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Trochoidal Tool Paths for Pocket Machining with Full Control of the Tool Engagement Angle.

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Bibliographische Detailangaben
Titel: Trochoidal Tool Paths for Pocket Machining with Full Control of the Tool Engagement Angle.
Autoren: Held, Martin1 held@cs.sbg.ac.at, Pfeiffer, Josef1 jpfeiffer@cs.sbg.ac.at
Quelle: Computer-Aided Design & Applications. 2025, Vol. 22 Issue 5, p731-747. 17p.
Schlagwörter: *MACHINING, *MACHINERY, VORONOI polygons, MACHINE tools, ANGLES
Abstract: We extend and improve the MATHSM pocketing strategy by Elber, Cohen and Drake (Comput. Aided Des. 2005) to obtain trochoidal tool paths inside of planar pockets bounded by straight-line segments and circular arcs: We compute a dynamic spacing of the machining circles such that the engagement angle stays below a user-specified maximum engagement angle along the entire tool path. Since the amount of material removed is directly linked to the engagement angle, this effectively bounds the material removal along the entire path (for any given maximum feedrate). As a further improvement, we maintain a model of the area already machined by the tool as the tool moves along the path. Experiments clearly show that our improvements tend to result in substantially shorter tool paths compared to our implementation of the original MATHSM method, while guaranteeing that the engagement angle does not exceed the user-specified limit. [ABSTRACT FROM AUTHOR]
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Beschreibung
Abstract:We extend and improve the MATHSM pocketing strategy by Elber, Cohen and Drake (Comput. Aided Des. 2005) to obtain trochoidal tool paths inside of planar pockets bounded by straight-line segments and circular arcs: We compute a dynamic spacing of the machining circles such that the engagement angle stays below a user-specified maximum engagement angle along the entire tool path. Since the amount of material removed is directly linked to the engagement angle, this effectively bounds the material removal along the entire path (for any given maximum feedrate). As a further improvement, we maintain a model of the area already machined by the tool as the tool moves along the path. Experiments clearly show that our improvements tend to result in substantially shorter tool paths compared to our implementation of the original MATHSM method, while guaranteeing that the engagement angle does not exceed the user-specified limit. [ABSTRACT FROM AUTHOR]
ISSN:16864360
DOI:10.14733/cadaps.2025.731-747