MATERIAL DEVELOPMENT TOOL ELECTRODE FOR ELECTRICAL DISCHARGE TUFTING
The physical-mechanical and electrical properties of sintered materials based on copper powders of various grades and dispersion used for tool electrode for electrical discharge tufting. Developed the technology of sintering copper nanopowder without pressure, including reduced compaction pressure recovery annealing compact. It is shown that during sintering of copper nanosized powders formed almost non-porous fine-grained structure that provides high strength and electrical properties, and a substantially higher wear resistance electrical discharged tufting. The properties of the composite electrode-based tools with the addition of copper powder of molybdenum powders, tungsten carbide, titanium carbide. Titanium carbide electrode has better wear resistance than tungsten carbide. Low wear of the electrode was in a powder based on nanosized adding molybdenum.