Abstract: A method for producing a cutting tool including a tool body including a hard coating, the method comprising: applying the hard coating to the tool body at least in an area of a cutting edge, a flank, and a chipping surface; depositing the hard coating on a surface of the tool body, of the cutting tool in an area of the cutting edge, of the flank adjacent to the cutting edge, and of the chipping surface adjacent to the cutting edge; sharpening the cutting edge that is provided with the hard coating and that forms a dull rounded edge by partially removing the hard coating in the area of the flank of the cutting edge by laser machining to form a sharpened cutting edge so that an angle ? is enclosed between a first geometric plane in which a surface of the tool body extends.

Abstract: A method for laser machining a workpiece, the method including producing a predetermined workpiece surface on the workpiece by removing material from the workpiece through a laser beam of a laser of a laser machining device, wherein the laser machining device is configured to align the workpiece received in the workpiece fixing device relative to the laser beam and to move the laser beam relative to the workpiece; aligning the workpiece and the laser beam of the laser relative to one another during the machining so that the beam axis of the laser beam encloses an angle ? between 1° and 10° with a tangent to the predetermined workpiece surface in a respective point where the beam axis of the laser beam intersects the predetermined workpiece surface.

Abstract: A method and a device for laser machining a workpiece, wherein a predetermined outer workpiece shape with a contour is produced on the workpiece by removing material using a laser beam from a laser machining device that includes a workpiece fixing device, which receives and fixes the workpiece, a movement device, which moves the workpiece fixing device relative to a device base, and a laser, which generates a laser beam directed along a beam axis, and a laser deflection device that deflects the laser beam in a controlled manner. A movement of the workpiece, a guidance of the laser beam, and an advancing movement of the workpiece and/or the laser beam are performed out in a synchronized manner when performing the method.

Abstract: A hollow-fiber membrane. The hollow-fiber membrane is made from a polymeric blend comprising an aromatic sulfone polymer and polyoxazoline; wherein the hollow-fiber membrane comprises an inner surface facing towards its lumen, an outer surface facing outwards and an intermediate wall having a wall thickness; wherein the hollow-fiber membrane is an integrally asymmetric, permeable hollow-fiber membrane.

Abstract: An asymmetric membrane. The asymmetric membrane includes a membrane wall with a first and a second porous surface and an interior situated between the surfaces; a first asymmetrical region towards the first surface; a second asymmetrical region towards the second surface; wherein the asymmetric membrane is made from a polymeric blend comprising an aromatic sulfone polymer and poly (2-oxazoline); and wherein the asymmetric membrane is in the form of a flat sheet.

Abstract: An apparatus for orienting and positioning a workpiece (4) relative to a laser beam (3) of a laser processing machine is proposed. The apparatus is equipped with an apparatus base (5), with a workpiece locating device (6) which receives the workpiece (4) to be machined and with a movement device (7) exhibiting at least three axes which moves the workpiece locating device (6) relative to the apparatus base (5). The movement device (7) is equipped with a rigid body (12) and with a first rotary drive which generates a torque around an axis of rotation B and drives the rigid body (12) to rotate around the axis of rotation B relative to the machine base (5). On the rigid body (12) is arranged a first linear drive which displaces a first carriage (13) on the rigid body (12) along the axis Xw.

Abstract: An apparatus for orienting and positioning a workpiece (4) relative to a laser beam (3) of a laser processing machine is proposed. The apparatus is equipped with an apparatus base (5), with a workpiece locating device (6) which receives the workpiece (4) to be machined and with a movement device (7) exhibiting at least three axes which moves the workpiece locating device (6) relative to the apparatus base (5). The movement device (7) is equipped with a rigid body (12) and with a first rotary drive which generates a torque around an axis of rotation B and drives the rigid body (12) to rotate around the axis of rotation B relative to the machine base (5). On the rigid body (12) is arranged a first linear drive which displaces a first carriage (13) on the rigid body (12) along the axis Xw.

Abstract: A device for centering a longitudinal workpiece fixed on a spindle includes a support body linearly displaced along a support body axis. The support body and support body axis are aligned substantially parallel to an axis of rotation of the spindle. A first support element movably arranged on the body supports the workpiece or a workpiece receiving part, and a second support element movably arranged on the body supports the workpiece or a workpiece receiving part. The first support element can be linearly displaced in a first direction and is rotatably arranged about a first axis of rotation on the support body and the second support element can be linearly displaced in a second direction different from the first direction and is rotatably arranged about a second axis of rotation on the support body.

Abstract: Disclosed is a device for workpiece centring for a longitudinal workpiece (2) that is fixed on a spindle (1), comprising a support body (11, 47, 73, 103), which can be linearly displaced along a support body axis (7), wherein the support body (11, 47, 73, 103) and the support body axis (7) can be aligned substantially parallel to an axis of rotation (8) of the spindle (1), a first support element (9, 45, 71, 91, 111) which is movably arranged on the body and which supports, from a first side, the workpiece (2) or a workpiece receiving part (60) that receives the workpiece (2), and a second support element (10, 46, 72, 92, 112) which is movably arranged on the body and which supports, from a second side, the workpiece (2) or a workpiece receiving part (60) that receives the workpiece (2), wherein the first support element (9, 45, 71, 91, 111) can be linearly displaced in a first direction of displacement (23, 48) and is rotatably arranged about a first axis of rotation (23a, 48a) on the support body (11, 47, 7

Abstract: A method for machining a workpiece is proposed where a laser beam and/or a workpiece are moved relative to each other and a cutting edge is produced on the workpiece by means of the removal of material by laser ablation. First, initial alignment of the workpiece (1) and/or the laser beam (2) relative to each is performed. Then an initial removal of material from the workpiece (1) by the laser beam (2) is carried out. An initial section (4) of the workpiece (1) is removed. Then the alignment of the workpiece (1) and laser beam (2) relative to each other is changed. The second alignment process performed differs from the first alignment process of the workpiece (1) and laser beam (2) relative to each other. In a second removal of material from the workpiece (1) a second section (12, 18, 24) of the workpiece (1) is removed with the laser beam (2?, 2?, 2??). The cutting edge (16, 23, 29) is produced at the end of the second material removal process.

Abstract: The multi-component mixer is characterized by great simplicity of manufacture, use and mounting in the installation. A semi-rigid tube is fitted onto two joining pieces held by two collars. Components of the product to be mixed enter the tube at one end, and after stirring takes place, the product, ready to use, is discharged at the other end.