| 摘要 |
A gamma phase brass coated EDM wire electrode is processed to produce distinct particulate of the brittle gamma phase alloy where these particulate have a uniquely describable distribution of geometric parameters. The distribution of particles determined by analyzing random cross sections of the wire electrode using standard optical metallographic procedures contains a minimum number of particles with a minor axis of less than 1.5 μm and a higher proportion of larger aspect ratio (quotient of the values of major axis and minor axis] particles. Such wire electrodes are found to contain less loose debris than electrodes described in the prior art, i.e. are cleaner than prior art gamma wires without suffering any degradation in cutting speed performance. |
