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Analiza trdote na laserskih navarih iz orodnega jekla : diplomska naloga visokošolskega strokovnega študija
Kvas, Nejc
V diplomskem delu so prikazane raziskave navarjanja dodajnega materiala Dievar premera 0,6 mm na mase vzorcev od 10 do 200 g izdelanih iz materiala Utop MO1. Varili smo z Nd:YAG laserjem s povprečno ...energijo laserskega strela 30 J. V prvem delu diplomske naloge smo opisali varjenje na splošno, lasersko navarjanje, orodna jekla, princip meritev temperature s termoelementi, pripravo metalografskih vzorcev in merjenje trdote. V drugem delu oziroma praktičnem delu diplomske naloge smo predstavili uporabljen material in popisali opremo ter postopke dela, ki so bili uporabljeni pri raziskavah. Rezultati so prikazani v grafih in tabelah. Po končanih meritvah lahko sklepamo, da masa vzorca, na katerega navarjamo, ključno vpliva na raztros trdote na navaru, medtem ko na samo povprečno trdoto nima nobenega učinka. Pri meritvah dimenzij navarov se je izkazalo, da je dimenzija uvara lokalno pogojena z mikro lokacijo, saj je prekrivanje laserskih strelov premajhno, da bi lahko govorili o homogenosti. Globina uvara, neodvisno od mase, z razdaljo navara pada.
Type of material - undergraduate thesis
; adult, serious
Publication and manufacture - Ljubljana : [N. Kvas], 2015
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