A milling device for machining a slot into an inner surface of a casing for a gas turbine engine. The milling device includes a frame assembly including multiple structural guides configured to engage structural features on the inner surface of the casing to maintain an axial position of the milling device relative to a longitudinal axis of the casing. The milling device also includes a milling cutter coupled to the frame assembly. The milling device is configured to be displaced in a circumferential direction relative to the longitudinal axis to machine the slot, via the milling cutter, along the inner surface of the casing in the circumferential direction.

An apparatus for cutting annular corrugations in an interior surface of a cylindrical tube having a cutter head comprising a plurality of cutting teeth; a drive shaft coupled to the cutter head for spinning the cutter head; a mandrel coupled to the cutter head, wherein the mandrel defines a longitudinal axis, wherein an axis of rotation of the cutter head is parallel to, but in a position not coaxial with the axis of rotation of the cutter head; an outer eccentric coupled to mandrel, wherein the outer eccentric rotates the mandrel, wherein the axis of rotation orbits around the longitudinal axis.

An apparatus for guiding a rotary tool along a work piece corner edge formed by the intersection of two orthogonal planar surfaces, has a corner guide formed by two orthogonal planar components and defining a longitudinal axis from back to front. An adjustable tool holder assembly is affixed to the corner guide, includes a tool holder, and is configured to independently adjust a tool holder longitudinal position along the corner guide, a radial position of the tool holder relative to the corner guide, and an angular orientation of the tool holder rotating in a transverse plane orthogonal to the longitudinal axis.

A method and apparatus for the refurbishment and repowering of wind turbines through the extension of existing installed blades so that they can catch more wind energy and therefore enable an increase in the overall average power output of the wind turbine.

A portable manual vertical milling key duplicating machine comprising a body, a main axis component, a guide component, a clamping component, a feeding component, a power storage unit, a display unit and an electric control unit. This solution provides a pre-positioned precise guide mechanism and an adjustable handrail and is capable of improving the precision of key processing in multiple aspects and increasing stability during key processing. It has a compact structure with an upper/lower separate two-way sliding table configuration, thereby substantially reducing the machine size, and the body is divided into three areas, thereby ensuring good protection.

Device for machining an end of an elementary panel for its subsequent friction stir welding, the elementary panel comprising a metal body defining two opposite faces, the machining device comprising a chassis, at least two guiding members configured to guide a first face of the elementary panel, at least one machining tool mounted on the chassis, the machining tool being positioned between the two guiding members and at least one pressure member mounted on the chassis and configured to exert a pressure on a second face of the elementary panel so as to press the elementary panel against the guiding members along the horizontal reference direction.

A milling device for machining a slot into an inner surface of a casing for a gas turbine engine. The milling device includes a frame assembly including multiple structural guides configured to engage structural features on the inner surface of the casing to maintain an axial position of the milling device relative to a longitudinal axis of the casing. The milling device also includes a milling cutter coupled to the frame assembly. The milling device is configured to be displaced in a circumferential direction relative to the longitudinal axis to machine the slot, via the milling cutter, along the inner surface of the casing in the circumferential direction.

A device for recontouring a gas turbine blade includes: a holding device having at least one cutting tool; and a guide configured to guide the cutting tool along a leading edge of the gas turbine blade. The cutting tool is configured to remove material from the gas turbine blade using a rotational movement about an axis of rotation. The axis of rotation forms an angle together with a chord of the gas turbine blade in a profile section plane, which extends perpendicularly to a radial extent of the gas turbine blade, and the angle is less than 45°.

A milling machine, in particular a hand-held milling machine, for milling bevels and fillets, having a housing in which a drive device and a spindle are mounted, wherein the spindle is configured to receive at least one cutting device and is connected to the drive device via at least one transmission. Additionally, a rebound damper for protecting the transmission is provided on the spindle.

A kit for making an aperture in an object of interest comprises: a hand-held tool configured for securing a milling cutter therewithin and a guiding member conformally shaped to the aperture. The guiding member is securable to a portion to be removed of the object of interest. the guiding member has a rim. The hand-held tool is provided with a bulge guidable by the rim such that such the milling cutter, when being manually movable along the rim, cuts the aperture in the object of interest.