000			02001nam a22001577a 4500
082			_a670
100			_aAhmed, Armaghan _9130791
245			_aInvestigating the Impact of Process Parameters on the Hardness of UV Resin printed part in Stereo Lithography / _cArmaghan Ahmed
264			_aIslamabad : _bSMME- NUST; _c2025.
300			_a81p. _bSoft Copy _c360cm
500			_ahis study examines the effect of major masked stereolithography (mSLA) process variables, namely, layer thickness, build orientation, and exposure time, on hardness of ultraviolet (UV) resin printed components. A Taguchi L9 orthogonal array design of experiments was used to perform nine experimental runs with Shore D hardness as the response variable measured per ASTM D2240. The parametric design allowed systematic testing of the parameteric effects with minimum number of trials. The results were interpreted using statistical methods, including analysis of variance (ANOVA), signal-tonoise (S/N) ratio analysis, regression modeling in order to determine the best processing conditions. Results show that exposure time is the most noticeable variable, with a contribution to the total variation in hardness of about 70 percent, build orientation and layer thickness added 13.5 per cent and 12.8 per cent respectively, and showed significant, but minor, effects on the response. The S/N ratios main effects plot indicated that the best parameter set to obtain maximum hardness is 0.100 mm layer thickness, 45deg build orientation, and 21 seconds exposure time. Finally, the exposure time is identified as the essential control parameter of the hardness, and orientation and thickness as the secondary refinements. The research provides a sound framework for process optimization within SLA.
650			_aMS Design and Manufacturing Engineering _9119567
700			_aSupervisor: Dr. Shahid Ikram Ullah Butt _9122372
856			_uhttp://10.250.8.41:8080/xmlui/handle/123456789/55448
942			_2ddc _cTHE
999			_c614970 _d614970