Description

This paper highlights the importance of proper coating selection and precise finished contours for drawing machine parts such as capstans (also called blocks or drums), stepcones, sheaves, and rollers. It describes the available types of hard coatings (various carbides, ceramics, and metallic alloys) and the specific applications for which each is best suited. Emphasis is placed on the need to establish and accurately reproduce the appropriate tapers that will facilitate smooth climbing for the entire range of wire types and sizes that will be drawn.