激光雕刻加工专用数控系统外文文献.pdfVIP

Available online at ScienceDirect Procedia CIRP 41 ( 2016 ) 998 – 1003 48th CIRPP Conferencce on MANNUFACTURRING SYSTTEMS - CIRRP CMS 20015 AAn Apprroach to Buildingn a Speccialized CNC Syystem foor Laser EEngravinng MMachiningn a a a a Georggi M. Martiinov , Alekksandr I. Obbuhov , Liilija I. Marttinova , Annton S. Griigoriev * a Mosccow State Technoological Universitty STANKIN, VVadkovsky per. 3aa, Moscow 1270555, Russia * Corresponding autthor. Tel.: +7-4999-972-9440; fax: ++7-499-973-38855. E-mail addresss: martinov@ncsyystems.ru Abstract An analysis of laser-dotted engraaving technologgical specifics aand laser-impullse machines coontrol problemss is presented. TThe main problem for matterial processinng with impulsee laser emission is the necesssity to maintainn the impulse frfrequency in a ffixed interval. Any violation of this inteerval isn’t allowwed, because it leads to significcant energy dissppersion betweeen impulses andd, as a result, to uneven materiaal processing. Thee traditional conntrol method wwith impulse confirmation waiiting could be rrealized in any NNC System. Hoowever, it leads to performancce loss andd incomplete usse of machine capabilities. An approach is devveloped via imppulse processinng control basedd on the combinnation of advannce NC blocks scanning mmethod and speeed profile adapttation for impullse frequency limit conditions. Expperiments showw that the devveloped approaach allows to ggreatly inc