A method and apparatus. The apparatus comprises a first portion of a tool and a second portion of the tool. The first portion of the tool has a first surface. The first surface has a shape that is complementary to a first portion of a part. The second portion has at least one of a second surface configured to be recessed from a second portion of the part or a hollow portion.

A clamp bench for key duplicating machines, comprising a fixed component, a first rotary component, a second rotary component and a slide base; the fixed component comprises a first fixed component and a second fixed component, the first fixed component is used to hold the master key in place and the second fixed component is used to hold the key blank in place; the first rotary component, the first fixed component and the second fixed component are rigidly connected to the first plane of the first rotary component, the second rotary component forms a rotary connection with the second plane of the first rotary component. Using the clamp bench, the user can press and rotate the handle with one hand to perform composite rotary feeding of the duplicated key along two different axial lines around the rotary axis and the slide base, completing the processing of the key with bevel tooth.

The machining method uses a tool to machine a workpiece set in a jig, the workpiece has a plate-like web part arc-shaped in plan view and a flange part bent and arranged vertically from an edge along the arc shape, the tool has an end cutting edge and a peripheral cutting edge, and the jig has a surface where the web part is placed and a contacting surface where the flange part comes into surface contact. The machining method includes: pressing the flange part against the contacting surface; cutting the flange part by the peripheral cutting edge by feeding the tool in an arc direction of the arc shape; and cutting the web part by the end cutting edge by feeding the tool in the arc direction.

A supporting device and method for a large thin-walled part is disclosed. The supporting device comprises a processing device and a supporting device. A workpiece is positioned between the processing device and the supporting device and is clamped at a periphery in a flexible clamping mode. A cutter in the processing device is connected with an iron core. A coil is wound on the iron core. When the coil is energized, a magnetic field is generated around the coil. A blade part of the cutter is in contact with a processing side of the workpiece. The supporting method combines the magnetorheological fluid technology with the jet supporting technology, and uses a jet impact force to offset part of a milling force. The current magnitude and winding mode of the coil are changed to control magnetic field intensity. The magnetorheological fluid is cured instantly to support the workpiece.

A clamp for key duplicating machines includes a support, a pin emerging therefrom with a threaded upper end engagable by a knob, the support base having a pair of upper parallel projections on opposite sides of the pin, a lower jaw of square plan, positioned on the support and having a central hole rotatably engaged by the pin, with four grooves in its lower surface parallel to the jaw sides and engagable in pairs with the projections, an upper jaw of square plan, having a central hole rotatably engaged by the pin and cooperating with the lower jaw to clamp a key, wherein the pair of projections are shaped as parallel cylindrical pegs emerging from the upper surface of the support. When the clamp is active, its lower jaw rests only by two grooves on the two projections, otherwise the lower surface is spaced from the support upper surface.

A method of milling a piece of raw steel stock comprising: arranging a minimum of four solid pole extensions on top surface segments of a magnetic chuck such that the solid pole extensions are relatively evenly distributed under a piece of raw steel stock and within 2 inches of a perimeter of the piece of raw steel stock; arranging multiple mobile pole extensions beneath the piece of raw steel stock and on every other top surface segment of the magnetic chuck under the piece of raw steel stock that is not occupied by the solid pole extensions but beneath the piece of raw steel stock, each of the multiple mobile pole extensions having a biased top portion that contacts the piece of raw steel stock; and milling the piece of raw steel stock with a face mill that generates steel chip as swarf.

An aeronautical aluminum alloy minimum-quantity-lubrication milling machining device includes a machine tool worktable and spindle connected with a machine tool power system. The spindle is connected with a tool holder that is fixed with a cutting tool. The machine tool worktable is provided with a machine tool fixture, the tool holder is connected with a minimum-quantity-lubrication mechanism, the machine tool fixture includes a fixture body that is fixedly provided with a limit block for contact with two adjacent side surfaces of a workpiece, the fixture body is provided with a plurality of clamping elements capable of pressing the workpiece against an upper surface of the fixture body, and a top of the clamping element is provided with a detection member for detecting a relative position between the clamping element and the spindle. The device can avoid interference and contact between a nozzle and the clamping element.

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.

A processing device includes: a first processing position (A1) and a second processing position (A2) at which rough processing is performed on a workpiece (W); a third processing position (B1) at which final finishing processing is performed on the workpiece (W) that was processed at the second processing position (A2); flexible vises (7) provided to the first processing position (A1) and the second processing position (A2), the flexible vises (7) securing the workpiece (W) by clamping the same; and a quick clamping device (20) provided to the third processing position (B1), the quick clamping device (20) securing the workpiece (W) by means of a pin. The processing device also includes a control unit that controls a rough processing tool for performing rough processing and a final finishing processing tool for performing final finishing processing.