METHOD FOR PRODUCING AN IMPROVED LAYER PARTICULAR FOR A DRILL BIT

摘要

An improved method is disclosed of producing an object, such as a drill bit, comprising a core member having a compacted and sintered metal powder layer thereon and a wear-resistant layer isostatically hot compacted over portions of the powder layer. The method enables improved bonding between the layers and between the powder layer and the core, giving rise to very high resistance to wear and to chipping.