Degree Type
Dissertation
Date of Award
2003
Degree Name
Doctor of Philosophy
Department
Industrial and Manufacturing Systems Engineering
First Advisor
Ranga Narayanaswami
Abstract
Wavelets permit multiresolution analysis of curves and surfaces. A complex curve can be decomposed using wavelet theory into lower resolution curves. The low-resolution (coarse) curves are similar to rough-cuts and high-resolution (fine) curves to finish-cuts in numerical controlled (NC) machining.;In this project, we investigate the applicability of multiresolution analysis using B-spline wavelets to NC machining of contoured 2D objects. High-resolution curves are used close to the object boundary similar to conventional offsetting, while lower resolution curves, straight lines and circular arcs are used farther away from the object boundary.;Experimental results indicate that wavelet-based multiresolution tool path planning improves machining efficiency. Tool path length is reduced, sharp corners are smoothed out thereby reducing uncut areas and larger tools can be selected for rough-cuts.
DOI
https://doi.org/10.31274/rtd-180813-8808
Publisher
Digital Repository @ Iowa State University, http://lib.dr.iastate.edu
Copyright Owner
Junhua Pang
Copyright Date
2003
Language
en
Proquest ID
AAI3118250
File Format
application/pdf
File Size
98 pages
Recommended Citation
Pang, Junhua, "Multiresolution analysis as an approach for tool path planning in NC machining " (2003). Retrospective Theses and Dissertations. 736.
https://lib.dr.iastate.edu/rtd/736
