Abstract: A method of supplying a coolant to a machine tool includes reading, from a machining program, a called code of at least one coolant assignment code, each of the at least one coolant assignment code being to instruct to open or close a plurality of valves provided in a plurality of coolant supply conduits, respectively, the plurality of coolant supply conduits being installed in the machine tool to be connected to a plurality of nozzles, each of the at least one coolant assignment code being to instruct a degree of discharge of the coolant from a pump to the plurality of nozzles. The opening and closing of the plurality of valves are controlled based on the called code. The pump is controlled to discharge the coolant by the degree of discharge based on the called code.

Abstract: A friction stir welding tool includes a shoulder having one end which is configured to be in contact with a workpiece, and a probe provided at the one end to protrude from the one end to a tip end of the probe along a rotation axis. The probe includes a chamfered portion, a spiral groove portion, and an inclined face provided on an end face of the tip end of the probe. The spiral groove portion and the chamfered portion are alternately provided in a circumferential direction on an outer circumferential surface. The spiral groove portion includes a plurality of grooves provided spirally around the rotation axis such that the plurality of grooves approaches the one end along the rotation direction. The inclined face is continuous with the chamfered portion and approaching the one end in the rotation direction.

Abstract: An additive manufacturing method includes cutting a cutting region in a workpiece to heat the workpiece so that a temperature of an additive manufacturing region which is in the cutting region becomes a preheating lower limit temperature or above, and adding melted metal to the additive manufacturing region whose temperature has been a preheating lower limit temperature or above.

Abstract: A machine tool includes a rotation device, a tool holder, and a power feeding actuator. The tool holder is configured to be rotated with a tool about a first axis. A power receiver is provided in an outer circumferential edge region of the tool holder. At least one sensor is electrically connected to the power receiver. The power feeding actuator is configured to supply electric power to the tool holder via the power receiver. The power feeding actuator includes a power feeder configured to supply the electric power to the power receiver, and a first mover configured to move the power feeder between a power feeding position and a retracted position. The power feeder is configured to supply the electric power to the power receiver at the power feeding position. The power feeder is not configured to supply the electric power to the power receiver at the retracted position.

Abstract: A laser-beam working machine includes a laser head rotatable around a main axis and movable along the main axis, a first chuck configured to irradiate a laser beam to the workpiece, and a second chuck provided between the laser head and the first chuck along the main axis to be rotatable around the main axis. The first chuck includes a grip configured to hold a workpiece rotatably around the main axis. The second chuck includes a plurality of guide rollers provided around the main axis to form an opening between the plurality of guide rollers through which the workpiece is configured to pass through. The plurality of guide rollers is configured to move toward and away from the main axis to change a size of the opening so that the plurality of guide rollers guides the workpiece along the main axis and the grip passes through the opening.

Abstract: A tool load displaying method for a machine tool includes inputting a machining program that specifies a plurality of tools used during machining work and that specifies machining processes which constitute the machining work and each of which is performed by using each of the plurality of tools. At least one piece of load information corresponding to each of the plurality of tools during each of the at least one machining process is calculated. Selected load information is selected from the at least one piece of load information. The plurality of tools are displayed.

Abstract: Systems, methods, and computer program products for monitoring a health condition of a tool. Operational data is collected from a machine while the machine is operating in a predetermined manner with the tool in each of at least two known health conditions. A plurality of features is extracted from the operational data, a training dataset is generated from the extracted features, and an analytic model is trained using the training dataset. The analytic model can then be used to determine the health condition of the tool by providing features extracted from operational data received from one or more field machines to the analytic model. The analytic model may then determine a health condition of the tool in the field machine based on like features extracted from the operational data from the one or more field machines.

Abstract: A machine tool includes a table, a tool support, a mover, a first wall, a first cover, and a first support. The table is configured to support a workpiece and configured to move in a first direction and a second direction opposite to the first direction. The tool support is configured to support a tool with which the workpiece is machined. The mover is configured to move the table in the first direction and the second direction. The first wall has a first opening and is provided on a side of the first direction with respect to the tool support. The first cover protrudes from the first wall in the first direction through the first opening. The first support supports the first cover such that the first cover is rotatable around an axis of the first support.

Abstract: A machine tool includes a tool holder configured to hold a grindstone. A workpiece holder is configured to hold a workpiece. At least one actuator is configured to move the tool holder in a movement direction relative to the workpiece holder. A motor is different from the at least one actuator and is configured to move one holder out of the tool holder and the workpiece holder along a control axis. Actuator control circuitry is configured to control the at least one actuator to move the tool holder in the movement direction. Motor control circuitry is configured to control the motor to control the one holder to be stationary in a direction along the control axis. Contact detection circuitry is configured to detect a contact between the grindstone and the workpiece based on a change in a control value of the motor.

Abstract: A device for friction stirring a workpiece material includes a body, a spindle, a driver, and a biasing element. The spindle is configured to rotate around a rotational axis. The driver is rotationally coupled to the spindle. The biasing element supports the driver and is configured to apply a biasing force in an axial direction, wherein the biasing element axially overlaps the spindle.

Abstract: An input assistance method includes: a plurality of steps in which setting-information based on which the machine tool is configured to be controlled to machine a workpiece so as to make a product is input. A setting step in which a selected information is to be input is selected among the plurality of steps. The selected information of the plurality of steps constitutes the setting-information. A setting interface via which the selected information is input is displayed. Whether inputting the selected information has been completed is determined. Information indicating that inputting the selected information has been completed is displayed, when inputting the selected information is determined to have been completed. The plurality of steps includes a first step in which a shape of the product is input and a second step in which a shape of the workpiece and a material of the workpiece are input.

Abstract: A workpiece installation method includes obtaining a reference image that shows a reference workpiece whose posture has been adjusted, setting workpiece reference lines on a boundary of a first image area occupied by the reference workpiece in the reference image, obtaining a measurement image that shows a workpiece, generating, using a processor, a measurement combined image in which workpiece reference lines are superimposed on the measurement image and which shows the workpiece reference lines pass through positions respectively identical to workpiece reference line positions, and adjusting a posture of the workpiece such that a boundary of a second image area occupied by the workpiece in the measurement combined image is shown to be substantially parallel to or substantially coincident with the workpiece reference lines.

Abstract: A machine tool management system includes a machine tool, a memory, a display, and a control circuit. The control circuit is configured to record, in the memory, a time point at which detection information with respect to a machine tool is detected and the detection information corresponding to the time point; determine selected detection information among the detection information to satisfy a determination condition; record, in the memory, the selected detection information corresponding to the time point; display a list of the selected detection information according to predetermined display items; extract from the memory at least part of the detection information including one of the selected detection information corresponding to one display item selected among the display items listed on the display; and to display a graph of a change over time in data included in the at least part of the detection information.

Abstract: A friction stir welding (FSW) tool includes a head, a tool holder and a body between the head and the tool holder and attached to the head and the tool holder. The body may include a plurality of cooling fins. An interior of the body may include a pressure sensor, a temperature sensor, a torque sensor, and a communication node in electronic communication with the pressure sensor, the temperature sensor, and the torque sensor. The communication node may be in Bluetooth communication with a computing device.

Abstract: A workpiece support includes a rotating shaft, a second support, a first support, and an air supplier. The rotating shaft is configured to support a workpiece at the leading end portion. The second support supports the rotating shaft rotatably about a first axis of the rotating shaft. The first support is provided between a tool and the second support along the first axis and has a through hole into which a guide bushing unit is configured to be inserted and into which the leading end portion of the rotating shaft is configured to be inserted. The guide bushing unit is configured to support the workpiece when the guide bushing unit is in the through hole. An ejection opening is provided on an inner circumferential surface of the through hole. The air supplier is configured to supply air to the first support via the ejection opening.

Abstract: A workpiece support includes a rotating shaft configured to support a workpiece at a leading end portion, a second support supporting the rotating shaft rotatably about a first axis and configured to move the rotating shaft along the first axis, a first support provided between the tool and the second support along the first axis and including a through hole into which a guide bushing unit is configured to be inserted and into which the leading end portion of the rotating shaft is configured to be inserted, and an attachment provided in contact with an outer surface of the leading end portion of the rotating shaft. The guide bushing unit is configured to support the workpiece when the guide bushing unit is in the through hole. At least a part of the attachment is displaceable in a direction away from the first axis.

Abstract: A coolant discharger includes a rotator, a fluid passage, and a nozzle. The rotator is rotatable about a rotation axis together with a workpiece and has a through hole extending along the rotation axis. The fluid passage is provided in the through hole to supply a coolant toward the workpiece. The nozzle is connected to the rotator to be connected to the fluid passage to discharge the coolant from the nozzle toward the workpiece in a discharging direction away from the rotation axis. At least a part of the nozzle is movable along the rotation axis.

Abstract: A machine tool includes a workpiece spindle being rotatable about a rotation axis of the workpiece and configured to hold a workpiece such that the workpiece. A tool holding device is rotatable about a tool rotation axis and configured to hold a turning tool via which turning is performed on the workpiece. A movement mechanism is configured to move the tool holding device such that the turning tool rotates relatively to the workpiece toward an arbitrary direction perpendicular to the rotation axis of the workpiece. Control circuitry is configured to execute a machining program, to perform the turning, which includes an additional code which designates a target cutting direction of the arbitrary cutting direction, and to control the movement mechanism to move the turning tool in the target cutting direction with respect to the workpiece while the control circuitry executes the additional code.

Abstract: A workpiece support device includes a shaft rotatable about a shaft rotation axis of the shaft, a first support, a first reciprocating mechanism, and a first connecting rod having one end and another end. The shaft extends along a longitudinal direction of a workpiece. The first support includes a first support roller that is rotatable about a first roller rotation axis orthogonal to the shaft rotation axis and that is configured to contact the workpiece to support the workpiece. The first reciprocating mechanism has one end connected to the first support and is configured to reciprocate in a first expansion-contraction axis direction. The one end of the first connecting rod is rotatably connected to the first support. The another end of the first connecting rod is connected to the shaft such that the another end of the first connecting rod is rotatable together with the shaft.

Abstract: A stir pin includes a base end portion configured to be held rotatably about a first axis, a stirring portion provided to project from a shoulder member to be rotatable about the first axis together with the base end portion, and an intermediate portion including a second portion connected to the stirring portion to be rotatable about the first axis together with the stirring portion and having a second diameter passing through the first axis, and a first portion provided between and connected to the base end portion and the second portion to be rotatable about the first axis together with the base end portion and the second portion. The first portion has an end surface to which the second portion is connected and which has a maximum diameter larger than the second diameter. The end surface has a ring-shaped receiving surface configured to receive a material waste.