The present invention provides a fluidic clamping device (100) comprising a sleeve (110) for clamping and holding a movable part (200). The sleeve (110) comprises a central element (111) having a cross-section in a longitudinal direction of the central element (111), comprising a cavity configured to receive the movable part (200). The fluidic clamping device (100) is characterized in that the sleeve (110) further comprises at least one chamber (112) disposed on an outer periphery of the central element (111) and extending along a longitudinal direction of the central element (111), the at least one chamber (112) configured to containing a fluid, wherein the fluidic clamping device (100) is configured to pressurize an interior of the at least one chamber (112) with a first predetermined fluidic pressure or a second predetermined fluidic pressure, wherein the first predetermined fluidic pressure is lower than the second predetermined fluidic pressure, and wherein the central element (111) is configured to be in frictional contact with the movable part (200) at at least a portion of an inner periphery of the central element (111) and to clamp and hold the movable part (200) in a first state in which the interior of the at least one chamber (112) is pressurized with the first fluidic pressure, and wherein the central element (111) is configured not to be in frictional contact with the movable part (200) at any portion of the inner periphery of the central element (111) in a second state in which the interior of the at least one chamber (112) is pressurized with the second fluidic pressure.

The invention relates to a cutting tool, particularly for use in a tool chuck of a machine tool, including a tool shaft with a center longitudinal axis and a tool head. The tool head is connected to the tool shaft via a positive-locking connection, which locks the movement in the direction of the center longitudinal axis and the positive-locking connection is supplemented by a bonded connection, particularly a soldered connection.

A method for reloading a single-flute drill comprising a shaft made of a hard metal and a drill head that is connected to the shaft and is made of a hard metal, is characterized by the following steps: removing a worn drill head from the shaft; integrally bonding a new drill head to the shaft.

This disclosure relates to a cutting tool, having a main body, a cutting head, which is joined to the free end of the main body and is formed, by primary shaping, as a sintered piece provided with at least one cutting edge, and a cooling lubricant feed, which is led through the main body axially and which has a cooling lubricant distributor inserted into the cutting head for redirecting cooling lubricant into the region of the at least one cutting edge. According to this disclosure, a plurality of protruding spacers for keeping a gap clear with respect to the cooling lubricant distributor and/or the main body are sintered on a supporting surface of the cutting head as primary shaped elements.

This disclosure relates to a cutting tool, having a main body, a cutting head, which is joined to the free end of the main body and is formed, by primary shaping, as a sintered piece provided with at least one cutting edge, and a cooling lubricant feed, which is led through the main body axially and which has a cooling lubricant distributor inserted into the cutting head for redirecting cooling lubricant into the region of the at least one cutting edge. According to this disclosure, a plurality of protruding spacers for keeping a gap clear with respect to the cooling lubricant distributor and/or the main body are sintered on a supporting surface of the cutting head as primary shaped elements.

The present invention relates to a multi-material rotary cutting tool (1) and a method for manufacturing such a tool that includes at least one continuous or substantially continuous cutting edge (8, 9) made of at least two different successive materials. The extremity or top (10) of the tool is a point off-centered in relation to the axis of rotation (5) of the tool.

A tool for machining a workpiece. The tool comprises a first tool component which comprises a first internal coolant bore and, on a first face side end, a first connection interface, wherein the first connection interface comprises a first end face for attaching a joining material as well as an elevation which protrudes from the first end face, wherein a first coolant outlet of the first internal coolant bore is arranged on the elevation. In addition, the tool comprises a second tool component which comprises a second internal coolant bore and, on a second face side end, a second connection interface, wherein the second connection interface comprises a second end face for attaching the joining material as well as a recess provided in the second end face, wherein a second coolant outlet of the second internal coolant bore is arranged in the recess. The first tool component and the second tool component are joined together by means of the joining material attached to the first and second end face in such a manner that the first coolant outlet is aligned with the second coolant outlet.

A tool for machining a workpiece. The tool comprises a first tool component which comprises a first internal coolant bore and, on a first face side end, a first connection interface, wherein the first connection interface comprises a first end face for attaching a joining material as well as an elevation which protrudes from the first end face, wherein a first coolant outlet of the first internal coolant bore is arranged on the elevation. In addition, the tool comprises a second tool component which comprises a second internal coolant bore and, on a second face side end, a second connection interface, wherein the second connection interface comprises a second end face for attaching the joining material as well as a recess provided in the second end face, wherein a second coolant outlet of the second internal coolant bore is arranged in the recess. The first tool component and the second tool component are joined together by means of the joining material attached to the first and second end face in such a manner that the first coolant outlet is aligned with the second coolant outlet.

Disclosed herein is workpiece support including a body comprising a radially contractible portion including a plurality of wall sections each having an inner wall surface, the wall sections being separated from one another by slots, and a biocompatible liner comprising a plurality of liner sections fixed to the inner wall surfaces of the plurality of wall sections. An assembly containing the workpiece support, and methods of making and using the workpiece support, also are disclosed.

The present invention provides a fluidic clamping device (100) comprising a sleeve (110) for clamping and holding a movable part (200). The sleeve (110) comprises a central element (111) having a cross-section in a longitudinal direction of the central element (111), comprising a cavity configured to receive the movable part (200). The fluidic clamping device (100) is characterized in that the sleeve (110) further comprises at least one chamber (112) disposed on an outer periphery of the central element (111) and extending along a longitudinal direction of the central element (111), the at least one chamber (112) configured to containing a fluid, wherein the fluidic clamping device (100) is configured to pressurize an interior of the at least one chamber (112) with a first predetermined fluidic pressure or a second predetermined fluidic pressure, wherein the first predetermined fluidic pressure is lower than the second predetermined fluidic pressure, and wherein the central element (111) is configured to be in frictional contact with the movable part (200) at at least a portion of an inner periphery of the central element (111) and to clamp and hold the movable part (200) in a first state in which the interior of the at least one chamber (112) is pressurized with the first fluidic pressure, and wherein the central element (111) is configured not to be in frictional contact with the movable part (200) at any portion of the inner periphery of the central element (111) in a second state in which the interior of the at least one chamber (112) is pressurized with the second fluidic pressure.