A broaching tool is held during the conduct of repetitive duplicate rotary broaching operations on serially presented workpieces. The broaching tool is engaged serially with each workpiece for rotation with the engaged workpiece during a corresponding rotary broaching operation. Each workpiece has a given configuration and the broaching tool has a prescribed configuration placed at an initial orientation for establishing a broached configuration placed at a same predetermined orientation relative to the given configuration of each workpiece. Upon completion of a rotary broaching operation on a workpiece, the broaching tool is returned to the initial orientation of the prescribed configuration in preparation for a duplicate rotary broaching operation on a subsequent serially presented workpiece.

A high-speed grooving method includes: a dummy machining step of machining a dummy groove in the surface of the workpiece by moving the cutting tool relative to the workpiece in a first direction, then turning the cutting tool 180 degrees, and subsequently further machining the dummy groove by moving the cutting tool in a second direction opposite to the first direction; a step of measuring a displacement of the cutting edge of the cutting tool, caused by the inversion of the cutting tool, from the dummy groove formed in the surface of the workpiece; a forward-stroke machining step of machining a groove with the cutting tool in the surface of the workpiece by moving the cutting tool relative to the workpiece in the first direction; a cutting tool inversion step of turning the cutting tool 180 degrees after completion of the forward-stroke machining step, thereby setting the direction of the cutting edge of the cutting tool to a direction opposite to the first direction so that the workpiece can be machined during a return stroke of the cutting tool; a correction step of correcting the relative position between the workpiece and the cutting tool so as to eliminate the displacement; and a return-stroke machining step of further machining the groove, which has been machined in the forward-stroke machining step, with the cutting tool by moving the cutting tool relative to the workpiece in the direction opposite to the first direction.

A high-speed grooving method includes: a dummy machining step of machining a dummy groove in the surface of the workpiece by moving the cutting tool relative to the workpiece in a first direction, then turning the cutting tool 180 degrees, and subsequently further machining the dummy groove by moving the cutting tool in a second direction opposite to the first direction; a step of measuring a displacement of the cutting edge of the cutting tool, caused by the inversion of the cutting tool, from the dummy groove formed in the surface of the workpiece; a forward-stroke machining step of machining a groove with the cutting tool in the surface of the workpiece by moving the cutting tool relative to the workpiece in the first direction; a cutting tool inversion step of turning the cutting tool 180 degrees after completion of the forward-stroke machining step, thereby setting the direction of the cutting edge of the cutting tool to a direction opposite to the first direction so that the workpiece can be machined during a return stroke of the cutting tool; a correction step of correcting the relative position between the workpiece and the cutting tool so as to eliminate the displacement; and a return-stroke machining step of further machining the groove, which has been machined in the forward-stroke machining step, with the cutting tool by moving the cutting tool relative to the workpiece in the direction opposite to the first direction.

A manufacturing method of a metal member includes performing first shaving on a first surface perpendicular to a thickness direction of a metal plate, in a first portion of the metal plate by moving a cutting edge in a direction along the first surface. In the metal plate, the thickness of the first portion is reduced to be smaller than the thickness of a second portion by the first shaving.

A scraper tool for deburring an edge of an aircraft turboshaft engine casing is arranged to be mounted in a milling device. The scraper tool includes a body including, on a first end, a connection for the milling device and, on a second end, a deburring module including a turning lathe platelet including at least one cutting edge arranged so as to deburr the casing edge. The deburring module includes a guide adapted to contact the edge to be deburred so as to follow the profile of the edge to be deburred without modifying the orientation of the turning lathe platelet.

A scraper tool for deburring an edge of an aircraft turboshaft engine casing is arranged to be mounted in a milling device. The scraper tool includes a body including, on a first end, a connection for the milling device and, on a second end, a deburring module including a turning lathe platelet including at least one cutting edge arranged so as to deburr the casing edge. The deburring module includes a guide adapted to contact the edge to be deburred so as to follow the profile of the edge to be deburred without modifying the orientation of the turning lathe platelet.

A broaching tool is held during the conduct of repetitive duplicate rotary broaching operations on serially presented workpieces. The broaching tool is engaged serially with each workpiece for rotation with the engaged workpiece during a corresponding rotary broaching operation. Each workpiece has a given configuration and the broaching tool has a prescribed configuration placed at an initial orientation for establishing a broached configuration placed at a same predetermined orientation relative to the given configuration of each workpiece. Upon completion of a rotary broaching operation on a workpiece, the broaching tool is returned to the initial orientation of the prescribed configuration in preparation for a duplicate rotary broaching operation on a subsequent serially presented workpiece.

An apparatus configured to convert a rotary machine to a non-rotary machine is provided. The apparatus may include a tool body that engages a rotary head of a CNC mill and a rotation restraint member that is fixed at a stationary position relative to a rotational axis of the rotary head. An arm of the tool body may engage the rotation restraint member to prevent rotation of the tool body. A cutting tool may be coupled to the tool body such that rotation thereof is also fixed. The arm of the tool body may include an elongated aperture that allows for slight pivoting of the tool body and the cutting tool to facilitate chip removal and cutting in opposing directions. Related methods are also provided.

An apparatus configured to convert a rotary machine to a non-rotary machine is provided. The apparatus may include a tool body that engages a rotary head of a CNC mill and a rotation restraint member that is fixed at a stationary position relative to a rotational axis of the rotary head. An arm of the tool body may engage the rotation restraint member to prevent rotation of the tool body. A cutting tool may be coupled to the tool body such that rotation thereof is also fixed. The arm of the tool body may include an elongated aperture that allows for slight pivoting of the tool body and the cutting tool to facilitate chip removal and cutting in opposing directions. Related methods are also provided.

A broaching tool is held during the conduct of repetitive duplicate rotary broaching operations on serially presented workpieces. The broaching tool is engaged serially with each workpiece for rotation with the engaged workpiece during a corresponding rotary broaching operation. Each workpiece has a given configuration and the broaching tool has a prescribed configuration placed at an initial orientation for establishing a broached configuration placed at a same predetermined orientation relative to the given configuration of each workpiece. Upon completion of a rotary broaching operation on a workpiece, the broaching tool is returned to the initial orientation of the prescribed configuration in preparation for a duplicate rotary broaching operation on a subsequent serially presented workpiece.