Guide curve based interpolation scheme of parametric curves for precision CNC machining Sun, Y. en_US Wang, Jun en_US Guo, D.M. en_US 2021-11-25T12:38:02Z 2021-11-25T12:38:02Z 2006 en_US
dc.description.abstract Real-time parametric interpolation has played a key role in the computer control of machine tools. To achieve highest quality parts, generated trajectories not only describe the desired toolpath accurately, but also have smooth dynamics profiles. This paper presents a novel parametric interpolator based on guide curve. The relationships between geometric properties and kinematic properties are firstly discussed. Then, with a consideration of the important effect of the curvature of curvilinear path on the machining dynamics, a corresponding formula, which describes the relation of the maximum allowed feed acceleration/deceleration and the maximum allowed rate of change of curvature radius of paths, is built. Thus, based on a near arc parameterization and through modifying the curvature radius curve to deal with corners, key regions and other cases, adaptive feedrate schedule is completed according to the reconstructed smooth curvature radius curve. Consequently, confined chord errors, corners on the path and the acceleration/deceleration capabilities of the machine tool are simultaneously considered and incorporated into the guide curve based parametric interpolation system without using look-ahead scheme. Simulation results indicate the feasibility and precision of the proposed interpolation method. en_US
dc.identifier.issn 0890-6955 en_US
dc.language English
dc.language.iso EN en_US
dc.rights CC BY-NC-ND 3.0 en_US
dc.rights.uri en_US
dc.source Legacy MARC en_US
dc.subject.other Feedrate schedule en_US
dc.subject.other Machining dynamics en_US
dc.subject.other CAD/CAM en_US
dc.subject.other NC machining en_US
dc.subject.other Toolpath en_US
dc.subject.other Manufacturing Engineering not elsewhere classified (290399) en_US
dc.title Guide curve based interpolation scheme of parametric curves for precision CNC machining en_US
dc.type Journal Article en
dcterms.accessRights metadata only access
dspace.entity.type Publication en_US
unsw.identifier.doiPublisher en_US
unsw.relation.faculty Engineering
unsw.relation.ispartofissue 3-4 en_US
unsw.relation.ispartofjournal International Journal of Machine Tools & Manufacture en_US
unsw.relation.ispartofpagefrompageto 235-242 en_US
unsw.relation.ispartofvolume 46 en_US
unsw.relation.originalPublicationAffiliation Sun, Y. en_US
unsw.relation.originalPublicationAffiliation Wang, Jun, Mechanical & Manufacturing Engineering, Faculty of Engineering, UNSW en_US
unsw.relation.originalPublicationAffiliation Guo, D.M. en_US School of Mechanical and Manufacturing Engineering *
Resource type