Arc saw blades and systems and methods for segmenting components utilizing improved arc saw blades.

An exemplary pipe cutting accessory includes a shaft extending along an axis and having a front end portion a rear end portion configured to be coupled to a tool holder of a power tool. A disc-shaped cutting blade is fixedly coupled to the front end portion of the shaft and configured to rotate about the axis together with the shaft. A roller portion is concentrically received over the front end portion rearward of the cutting blade. The roller portion has a cylindrical outer surface configured to roll along an inside wall of a pipe while the shaft and cutting blade rotate about the axis to cut a pipe from an inside of the pipe. A depth stop may be movably coupled to the shaft or the roller portion and configured to abut an end of the pipe.

Arc saw blades and systems and methods for segmenting components utilizing improved arc saw blades.

Nuclear reactor vessel segmenting utilizing improved arc saw systems and methods.

A tube cutting device for cutting a tube of a waste steam generator including: a body configured to transmit power; a tube-shaped rotary body provided on a side surface of the body and having a horizontal rotary shaft configured to rotate with the power supplied from the body; a plurality of clamps provided along an outer peripheral surface of a first end portion of the rotary body and configured to fix the rotary body to the tube to be cut; a saw provided on a second end portion opposite to the first side end portion of the rotary body and configured to rotate together with the rotary body to cut the tube; and a fitting member configured to be inserted into a hollow portion formed on a center portion of the saw.

A reactor vessel cutting device, including a hoist system; a mechanical cutter; and a cutter carriage secured to the hoist system to be suspended by the hoist system. The cutter is secured to a carriage body of the cutter carriage to be carried by the carriage body. The cutter carriage includes a stabilization system secured to the carriage body and operable to hold the cutter carriage against a vessel wall of the reactor vessel. The cutter carriage is operable to apply the cutter to the vessel wall in a mechanical cutting operation when the cutter carriage is held against the vessel wall by the stabilization system. The hoist system is configured to bear the weight of the cutter and the cutter carriage during the mechanical cutting operation and the stabilization system is configured to carry cutting forces generated during the mechanical cutting operation.