A machining tool incorporates a shaft having a first end configured to fit into a machining collet. A cutting portion extends from a second end of the shaft. A residual stress inducer is located between the first and second ends and includes a torsion element joined to the shaft at a connection end. A carbide tip is present on a free end opposite the connection end and the torsion element is configured such that a selected rotational speed, altered from a normal cutting speed, causes the carbide tip of the torsion element to contact a workpiece surface.

An automated peening method comprising: providing, adjacent a surface of a workpiece, a robotic arm having a peening tool attached thereto; defining a peening area of the surface of the workpiece; calculating a peening path for the peening tool over the peening area, the peening path substantially covering the peening area and comprising a sequence of movement patterns, wherein a geometric variable of one or more of the movement patterns is modified using an output of a random number generator; and controlling the robotic arm to move the peening tool over the surface of the workpiece to follow the peening path.

A method and apparatus for processing a metallic workpiece with defined edges (e.g., a gear) comprises media blasting of the workpiece by directing a first media against exposed surfaces on the workpiece to increase the root strength of the gear, the blasting causing the defined edges to be radiused or mushroomed, ceasing the media blasting, loading the workpiece into a finishing apparatus, and subjecting the workpiece to a finishing process with a second media, the exposed surfaces on the workpiece being subjected to the finishing process to reduce the radiused edges on the workpiece created from the media blasting. The process of moving the workpiece to the spindle-finishing apparatus from the media blasting may be performed automatically by a machine. Once the workpiece has been subjected to the finishing process with the second media, it may be removed from the spindle-finishing machine, washed, and rinsed with rust inhibitor whereby wear properties of the workpiece are enhanced.

A machine learning device is provided with: an input data obtaining unit that, in burnishing process in which a processing surface of an arbitrary workpiece is surface-treated with an arbitrary tool, obtains as input data processing information including information of the workpiece prior to the burnishing process and information of a processing condition; a label obtaining unit that obtains label data indicating processed state information including a processed state of the workpiece after the burnishing process and surface roughness of the workpiece when the processed state is normal; and a learning unit that carries out supervised learning using the input data and the label data thus obtained to generate a learned model to which processing information of an upcoming burnishing process is input and which outputs processed state information for the burnishing process.

A machine learning device is provided with: an input data obtaining unit that, in burnishing process in which a processing surface of an arbitrary workpiece is surface-treated with an arbitrary tool, obtains as input data processing information including information of the workpiece prior to the burnishing process and information of a processing condition; a label obtaining unit that obtains label data indicating processed state information including a processed state of the workpiece after the burnishing process and surface roughness of the workpiece when the processed state is normal; and a learning unit that carries out supervised learning using the input data and the label data thus obtained to generate a learned model to which processing information of an upcoming burnishing process is input and which outputs processed state information for the burnishing process.

The present invention improves surface roughness by knocking down protruding parts while leaving recessed parts in the surface of a metal product, protrusions/recesses having been formed in said surface via blasting, and improves surface hardness and compressive residual stress. Treatment is performed upon a metal product in which protrusions/recesses have been formed in the surface thereof via blasting. Spherical shot that are less hard than the surface hardness of the metal product and have a particle size that is greater than the width of recessed parts of the protrusions/recesses are sprayed toward and collide against the surface of the metal product as crushing shot, and the protruding parts of the protrusions/recesses formed on the surface of the metal product are selectively knocked down, thereby providing a metal product surface member in which the surface roughness of the metal product has been improved.

A method for deep roll peening a workpiece includes deep roll peening a workpiece by moving the workpiece along a feed path through multiple groups of opposed rollers that are arranged in series. Each group of opposed rollers includes a rim that defines a workpiece engagement surface that exerts a deep roll peening force on the workpiece. A deep roll peening system includes multiple groups of opposed rollers. Each of the opposed rollers is rotatably mounted and has a rim that defines a workpiece engagement surface. The workpiece engagement surfaces are spaced apart from each other by a gap. The groups are arranged in series such that the gaps define a feed path for receiving a workpiece into serial contact with the workpiece engagement surfaces.

A method for deep roll peening a workpiece includes deep roll peening a workpiece by moving the workpiece along a feed path through multiple groups of opposed rollers that are arranged in series. Each group of opposed rollers includes a rim that defines a workpiece engagement surface that exerts a deep roll peening force on the workpiece. A deep roll peening system includes multiple groups of opposed rollers. Each of the opposed rollers is rotatably mounted and has a rim that defines a workpiece engagement surface. The workpiece engagement surfaces are spaced apart from each other by a gap. The groups are arranged in series such that the gaps define a feed path for receiving a workpiece into serial contact with the workpiece engagement surfaces.

Provided is a roller burnishing tool device including a shank; a housing connected to the shank, a connected position of the housing relative to the shank being adjustable; a roller support member supported to be capable of rotating relative to the housing and attached to follow a movement of the housing in a case of adjusting the connected position; tapered rollers supported by the roller support member; a mandrel having a tapered portion matched with the tapered rollers and movable relative to the roller support member; and a tool diameter following mechanism connecting the shank and the mandrel, having a lead groove formed spirally in a front portion of the shank, a pin member capable of moving along the lead groove, a pin member insertion hole formed in the mandrel to insert the pin member therein, and a biasing unit biasing the mandrel forward.

Provided is a roller burnishing tool device including a shank; a housing connected to the shank, a connected position of the housing relative to the shank being adjustable; a roller support member supported to be capable of rotating relative to the housing and attached to follow a movement of the housing in a case of adjusting the connected position; tapered rollers supported by the roller support member; a mandrel having a tapered portion matched with the tapered rollers and movable relative to the roller support member; and a tool diameter following mechanism connecting the shank and the mandrel, having a lead groove formed spirally in a front portion of the shank, a pin member capable of moving along the lead groove, a pin member insertion hole formed in the mandrel to insert the pin member therein, and a biasing unit biasing the mandrel forward.