The spalling of striking/struck tools

摘要

The recent history of testing striking tools and of investigations of spalling is reviewed. In particular, the field tests conducted by A. H. Burn and the laboratory tests of McIntire and Manning and of J.W.Lodge are considered in detail. Then the macrostructure and microstructure of spall cavities are described along with some aspects of the numerous specifications for striking/struck tools. The availability of new, more spall resistant metals is described and finally, the safety aspects of striking/struck tools in railway applications are reviewed.