Abstract: The present invention relates to a rod-shaped tool holder (1) having a length (I) for the attachment of at least one machining cutting bit (2). The tool holder (1) is configured for being clamped at a first end (4) and has a second free end (3) and optionally a secondary support between the clamping point (4) and the at least one cutting bit (2). In operation, the tool holder oscillates in higher order bending oscillations about at least one node (6) located on a curvilinear axis (x) extending from the first end. The at least one cutting bit (2) is positioned substantially at the node (6) in a distance from the free end (3), towards the first end (4).

Abstract: A damper includes at least one substantially longitudinal damping body with two end surfaces and one substantially longitudinal surface between. The damping body is placed in a substantially longitudinal cavity, which includes a cavity surface, with a damping fluid that includes a liquid and a gas. At least one of the cavity surface, end surfaces or longitudinal surface is broken, and the damping body can pulsate in the cavity when the damper is in operation.

Abstract: A device for internal chips cutting machining in a bore having a unit for breaking up chips by internal chip cutting machining in the bore. The device includes a principal element with a longitudinal axis and with at least one movable cutter head with a cutter that can be moved essentially perpendicular to the longitudinal axis of the principal element. The device also includes a mechanism for linear motion. A nozzle for flushing of the cutter fluid on the cutter is located onto and can be moved together with the cutter head. A fluid duct is in connection with the nozzle and has a source for cutter fluid at high pressure.

Abstract: The present invention relates to a rod-shaped tool holder (1) having a length (I) for the attachment of at least one machining cutting bit (2). The tool holder (1) is configured for being clamped at a first end (4) and has a second free end (3) and optionally a secondary support between the clamping point (4) and the at least one cutting bit (2). In operation, the tool holder oscillates in higher order bending oscillations about at least one node (6) located on a curvilinear axis (x) extending from the first end. The at least one cutting bit (2) is positioned substantially at the node (6) in a distance from the free end (3), towards the first end (4).

Abstract: A system with a container (1) and a tool holder (20) having two ends (21, 22). One of the ends of the tool holder is adapted to be secured to a machine tool and the other end is adapted for attaching a cutting edge or a cutting edge carrying unit. The tool holder includes an internal cavity (23) surrounded by a cavity wall. The cavity accommodates the container. One end of the cavity is adapted for connection to a supply for a cooling medium and the other end is connected to an outlet for cooling medium. The cavity furthermore includes an opening (25) for installation of the container. At least one gap for leading the cooling medium is formed between the container and the cavity wall. The container can be installed in a machine tool, and the container can be used to accommodate one or several sensors for measuring parameters or for receiving a damping system.

Abstract: The invention relates to a device for damping vibrations and/or controlling the flexion of an object in machining, said device comprising at least one force exchange device which could be a force applying device or a damping device. A such force applying device is for applying a force having a force component directed at right angles to the surface of the object and/or for applying a moment to the object. A damping device of this type is for absorbing vibrations from the object and is adapted to absorb a force component directed at right angles to the surface of the object or to absorb a moment from the object.

Abstract: The present invention concerns a system for fixing a cutting head to an adapter for a machine tool. The cutting head includes a first linear flange, a second linear flange substantially parallel to the first linear flange and a unit for holding a cutting bit. A holding jaw is provided for being fixed to the adapter and for engagement with at least one of the linear flanges on the cutting head, and a clamping device for clamping the at least one holding jaw between the at least one flange of the cutting head and the adapter. At least one further clamping device is connected to the adapter for engagement with the second or the linear flanges. Furthermore a cutting head and an adapter is defined.

Abstract: The present invention concerns a system with a container and a tool holder (20) with two ends (21, 22). One of the ends of the tool holder (20) is adapted for being secured to a machine tool and the other end is adapted for attaching a cutting edge or a cutting edge carrying unit. The tool holder (20) includes an internal cavity (23) surrounded by a cavity wall. The cavity (23) accommodates the container (1). One end (21) of the cavity (23) is adapted for connection to a supply for a cooling medium and the other end (22) is connected to an outlet for cooling medium. The cavity (23) furthermore includes an opening (25) for installation of the container (1). At least one gap for leading the cooling medium is formed between the container (1) and the cavity wall. Furthermore, it is described a container (1) for installation in a machine tool, and use of the container for accommodating one or several sensor for measuring parameters or for receiving a damping system.

Abstract: The present invention concerns a damper for damping vibrations. The damper includes at least one substantially longitudinal damping body (1) with two end surfaces (21, 22) and one substantially longitudinal surface (20) between these. The damping body (1) includes a longitudinal direction (a) and a transversal direction (t) and is places in a substantially longitudinal cavity (15) with a damping fluid, wherein the cavity (15) defines at least one cavity surface (14) and the damping body (1) defines at least one damping surface. The damping fluid includes a proportion of liquid and a proportion of gas and either the cavity surface (14) or the damping body surface or both are broken to promote formation of foam in the damping fluid in operation.

Abstract: The present invention concerns a damping apparatus for the damping of vibrations in tool holders, machine elements and work pieces in machine tools and in other objects that are exposed to unwanted vibrations. The damping apparatus is adapted to be provided in or on the object and includes a substantially cylindrically shaped damping body with a boring going there through and a longitudinal central body that is rigidly connectable to the object that is to be damped. The damping body is connected to the longitudinal central body through elastic elements. The connection is made such that the elastic elements are substantially exposed to shear forces during damping.

Abstract: The invention concerns a cutting head (13) to be secured in an adapter (9) in a machine tool for chip removing machining. The cutting head (13) comprises a flange with a first side creating a coupling surface (4) adapted for being secured to the adapter (9). On the opposite of the flange, it is situated an other side creating at least one surface (1A) with an outwards extending protrusion (8), with securing means adapted for securing a cutting insert (5) with at least one cutting edge. The weight of the cutting head (13) is reduced as compared to the strength of the cutting head (13), and the natural frequency of the cutting head (13) is thereby increased when this is secured to the adapter (9).