39 KB968 KB30 KB200020242012Hartomacioglu, SelimKöklü, UgurKurt, MustafaMutlu, Bilçenštevilka:3letnik:46str. 205-213ISSN:1580-2949COBISSID:933034URN:URN:NBN:SI:doc-N4LBN4UEenInštitut za kovinske materiale in tehnologijeMateriali in tehnologijeform errorfree-form surfacehrapavost površinejeklomillingnapaka oblikeobdelavaprosto oblikovana površinastellsurface roughnessMinimization of the surface roughness and form error on the milling of free-form surfaces using a Grey relational analysis| Minimizacija hrapavosti površine in oblikovne napake pri obdelavi prostih površin z uporabo Grey odvisnostne analize|The aim of this paper is to assess an experimental analysis of different tool-path strategies with respect to their influences on surface roughness and dimensional machining errors during free-form surface machining using experimental works. For this purpose, the machining of Al7075-T651 material, which is used in the production of free-form surfaces for the die-sinking sector, in particular, was examined using a ball-end mill in a 3-axis CNC machine. The effects of the tool diameters and of the rough and finished machining strategies on the presence and character of form errors and surface roughness were investigated and the results were optimized using a Grey Relational Analysis. The results obtained from these experiments clearly indicate the influence of tool-path strategies and tool diameters on form errors, as well as the importance of the appropriate strategies for reducing the surface roughnessNamen tega dela je bil ovrednotenje analize različnih strategij orodja s stališča vpliva na hrapavost površine in dimenzijsko napako pri prosto oblikovni obdelavi na podlagi preskusov. S tem namenom je bila raziskana zlitina Al7075-T651, ki se uporablja pri izdelavi prosto oblikovanih površin, predvsem pri poglabljanju utorov, z orodjem s kroglasto glavo na tri osnem CNC stroju. Vplivi strategij premera glave orodja, grobe in končne obdelave na prisotnost in naravo napak in hrapavost površine so bili raziskani in rezultati optimizirani z uporabo Grey odvisnostne analize. Rezultati preskusov jasno kažejo vpliv strategije poti in premera orodja na napako oblike in pomen strategij, primernih za zmanjšanje hrapavosti površineTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaInštitut za kovinske materiale in tehnologije