Method for manufacturing integrated rotor, cutting program for blade of integrated rotor, and integrated rotor
A manufacturing method and cutting processing technology, applied in the direction of manufacturing tools, supporting components of blades, program control, etc., can solve the problems of prolonged feeding and retracting action time of turning tools, inability to continue processing, time-consuming problems, etc.
Pending Publication Date: 2022-03-29
YAMAZAKI MAZAK KK
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Problems solved by technology
In general, if the movement speed in the radial direction is limited, it takes time to move the axis even if the rotational movement can be continued, resulting in prolonged entry and retraction times for turning tools
In addition, when the rotation speed is fast, even if the speed in the radial direction is limited, the allowable speed will be exceeded in each axis, and the synchronization of each axis cannot be obtained, and the machining cannot be continued.
Method used
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[0027] Below, use figure 1 The manufacturing method of the integrated rotor of the present invention is illustrated in detail through FIG. 7 .
[0028] Such as figure 1 As shown, the integrated rotor 10 is a rotor in which a turntable 1 which is an annular plate body and a plurality of blades 2 arranged in a row on the outer periphery of the turntable 1 are integrated. The blade 2 is a three-dimensional plate-shaped body having a positive pressure surface 21 and a negative pressure surface 22 on the main surfaces.
[0029] Such as figure 2 As shown, the blades 2 of the integrated rotor 10 are each pre-roughed to have a blade shape. Among them, in the finishing machining of the blade 2, machining is generally performed by a rotary tool such as an end mill, but in this embodiment, the cutting process is performed while moving the cutting edge of the turning tool along the surface of the blade. That is, if figure 2 As shown by the arrow, from the point on the leading edge ...
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The invention provides a manufacturing method of an integrated rotor, a cutting machining program of a blade of the integrated rotor, and the integrated rotor. A method for manufacturing an integrated rotor according to the present invention processes a blade with high precision by cutting. The method for manufacturing an integrated rotor according to the present invention is a method for manufacturing an integrated rotor in which a three-dimensional plate-shaped blade having a positive pressure surface and a negative pressure surface on the main surfaces thereof, respectively, is integrated with a turntable. The ridge lines of the front edge and the rear edge of the blade are each divided by a predetermined number to set virtual lattice points, and a closed curve is set which surrounds the virtual lattice points of the front edge and the rear edge of the same number from the turntable side via a positive pressure surface and a negative pressure surface. A machining command interpolated so as to continuously move the tip of a turning tool in a closed curve spiral shape is created, and cutting is performed by moving a cutting point corresponding to the position of the tip in accordance with the machining command so as to surround the periphery of the blade.
Description
technical field [0001] The invention relates to a manufacturing method of an integrated rotor in which a turntable and a blade are integrated, a cutting procedure of the blade of the integrated rotor, and the integrated rotor. Background technique [0002] For fans and compressor rotors of gas turbine engines for aircraft, integrated rotors (IBR: Integrally Bladed Rotor) using a turntable and blades integrated, commonly known as blisks (BLISK: bladed in disk) have been proposed. With the integrated rotor, a substantial reduction in the weight of the engine and an increase in fuel efficiency can be achieved. According to the above-mentioned manufacturing method, in addition to the method of integrating the blade manufactured in another process with the disk body by a joining method such as friction welding, a method of cutting the shape of the blade from a disk body blank is known. [0003] For example, Patent Document 1 discloses a method of point contact milling using a to...
Claims
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IPC IPC(8): F01D5/34B23Q15/00F01D5/12G05B19/19
CPCF01D5/34F01D5/12G05B2219/45147G05B19/4099B23B5/36B23B1/00B23B2215/81F01D5/02F05D2230/20F05D2240/20
Inventor 原田幸英藤田哲司
Owner YAMAZAKI MAZAK KK