2026-09-21T00:59:59Z https://www.ideals.illinois.edu/oai-pmh

oai:www.ideals.illinois.edu:2142/83793 2023-07-11 col_2142_5131 col_2142_14787 com_2142_5130 com_2142_9630 com_2142_234

DeVor, Richard E. Kapoor, Shiv G. Vogler, Michael Patrick 2015-09-25T21:12:07Z 2015-09-25T21:12:07Z 10000-01-01 2003 2003 The surface generation process in the micro-endmilling of both single phase and multi-phase workpiece materials was also examined. 508 micron diameter endmills with edge radii of 2 and 5 microns were used to machine slots in ferrite, pearlite and two ductile iron materials at feedrates ranging from 0.25 to 3.0 microns/flute. A surface generation model to predict the surface roughness for the slot floor centerline is then developed based on the minimum chip thickness concept. Two phenomena were found to combine to generate an optimal feedrate for the surface generation of single phase materials, the geometric effect of the tool and process geometry and the minimum chip thickness effect. The surface roughness measurements for the ductile iron workpieces indicate that the micro-milling surface generation process for multi-phase workpiece materials is also affected by the interrupted chip formation process as the cutting edge moves between phases resulting in burrs at the phase boundaries and the associated increases in surface roughness. Made available in DSpace on 2015-09-25T21:12:07Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 3086208.pdf: 8049107 bytes, checksum: cafeca9b7e8df02246990d6dcd8c9368 (MD5) Previous issue date: 2003 Embargo set by: Seth Robbins for item 85074 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs U of I Only 198 p. Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2003. http://hdl.handle.net/2142/83793 (MiAaPQ)AAI3086208 eng Engineering, Industrial On the Modeling and Analysis of Machining Performance in Microendmilling text Mechanical Engineering Mechanical Engineering University of Illinois at Urbana-Champaign Dissertation Ph.D.