METHOD OF BROACHING HOLLOW BLANKS

摘要

use: forming process for large hollow billets. the essence of the u0438u0437u043eu0431u0440u0435u0442u0435u043du0438u00a0: u043fu0440u043eu0442u00a0u0436u043au0443 hollow billets u043eu0441u0443u0449u0435u0441u0442u0432u043bu00a0u044eu0442 on u043eu043fu0440u0430u0432u043au0435, whose intermediate section of conical shape with diameter greater u043eu0441u043du043eu0432u0430u043du0438u00a0 equal diameter greater u043eu0441u043du043eu0432u0430u043du0438u00a0 working station and u043au043eu043du0443u0441u043du043eu0441u0442u044cu044e 1 - 2 & deg;.the longitudinal pitch will move on the mandrel in the direction of the smaller ends of the station. 2).