For analyzing the factors to weight per meter of hot rolled ribbed bars,the weight per meter of the base bar,transverse rib and longitudinal rib were calculated with Solid Edge V19. The factors to negative allowance,the influence degree in order are base bar,transverse rib and longitudinal rib,and base circle size is the focus to control negative allowance. Therefore,the principle proposal forwarded for the design and process of groove are:designing smaller base circle size and longitudinal rib,reducing the...