Optično spremljanje obrabe elektrod pri uporovnem točkovnem varjenju
Ravbar, Vasja ...
V prispevku je predstavljena uporaba metode laserske profilometrije za merjenje sprememb oblike površine elektrodne konice pri uporovnem točkovnem varjenju (UTV). Metoda temelji na projekciji večjega ...števila laserskih žarkov v obliki šopa svetlobnih ravnin na površino elektrode, kjer so zaradi tega vidni vzorci v obliki več medsebojno vzporednih črt oziroma krivulj. Te vzorce detektiramo s kamero, dobljeno sliko digitaliziramo in obdelamo z računalnikom. Na podlagi analize sprememb oblike teh vzorcev, lahko spremljamo spremembe oblike elektrod na samem stroju takoj po kateremkoli izvedenem zvaru. Metoda tako odpira povsem nove možnosti za študij procesa obrabe elektrod pri UTV.
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