Broaching machining method for mortise of powder metallurgy superalloy turbine disc

A high-temperature alloy and processing method technology, which is applied to metal processing equipment, broaching tools, broaching machines, etc., can solve problems such as insufficient processing accuracy, tool wear, and high cost, so as to reduce cutting, prolong service life, and improve wear resistance Effect

Active Publication Date: 2014-04-09
CHINA HANGFA SOUTH IND CO LTD
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  • Abstract
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Problems solved by technology

[0010] The purpose of the present invention is to provide a method for broaching the tenon and groove of a powder superalloy turbine disk, so as to solve the problem of cutting a knife, rapid tool wear, insufficient processing accuracy and high cost in the broaching process of the existing powder superalloy turbine disk tenon and groove technical issues

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  • Broaching machining method for mortise of powder metallurgy superalloy turbine disc

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Embodiment Construction

[0027] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.

[0028] figure 1 It is a structural block diagram of the method for broaching the mortise and groove of a powder superalloy turbine disk in a preferred embodiment of the present invention, as figure 1 As shown, the method for broaching the tenon and groove of the powder superalloy turbine disk in this embodiment optimizes the broach according to the material characteristics of the powder superalloy turbine disk, and optimizes the material of the broach to improve the toughness and wear resistance of the broach Performance, optimize the tooth lift of the broach to improve the wear resistance of the broach, the stability of the broaching process and the processing accuracy; optimize the broaching speed to improve the processing quality and reduce the l...

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Abstract

The invention discloses a broaching machining method for the mortise of a powder metallurgy superalloy turbine disc, wherein a broaching tool is optimized according to the material performances of the powder metallurgy superalloy turbine disc, the toughness and abrasion resistance of the broaching tool are improved by optimizing the material of the broaching tool, and the abrasion resistance, broaching process stability and machining accuracy of the broaching tool are improved by optimizing the rise per tooth of the broaching tool; the machining quality is improved and the loss of the broaching tool is reduced by optimizing a broaching speed; the broaching performance is improved by optimizing a process route; the powder metallurgy superalloy turbine disc is delivered in a solid solution state; broaching machining for the mortise is performed on the powder metallurgy superalloy turbine disc in the solid solution state; the powder metallurgy superalloy turbine disc finished product is obtained through heat treatment. According to the broaching machining method, the broaching performance is improved and the use requirements of the turbine disc are ensured.

Description

technical field [0001] The invention relates to the technical field of engine parts processing, in particular to a method for broaching a tenon and groove of a powder superalloy turbine disk. Background technique [0002] The tenon and groove broaching technology of the turbine disk in the aero-engine is one of the key technologies in aero-engine processing. For small and medium-sized aero-engines, the tenon and groove precision is particularly high and the tooth shape is complex. On the basis of the high surface precision of engine parts, if the material is particularly difficult to process, the superposition of double difficulties will lead to a bottleneck, which needs to be broken through urgently. [0003] At present, for turbine disks of various materials, the broaching of the tongue and groove is usually carried out after the final heat treatment (aging treatment for superalloys), but this processing method can only be used for stainless steel and deformed superalloy m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/02B23D43/00
CPCB23D37/22B23D43/02B23D2043/025
Inventor 刘海根黄学怀刘青海胡祥松
Owner CHINA HANGFA SOUTH IND CO LTD
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