A grinding apparatus includes: a grinding stone in which an outer circumferential surface thereof is pressed against the workpiece while being rotated and driven; and a fluid injection apparatus that has a fluid injection nozzle including an injection port from which a fluid is injected to the outer circumferential surface of the grinding stone, and a grinding oil supply apparatus that supplies a grinding oil to a processing point and that includes a grinding oil supply nozzle separate from the fluid injection nozzle, the processing point being an abutting section of the grinding stone and the workpiece, wherein the injection port is arranged so as to face the outer circumferential surface of the grinding stone in a state capable of injecting the fluid to a position different from the processing point in a radial direction of the grinding stone among the outer circumferential surface of the grinding stone.

A grinding apparatus includes: a grinding stone in which an outer circumferential surface thereof is pressed against the workpiece while being rotated and driven; and a fluid injection apparatus that has a fluid injection nozzle including an injection port from which a fluid is injected to the outer circumferential surface of the grinding stone, and a grinding oil supply apparatus that supplies a grinding oil to a processing point and that includes a grinding oil supply nozzle separate from the fluid injection nozzle, the processing point being an abutting section of the grinding stone and the workpiece, wherein the injection port is arranged so as to face the outer circumferential surface of the grinding stone in a state capable of injecting the fluid to a position different from the processing point in a radial direction of the grinding stone among the outer circumferential surface of the grinding stone.

A device for reforming a vessel cavity is provided that includes a central shaft, a central gear coupled to the central shaft, and a plurality of roller gears coupled to the central gear, with each of the plurality of roller gears having a central portion. A proximal support member couples the plurality of roller gears and at least one of the central gear and the central shaft. A plurality of rollers is also provided, each of the plurality of rollers connected to the central portion of each of the plurality of roller gears. In one form, at least one idler member is disposed between the plurality of rollers. A distal support member couples the plurality of rollers and at least one of the central gear and a translation member. Also, a stationary member is secured to a distal portion of the vessel cavity.

A device for reforming a vessel cavity is provided that includes a central shaft, a central gear coupled to the central shaft, and a plurality of roller gears coupled to the central gear, with each of the plurality of roller gears having a central portion. A proximal support member couples the plurality of roller gears and at least one of the central gear and the central shaft. A plurality of rollers is also provided, each of the plurality of rollers connected to the central portion of each of the plurality of roller gears. In one form, at least one idler member is disposed between the plurality of rollers. A distal support member couples the plurality of rollers and at least one of the central gear and a translation member. Also, a stationary member is secured to a distal portion of the vessel cavity.

A tool for processing an inner surface of a seamlessly drawn tube is sized and configured to be inserted into the interior of the tube. The tool has an outer side defining multiple flow channels in the form of grooves arranged adjacently to each other in a circumferential direction of the tool, wherein each groove on the outer side forms a cutting edge and preferably at least two cutting edges. The tool is moved along a longitudinal axis (x) of the tube while simultaneously rotating the tool in the circumferential direction (U) of the tool by applying a gaseous medium (G) to the tool and/or by acting on the tool with an alternating magnetic field to remove contaminations of the tube which protrude from the inner surface.

A tool for processing an inner surface of a seamlessly drawn tube is sized and configured to be inserted into the interior of the tube. The tool has an outer side defining multiple flow channels in the form of grooves arranged adjacently to each other in a circumferential direction of the tool, wherein each groove on the outer side forms a cutting edge and preferably at least two cutting edges. The tool is moved along a longitudinal axis (x) of the tube while simultaneously rotating the tool in the circumferential direction (U) of the tool by applying a gaseous medium (G) to the tool and/or by acting on the tool with an alternating magnetic field to remove contaminations of the tube which protrude from the inner surface.

A method for treating an interior weld joint located along an inner surface of a pipe includes the steps of: (a) advancing an internal grinder device within the pipe to the interior weld joint, wherein the internal grinder device includes a hollow housing that has a first open end and a first grinding implement that is disposed within the hollow housing and coupled thereto with a first biasing member; and (b) controllably rotating the hollow housing to at least a threshold speed at which time and under centrifugal force, the first grinding implement moves from an at rest retracted position to a deployed position in which the first grinding implement extends radially beyond the first open end for contacting and grinding the interior weld joint as the hollow housing and the first grinding implement are rotated.

A method for treating an interior weld joint located along an inner surface of a pipe includes the steps of: (a) advancing an internal grinder device within the pipe to the interior weld joint, wherein the internal grinder device includes a hollow housing that has a first open end and a first grinding implement that is disposed within the hollow housing and coupled thereto with a first biasing member; and (b) controllably rotating the hollow housing to at least a threshold speed at which time and under centrifugal force, the first grinding implement moves from an at rest retracted position to a deployed position in which the first grinding implement extends radially beyond the first open end for contacting and grinding the interior weld joint as the hollow housing and the first grinding implement are rotated.

A method for producing a groove pattern on a cylinder surface includes providing an abrasive module, including an abrasive mesh article and collector block, providing a patterning head, which including the abrasive module and pressing actuator, pressing the abrasive module against the cylinder surface by using the actuator, forming a plurality of grooves on the cylinder surface by causing relative motion between the abrasive module and cylinder surface, and drawing gas through the abrasive mesh article to collect particles released from the cylinder surface. The abrasive mesh article includes a plurality of abrasive grains bonded to a flexible mesh backing, defining openings. The collector block has a curved supporting surface defining openings. The abrasive mesh article is attached to the curved supporting surface by a releasable fastening system. The openings of the flexible mesh backing are in communication with the openings of the collector block via the releasable fastening system.

A method for producing a groove pattern on a cylinder surface includes providing an abrasive module, including an abrasive mesh article and collector block, providing a patterning head, which including the abrasive module and pressing actuator, pressing the abrasive module against the cylinder surface by using the actuator, forming a plurality of grooves on the cylinder surface by causing relative motion between the abrasive module and cylinder surface, and drawing gas through the abrasive mesh article to collect particles released from the cylinder surface. The abrasive mesh article includes a plurality of abrasive grains bonded to a flexible mesh backing, defining openings. The collector block has a curved supporting surface defining openings. The abrasive mesh article is attached to the curved supporting surface by a releasable fastening system. The openings of the flexible mesh backing are in communication with the openings of the collector block via the releasable fastening system.