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Ring groove machining method of high-temperature alloy casing

A technology of superalloy and processing method, applied in the field of superalloy casing, can solve the problems of large wear of processing tools and long processing time, and achieve the effects of improving tool life, improving processing efficiency and reducing processing vibration

Active Publication Date: 2022-03-04
CHINA HANGFA SOUTH IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The invention provides a ring groove processing method of a high-temperature alloy casing to solve the technical problems of large tool wear and long processing time in the existing high-temperature alloy casing

Method used

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  • Ring groove machining method of high-temperature alloy casing
  • Ring groove machining method of high-temperature alloy casing
  • Ring groove machining method of high-temperature alloy casing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Install the special fixture on the five-axis CNC machine tool, set the positioning center of the aligning fixture as the G54 XY zero point, set the angular direction of the aligning fixture as the positive direction of the X axis, install the superalloy casing on the fixture positioning circle, and fix it tightly. In the center of G54, the outer circle runout of the parts must be within 0.01mm, and the upper surface of the high-temperature alloy casing should be set as the Z zero point of G54;

[0053] For rough machining, the processing area of ​​the ring groove is determined on the high-temperature alloy casing according to the design requirements. The groove width of the processed ring groove is 6mm, the depth is 16mm, and the ring angle is 170°. A Φ5.5 drill bit is installed on the CNC machine tool. The Φ5.5 drill bit drills the processing area vertically, and drills a row of drilling holes along the circumferential direction of the ring groove on the 170° ring groov...

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Abstract

The invention discloses an annular groove machining method for a high-temperature alloy casing, the annular groove is of a fan-shaped structure, and the annular groove machining method comprises the following steps: rough machining: determining a machining area on the high-temperature alloy casing according to design requirements, and vertically drilling the machining area by drilling to remove most machining allowance; performing first semi-finishing, namely milling the drilled area by adopting an end mill until the machining allowance of 2mm is reserved at the groove bottom of the annular groove and 0.2 mm is reserved at the single edge of the groove wall; second-time semi-finishing is conducted, specifically, the ball-end milling cutter extends into the annular groove to conduct milling till the groove bottom of the annular groove is reached; and finish machining is conducted, specifically, the ring groove is subjected to finish machining through a ball-end milling cutter, and the ring groove is obtained. According to the ring groove machining method of the high-temperature alloy cartridge receiver, different parts of the ring groove are machined in a targeted mode by adopting different cutters according to different machining modes, so that the new method for machining the ring groove is achieved, the machining efficiency of the ring groove is improved, and the obtained ring groove meets the requirements for the size and precision.

Description

technical field [0001] The invention relates to the field of high-temperature alloy casings, in particular to a method for processing ring grooves of high-temperature alloy casings. Background technique [0002] The material of the turbine bearing seat is nickel-based cast superalloy K4169, which has the advantages of high temperature strength, good heat resistance and strong corrosion resistance. However, due to its poor heat capacity and many hard spots, the cutting performance is extremely poor. The shape and structure of the high-temperature alloy casing is complex, and there are three deep grooves distributed around it. Among them, there are two ring grooves around the outer circle of the high-temperature alloy casing. The groove width of the two ring grooves is 6 and the groove depth is 16. One of them The enveloping circumference of the groove is 170 degrees, and the other groove envelops the circumference of 24 degrees. The third groove is a straight groove paralle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P13/02
CPCB23P13/02
Inventor 刘伟淋郑兴浩刘锦宇熊英
Owner CHINA HANGFA SOUTH IND CO LTD
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