spark machining

spark machining

[′spärk mə‚shēn·iŋ]
(metallurgy)
Cutting metal by repetitive sparking between a tool (the cathode) and the workpiece (the anode).
References in periodicals archive ?
The absence of welding joints in the head results in outstanding strength, while the elimination of conventional boring by drill or electric spark machining results in shorter machining operations, enabling lower cost and short delivery schedules.
Therefore, the finishing of the shape on a highspeed milling machine (a 03 mill; n=20000 rpm) and spark machining of the rib shape, performed after heat treatment by hardening, was necessary (Fig.
Therefore, the finishing of the shape on a high-speed milling machine (a [empty set]3 mill; n=20000 rpm) and spark machining of the rib shape, performed after heat treatment by hardening, was necessary.