Non-ferrous sheet or strip of non-ferrous metal or alloy, in particular aluminium, and processes for its manufacture

摘要

Deep-drawable aluminum sheet or strip wherein the surface of a roller is blasted with broken cast steel to profile the roller, the roller is used to roll the sheet or strip to impart a microroughness consisting predominantly of steep-flank slender peaks separated by troughs thereto, and the peaks are then soft-annealed.