Computer aided process planning for multi-axis CNC machining using feature free polygonal CAD models

dc.contributor.advisor Matthew C. Frank
dc.contributor.author Joshi, Ashish
dc.contributor.department Industrial and Manufacturing Systems Engineering
dc.date 2018-08-11T12:54:38.000
dc.date.accessioned 2020-06-30T02:59:35Z
dc.date.available 2020-06-30T02:59:35Z
dc.date.copyright Thu Jan 01 00:00:00 UTC 2015
dc.date.embargo 2016-02-16
dc.date.issued 2015-01-01
dc.description.abstract <p>This dissertation provides new methods for the general area of Computer Aided Process Planning, often referred to as CAPP. It specifically focuses on 3 challenging problems in the area of multi-axis CNC machining process using feature free polygonal CAD models.</p> <p>The first research problem involves a new method for the rapid machining of Multi-Surface Parts. These types of parts typically have different requirements for each surface, for example, surface finish, accuracy, or functionality. The CAPP algorithms developed for this problem ensure the complete rapid machining of multi surface parts by providing better setup orientations to machine each surface.</p> <p>The second research problem is related to a new method for discrete multi-axis CNC machining of part models using feature free polygonal CAD models. This problem specifically considers a generic 3-axis CNC machining process for which CAPP algorithms are developed. These algorithms allow the rapid machining of a wide variety of parts with higher geometric accuracy by enabling access to visible surfaces through the choice of appropriate machine tool configurations (i.e. number of axes).</p> <p>The third research problem addresses challenges with geometric singularities that can occur when 2D slice models are used in process planning. The conversion from CAD to slice model results in the loss of model surface information, the consequence of which could be suboptimal or incorrect process planning. The algorithms developed here facilitate transfer of complete surface geometry information from CAD to slice models.</p> <p>The work of this dissertation will aid in developing the next generation of CAPP tools and result in lower cost and more accurately machined components.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/etd/14844/
dc.identifier.articleid 5851
dc.identifier.contextkey 8330934
dc.identifier.doi https://doi.org/10.31274/etd-180810-4428
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath etd/14844
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/29028
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/etd/14844/Joshi_iastate_0097E_12048.pdf|||Fri Jan 14 20:27:33 UTC 2022
dc.subject.disciplines Industrial Engineering
dc.subject.keywords Industrial Engineering
dc.subject.keywords Bone implant machining
dc.subject.keywords Computer Aided Process Planning
dc.subject.keywords Multiple surface part machining
dc.subject.keywords Polygonal model machining
dc.subject.keywords Rapid machining
dc.subject.keywords Setup planning
dc.title Computer aided process planning for multi-axis CNC machining using feature free polygonal CAD models
dc.type article
dc.type.genre dissertation
dspace.entity.type Publication
relation.isOrgUnitOfPublication 51d8b1a0-5b93-4ee8-990a-a0e04d3501b1
thesis.degree.level dissertation
thesis.degree.name Doctor of Philosophy
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