PRODUCTION OF ERECTION SECTIONS WITH COGGED EDGES AT TANDEM STAND ROLL-FORMING MILL

摘要

FIELD: process engineering.SUBSTANCE: invention relates to metal forming, particularly, to production of erection sections at roll forming mills. Forming is combined with cog shaping at the step of section angle bending at mill first stand by knurling rolls mounted without clearance on one key at upper shaft. At second stand, cog height is increased by knurling rolls free running on the shaft and self-aligning by cogs pre-formed at first stand.EFFECT: higher efficiency and precision.