26 KB657 KB21 KB199920252008Bračun, DragoGruden, ValterMožina, Janezštevilka:1letnik:549 stranistr. 68-76ISSN:0039-2480COBISSID:10423835URN:URN:NBN:SI:doc-MD5WWN2AenAssociation of Mechanical Engineers and Technicians of Slovenia et al.Zveza strojnih inženirjev in tehnikov Slovenije et al.Strojniški vestnikaluminijaluminumlaserska triangulacijapovršinepreiskava materialatlačno litjeulitkiLaser supported optical control of high pressure aluminium cast products|We present a new method for surface quality control of aluminium high pressure cast products. By this method it is aimed to improve efficiently the existing practice of castings being only visually checked for surface defects such as laminations, non-fills and cold shots. The method is based on laser triangulation principle. The measured cloud of points is analysed using software designed specifically for automatic detection of surface defects. The paper describes a measurement system, measuring procedure focussed on the detection of surface defects and the comparison of the results with a visual inspectionPredstavljamo novo metodo nadzora površine visoko tlačnih ulitkov iz aluminija. Z njo želimo izboljšati dosedanjo prakso, pri kateri se ugotavlja prisotnost površinskih napak kot so dvoslojnosti, nezalitosti in hladni zvari zgolj vizualno. Osnova nove metode je laserska triangulacija. V prispevku opisujemo merilni sistem, postopek meritve, računalnisko obdelavo oblaka izmerjenih točk s poudarkom na odkrivanju površinskih napak ter primerjavo delovanja nove metode z vizualnim pregledomTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaUniverza v Ljubljani, Fakulteta za strojništvo