alpha Step—RMS=0.04 μm
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Measurement of sample type 1 using Tensor II Alpha Step—RMS=0.01 μm
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Measurement of sample type 2 using Tensor II Alpha Step—RMS=1.6 μm
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Theoretical workpiece reference surfaces before moving average—RMS=1 μm
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Moving averaged theoretical surfaces—RMS=1 μm
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Moving averaged theoretical surfaces (a) RMS=0.1 μm (b) RMS=5 μm
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Theoretical datum surface profile—RMS=0.04 μm
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Surfaces generated including waviness
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Schematic of digitized sampling effect
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Comparison of the geometric effect plus deformation effect with geometric effect RMS=0.1 μm, workpiece material is as quenched carbon steel
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Comparison of the geometric effect plus deformation effect with geometric effect RMS=1 μm, workpiece material is as quenched carbon steel
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Comparison of the geometric effect plus deformation effect with geometric effect RMS=5 μm, workpiece material is as quenched carbon steel
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Comparison of the geometric effect plus deformation effect with geometric effect RMS=0.1 μm, workpiece material is plastic
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Comparison of the geometric effect plus deformation effect with geometric effect RMS=1 μm, workpiece material is plastic
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Comparison of the geometric effect plus deformation effect with geometric effect RMS=5 μm, workpiece material is plastic

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