Abstract: A cutting electrode head for a handheld electrical discharge machining (EDM) device comprising: a housing; a cutting electrode supported in the housing, and configured to move from a retracted position to an extended position along an electrode axis (C) to cut a workpiece; and an actuator supported in the housing and movable along a movement axis (E) which is at an angle to the electrode axis (C), wherein movement of the actuator along the movement axis (E) causes the cutting electrode to move between its retracted and extended positions.

Abstract: A spline cleaning device for cleaning splines formed within a component of a gas turbine engine. The spline cleaning device comprises: a central support; a central support sleeve that surrounds and is movable with respect to the central support; a scraper having protrusions that substantially correspond to the splines, the scraper being attachable to the central support sleeve, and configured to remove surface contaminants from the surface of the splines; and a collector sump that is attachable to the central support and configured to collect the surface contaminants that have been removed from the surface of the splines.

Abstract: An electrode guide assembly for an EDM process includes a guide tube having a first end and a second end, a fluid feed portion, a fluid return portion, and an electrode. The guide tube has a set of at least two supporting protrusions, with the protrusions projecting radially inwardly from an inner diametral surface of the guide tube. The electrode is slidably accommodated within the guide tube, with an outer diametral surface of the electrode abutting against the set of supporting protrusions. The first end of the guide tube is in fluid communication with the second end of the guide tube to thereby provide a fluid feed channel, and the second end of the guide tube is in fluid communication with the first end of the guide tube to thereby provide a fluid return channel.

Abstract: A cutting electrode head for a handheld electrical discharge machining (EDM) device comprising: a housing; a cutting electrode supported in the housing, and configured to move from a retracted position to an extended position along an electrode axis (C) to cut a workpiece; and an actuator supported in the housing and movable along a movement axis (E) which is at an angle to the electrode axis (C), wherein movement of the actuator along the movement axis (E) causes the cutting electrode to move between its retracted and extended positions.

Abstract: An electrode guide assembly for an EDM process includes a guide tube having a first end and a second end, a fluid feed portion, a fluid return portion, and an electrode. The guide tube has a set of at least two supporting protrusions, with the protrusions projecting radially inwardly from an inner diametral surface of the guide tube. The electrode is slidably accommodated within the guide tube, with an outer diametral surface of the electrode abutting against the set of supporting protrusions. The first end of the guide tube is in fluid communication with the second end of the guide tube to thereby provide a fluid feed channel, and the second end of the guide tube is in fluid communication with the first end of the guide tube to thereby provide a fluid return channel.