FORMATION OF METALLIC TAPE HAVING PROJECTING SECTION BY ROLLING

摘要

PURPOSE:To determine correct different diametral sizes and to improve productivity at the same time while decreasing considerably the positional movement of a rolling material by the backward and forward slip in the stage of rolling the blank metallic material on an anvil to a projecting sectional shape by means of a rolling roller moving back and forth. CONSTITUTION:A tape-shaped metallic blank material 2 fed into the anvil 7 is rolled to the projecting section 3a by moving back and forth the rolling roller 1 in the direction perpendicular to the feed direction thereof. The recess 1a or plane part 1c of the roller 1 is positioned to face the material 2 in a neutral position. The metallic tape having the section 3a is roll-formed without giving a change to the advance position of the material 2 by the forward and backward slip arising during the rolling. The mass production of the products having the exact projecting sectional shape is made possible without providing grooves to the material 2.