A method for the production of engine blocks for internal combustion engines of a light metal alloy with wear-resistant lined cylinder bores

摘要

In a method for the production of cylinder bores with a wear-resistant lining in the engine block of an internal combustion engine composed of a light alloy, sleeves provided with a wear-resistant coating, preferably perforated with hole rims pointing radially outwards, and composed of a material with a melting point or decomposition point below that of the light alloy are used so that the sleeve melts or vapourises when the molten light alloy is poured around it, and a wear-resistant transition zone is left behind on the cylinder bore. IMAGE