| Summary: | 碩士 === 國立高雄應用科技大學 === 模具工程系 === 104 === For the purpose of simulated the process of plate on T-section compression by roll forming, the finite element software Deform 3D was used. The main selected material was A6061 aluminum which was most usually used for industry, setting up the reduction as fixed 10 percent on the protrusion at middle of the plate, and gradually increased the reduction on the side of plate by 15 percent, 20 percent, 25 percent and 30 percent.
By the way of symmetric compression of same rollers radius roll forming when A6061 aluminum was used, investigated the influences during roll forming including the load on roller, width spread ratio and curvature of product by changing up parameters including thickness ratio of plate, gap width ratio of top roller, width of plate and coulomb friction coefficient, then according these results, then comparing with different materials including Brass-CDA-110 and SUS304 stainless steel that had different strength coefficient and hardening exponent. By the way of asymmetric compression of different radius rollers roll forming, investigate the influences during roll forming by changing up diameter ratio of rollers and coulomb friction on the plate contacting both top and bottom rollers. Finally, set reductions of plate fixed on middle for 10 percent and side for 20 percent, and investigated the influences of different coulomb friction coefficient and roller diameter for SUS304 stainless steel plate which had relatively highest strength coefficient and hardening exponent was between A6061 and Brass-CDA-110 on T-section compression by symmetric of same rollers radius roll forming.
According to results from simulations of A6061 aluminum on T-section com-pression by symmetric of same rollers radius roll forming, when thickness ratio of plate and gap width ratio of the top roller increases, the curvature of product decreases, when coulomb friction coefficient and width of plate increases, the width spread ratio of product decreases. By the way of asymmetric of different rollers radius roll forming, when roller diameter ratio increased, the curvature of product trended to be flat. According to results from simulations of SUS304 stainless steel on T-section compression by symmetric of same rollers radius roll forming, when smaller diameter of roller was used and decreased coulomb friction coefficient, the product would adhere to bottom roller, even caused damages during the roll forming process.
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