Disclosed herein are a metal plate including a plurality of pattern portions, a patterning apparatus configured to form a plurality of patterns on the metal plate, and a patterning method using the same. The metal plate to be used in a household appliance includes a plurality of pattern portions in which a hairline pattern is formed on a surface of the metal plate, wherein the plurality of pattern portions includes a first pattern portion having a first hairline pattern and a second pattern portion having a second hairline pattern different from the first hairline pattern.

A cutting apparatus includes a cassette table on which a first cassette in which a frame unit, ring-shaped frame and wafer are housed, and a second cassette in which a simple wafer is housed. A first conveying unit having a first frame holding part holds the ring-shaped frame of the frame unit withdrawn from the first cassette and conveys the frame unit to a chuck table. A first wafer holding part holds the simple wafer withdrawn from the second cassette and conveys the simple wafer to the chuck table. A cutting unit cuts the wafer, and a second conveying unit conveys the frame unit from the chuck table to a cleaning unit. A second wafer holding part holds the cut simple wafer and conveys it from the chuck table to the cleaning unit.

An apparatus for cutting grooves in a ground surface includes a wheeled vehicle with a tool carrier connected to the wheeled vehicle. The tool carrier is rotatable about an axis parallel to the direction of travel of the vehicle and perpendicular to the direction of travel of the vehicle. A grinding tool for cutting grooves in a ground surface is rotatably mounted to the tool carrier. The grinding tool may be movable laterally relative to the vehicle. A rotatable cam is configured so that rotation of the cam causes pivotal movement of the tool carrier relative to the forward frame. Rotation of the cam moves the grinding tool into and out of engagement with the ground surface.

An apparatus for cutting grooves in a ground surface includes a wheeled vehicle with a tool carrier connected to the wheeled vehicle. The tool carrier is rotatable about an axis parallel to the direction of travel of the vehicle and perpendicular to the direction of travel of the vehicle. A grinding tool for cutting grooves in a ground surface is rotatably mounted to the tool carrier. The grinding tool may be movable laterally relative to the vehicle. A rotatable cam is configured so that rotation of the cam causes pivotal movement of the tool carrier relative to the forward frame. Rotation of the cam moves the grinding tool into and out of engagement with the ground surface.

The present invention relates to a method and a tool for removing a partial region of a coating from a substrate, in which the partial region to be removed is removed by a machining process in such a way that an undercutting of the partial region of the coating that is to be removed takes place. For the undercutting of the partial region of the coating that is to be removed, at least one machining tool that is rotating relative to the substrate about an axis of rotation is moved relative to the substrate along a direction of advancement that runs parallel to a surface having the coating, wherein a layer of the substrate that is directly adjacent to the coating is also removed together with the coating. Considered in the direction of advancement, the tool thereby penetrates deeper into the substrate than into the coating to be removed.

A method for cleaning a receiving groove formed on a rotor of an axial flow machine, the receiving groove serving to receive a blade root of a rotor blade is provided. In the method, an elongate base body of a machining tool, the base body having an abrasive surface at least in regions, is introduced into the receiving groove and therein is moved back and forth while machining is performed, wherein the outer contour of the base body is adapted to the contour of the receiving groove to be cleaned, in such a manner that when the base body is in the state inserted in the receiving groove it contacts the wall of the receiving groove in a substantially form-fitting manner such that it acts as a guide body during the back-and-forth movement. Also provided is a machining tool for carrying out the method.

A method for cleaning a receiving groove formed on a rotor of an axial flow machine, the receiving groove serving to receive a blade root of a rotor blade is provided. In the method, an elongate base body of a machining tool, the base body having an abrasive surface at least in regions, is introduced into the receiving groove and therein is moved back and forth while machining is performed, wherein the outer contour of the base body is adapted to the contour of the receiving groove to be cleaned, in such a manner that when the base body is in the state inserted in the receiving groove it contacts the wall of the receiving groove in a substantially form-fitting manner such that it acts as a guide body during the back-and-forth movement. Also provided is a machining tool for carrying out the method.

Described is a method for grinding workpieces, which comprise at least one cylindrical and profiled portion each, on one and the same grinding machine. The workpiece is ground initially in a first grinding operation in a first clamping in the grinding machine, said first grinding operation being followed by a second grinding operation once the first clamping has been released and then, before the start of the second grinding operation, a second clamping has been generated.

A method is disclosed for grinding grooves on workpieces using a profiled grinding wheel, the profile of which is crushed. A reshaping crush process includes driven crush rollers, each being controlled on the basis of a rotational speed and current consumption. Thus, relative advancement between the grinding wheel and crush roller is controlled according to the speed and current consumption. A grinding machine is also disclosed for grinding a workpiece, wherein the workpiece is held by means of a workpiece spindle head. A crush device comprising a crush roller with a dedicated rotary drive is provided on the grinding machine. The grinding wheel is applied to the crush roller in order to dress the grinding wheel profile. The crush roller has a profile-crushing portion for profile-crushing the grinding wheel with a first dressing volume and a reshaping profile-crushing portion for profile-crushing the grinding wheel with a second dressing volume.

A chuck for a machine tool having a rotation spindle with a main axis of rotation. The chuck comprises a base plate, a first rotatable plate eccentrically mounted on the base plate, a second rotatable plate eccentrically mounted on the first rotatable plate, balancing means for aligning a principal axis of inertia of the chuck with the main axis of rotation and a holding mechanism. The chuck is provided with an actuating mechanism for angularly displacing the first rotatable plate around a first rotation axis over a first angle of rotation and/or the second rotatable plate around a second rotation axis over a second angle of rotation such that the position of the object with respect to the main axis of rotation can be altered.