The uniformity of remaining volume on rough-machined sculptured surface parts

Krimpenis, A; Vosniakos, GC

dc.contributor.author	Krimpenis, A	en
dc.contributor.author	Vosniakos, GC	en
dc.date.accessioned	2014-03-01T01:32:12Z
dc.date.available	2014-03-01T01:32:12Z
dc.date.issued	2009	en
dc.identifier.issn	0268-3768	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/20072
dc.subject	Sculptured surfaces	en
dc.subject	Rough machining	en
dc.subject	Levene test	en
dc.subject	Remaining volume	en
dc.subject.classification	Automation & Control Systems	en
dc.subject.classification	Engineering, Manufacturing	en
dc.subject.other	TOOL PATH GENERATION	en
dc.subject.other	CENTRIFUGAL IMPELLER	en
dc.title	The uniformity of remaining volume on rough-machined sculptured surface parts	en
heal.type	journalArticle	en
heal.identifier.primary	10.1007/s00170-008-1767-z	en
heal.identifier.secondary	http://dx.doi.org/10.1007/s00170-008-1767-z	en
heal.language	English	en
heal.publicationDate	2009	en
heal.abstract	In rough machining of parts with sculptured surfaces, two main objectives are usually considered: machining time and overall removed material at the end of the roughing phase. The outcome of that phase is critical for the subsequent finishing phase. This paper proposes a method for measuring roughed part quality through calculation of the local difference between the roughed part geometry and the ideally finished part geometry. The method calculates the height from a point lying on the roughed surface to its projection on the ideally finished part surface. Using the API of a CAD system for this purpose proves computationally inefficient. Therefore, a mean distance between a triangle of the roughed surface triangular mesh and the ideally finished part surface region lying in a suitable envelope is calculated instead. The calculation is repeated not for all triangles of the mesh, but for a sample as low as 3%, which, according to the Levene statistical test suffices, thereby, reducing computational cost by orders of magnitude. The method ultimately yields a single figure, i.e. the standard deviation of local differences between the roughed and finished part, normalized by the mean difference. The concept was tested on sculptured surface parts of various mechanical and operational properties and was proven efficient in all test cases.	en
heal.publisher	SPRINGER LONDON LTD	en
heal.journalName	INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY	en
dc.identifier.doi	10.1007/s00170-008-1767-z	en
dc.identifier.isi	ISI:000268120100006	en
dc.identifier.volume	43	en
dc.identifier.issue	9-10	en
dc.identifier.spage	896	en
dc.identifier.epage	906	en