Multiple tool path planning for NC machining of convex pockets without islands

Vosniakos, G; Papapanagiotou, P

dc.contributor.author	Vosniakos, G	en
dc.contributor.author	Papapanagiotou, P	en
dc.date.accessioned	2014-03-01T01:15:43Z
dc.date.available	2014-03-01T01:15:43Z
dc.date.issued	2000	en
dc.identifier.issn	0736-5845	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/13685
dc.subject	CNC	en
dc.subject	pocketing algorithm	en
dc.subject	tool path	en
dc.subject	staircasing	en
dc.subject	contouring	en
dc.subject.classification	Computer Science, Interdisciplinary Applications	en
dc.subject.classification	Engineering, Manufacturing	en
dc.subject.classification	Robotics	en
dc.subject.other	POLYGONAL SURFACES	en
dc.subject.other	ANALYTICAL MODEL	en
dc.subject.other	CUTTING PATH	en
dc.subject.other	OPTIMIZATION	en
dc.subject.other	GENERATION	en
dc.title	Multiple tool path planning for NC machining of convex pockets without islands	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/S0736-5845(00)00025-9	en
heal.identifier.secondary	http://dx.doi.org/10.1016/S0736-5845(00)00025-9	en
heal.language	English	en
heal.publicationDate	2000	en
heal.abstract	This work focuses on machining of pockets with convex angles and containing no islands. The approach is a hybrid contouring - staircasing one. Contouring aims at clearing enough space around the boundary to allow efficient staircasing in the interior. Three tools are foreseen: two for contouring and one for staircasing. The algorithm for contouring is based on creating offsets of the pocket boundary and checking them for self-crossing. Staircasing is based on parametrisation of the tool path with respect to its orientation to the pocket, so as to minimise the tool path length. Machining strategy is complemented by choosing the best combination of diameters of the three tools used. This is simply done by first enumerating all available combinations and then excluding the non-feasible ones, in order to compare the rest according to tool path length (or to machining time when individual feed values are known). The output of the program, which was implemented in Fortran, is the tool path, the CNC part program, which is created automatically, and a numerical comparison of all the tool-angle combinations tried out. A machining simulation based on the CNC program output is conducted on commercial CAM software to demonstrate validity of the result. (C) 2000 Elsevier Science Ltd. All rights reserved.	en
heal.publisher	PERGAMON-ELSEVIER SCIENCE LTD	en
heal.journalName	ROBOTICS AND COMPUTER-INTEGRATED MANUFACTURING	en
dc.identifier.doi	10.1016/S0736-5845(00)00025-9	en
dc.identifier.isi	ISI:000090145700003	en
dc.identifier.volume	16	en
dc.identifier.issue	6	en
dc.identifier.spage	425	en
dc.identifier.epage	435	en