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TECHNICAL PAPERS

Influence of Thermal Effects on Hole Quality in Dry Drilling, Part 2: Thermo-Elastic Effects on Hole Quality

[+] Author and Article Information
Shiva Kalidas, Shiv G. Kapoor, Richard E. DeVor

Department of Mechanical and Industrial Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801-2906

J. Manuf. Sci. Eng 124(2), 267-274 (Apr 29, 2002) (8 pages) doi:10.1115/1.1458014 History: Received October 01, 2000; Revised September 01, 2001; Online April 29, 2002
Copyright © 2002 by ASME
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References

Figures

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Variation of the average radius of the hole along the axial depth for test conducted in the presence of cutting fluids with uncoated HSS drills
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Variation of the average radius of the hole along the axial depth for test conducted in the absence of cutting fluids with uncoated HSS drills
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Variation of the average radius of the hole along the axial depth for test conducted in the absence of cutting fluids with coated carbide drills
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Measured and predicted errors in (a) the presence of cutting fluid (Test Condition #1 in Part 1) and (b) the absence of cutting fluid (Test Condition #5 in Part 1) drilled at 1600 rpm and 0.083 mm/rev with HSS drills
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Measured and predicted errors in (a) the presence of cutting fluid (Test Condition #4 in Part 1) and (b) the absence of cutting fluid (Test Condition #8 in Part 1) drilled at 2200 rpm and 0.162 mm/rev with HSS drills
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Measured and predicted errors in the absence of cutting fluid (Test Condition #7 in Part 1) drilled at 1600 rpm and 0.162 mm/rev with HSS drills
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Measured and predicted errors for dry drilling at (a) 1600 rpm and 0.083 mm/rev (Test Condition #9 in Part 1) and (b) at 2200 rpm and 0.162 mm/rev (Test Condition #12 in Part 1) with MoS2 coated carbide drills
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The development of radial errors with increasing penetration depth for test condition 5
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The development of radial errors with increasing penetration depth for test condition 8
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Distribution of workpiece temperature distribution at test condition 5 (a) and 8 (b)
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Axi-Symmetric workpiece domain shape and prescribed displacement boundaries for the thermo-elastic model
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Zones of Primary and Secondary surface generation in the drilling process
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Magnified schematic representation of the deformation of the workpiece boundaries at the drill/workpiece interface
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Illustration of the nodal displacements used in obtaining relation 6
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Schematic of the measurement method used in constructing the hole profile with the aid of the CMM
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Three-dimensional rendition of the scaled error (Eq. (8)) profile obtained from drilling at 1600 rpm and 0.083 m/rev in the presence of cutting fluids (test condition 1 in Part 1)

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