Optimisation of press-brake bending operations in 3D space

Kontolatis, N; Vosniakos, G-C

dc.contributor.author	Kontolatis, N	en
dc.contributor.author	Vosniakos, G-C	en
dc.date.accessioned	2014-03-01T02:11:51Z
dc.date.available	2014-03-01T02:11:51Z
dc.date.issued	2012	en
dc.identifier.issn	09565515	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/29965
dc.subject	Collision detection	en
dc.subject	Dimensional accuracy	en
dc.subject	Genetic algorithms	en
dc.subject	Process planning	en
dc.subject	Sheet bending	en
dc.subject.other	3-D problems	en
dc.subject.other	3-D space	en
dc.subject.other	Bending sequence	en
dc.subject.other	Collision detection	en
dc.subject.other	Dimensional accuracy	en
dc.subject.other	Expert knowledge	en
dc.subject.other	Expert rule	en
dc.subject.other	Handling time	en
dc.subject.other	Interference detection	en
dc.subject.other	Mechanical parts	en
dc.subject.other	Optimisations	en
dc.subject.other	Sheet bending	en
dc.subject.other	Sheet metal bending	en
dc.subject.other	Stochastic search	en
dc.subject.other	Bending (forming)	en
dc.subject.other	Genetic algorithms	en
dc.subject.other	Process planning	en
dc.subject.other	Sheet metal	en
dc.subject.other	Three dimensional	en
dc.subject.other	Optimization	en
dc.title	Optimisation of press-brake bending operations in 3D space	en
heal.type	journalArticle	en
heal.identifier.primary	10.1007/s10845-010-0384-5	en
heal.identifier.secondary	http://dx.doi.org/10.1007/s10845-010-0384-5	en
heal.publicationDate	2012	en
heal.abstract	Sheet metal bending processes are applied in a multitude of mechanical parts. The process involves optimising the sequence of designated bends taking into account the total processing and handling time, avoiding collisions of the sheet metal with tools and machine and respecting the dimensional accuracy constraints of the part. Experienced operators employ expert rules to define possible different feasible sub-optimal sequences that lead to the desired final shape. The expert knowledge is replaced in this work by stochastic search using a classic genetic algorithm. In addition, dimensional accuracy issues are introduced by determining machine stopper positions. Interference detection libraries employed in connection to the search nature of the approach enabled coping with the full 3D problem instead of quasi 2D problems dealt with in literature. Optimum bending sequence, respective suitable bending tools and machine stopper positions for each bending stage result from the algorithm and are demonstrated with examples. © Springer Science+Business Media, LLC 2010.	en
heal.journalName	Journal of Intelligent Manufacturing	en
dc.identifier.doi	10.1007/s10845-010-0384-5	en
dc.identifier.volume	23	en
dc.identifier.issue	3	en
dc.identifier.spage	457	en
dc.identifier.epage	469	en