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High-accuracy mortise broaching processing method for turbine disk made of powder high-temperature alloy material

A high-temperature alloy and processing method technology, applied in metal processing equipment, broaching machines, broaching tools, etc., can solve problems such as easy deformation, increased part deformation, and large cutting force

Inactive Publication Date: 2013-03-13
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The turbine rotor part is one of the important core hot-end parts of an aero-engine. The material of the turbine part must have high yield strength, tensile strength and good thermal stability, and be able to adapt to reliable work requirements at high temperatures. With the engine thrust-to-weight ratio With the improvement of powder superalloy materials, more and more powder superalloy materials are used. On the one hand, it brings great difficulties to cutting processing. Whether it is turning, milling, broaching, or drilling, ordinary carbide tools, high-speed steel Broaches can not meet the processing needs
On the other hand, the prominent features of the part structure are complex shape, thin wall, poor rigidity, and easy deformation during processing.
In the process of broaching, the cutting force is greater, which increases the deformation of the parts

Method used

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  • High-accuracy mortise broaching processing method for turbine disk made of powder high-temperature alloy material
  • High-accuracy mortise broaching processing method for turbine disk made of powder high-temperature alloy material
  • High-accuracy mortise broaching processing method for turbine disk made of powder high-temperature alloy material

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] This embodiment provides a high-precision tenon-groove broaching processing method for a powder superalloy material turbine disk, which is characterized in that: the high-precision tenon-groove broaching processing method for a powder superalloy material turbine disk is that the center hole of the part is used The double insurance fixture structure is combined with tensioning and tenon and groove end face axial compression, the broaches are made of imported powder high-speed steel material ASP2060, the broach hardness is HRC66-68, a complete set of 14 broaches are used, arranged in two rows and divided into two broaching is complete. The 1st to 7th are slotting knives, the 8th is rough drawing tooth type, the 9th to 11th are rough drawing tooth bottom groove knives, the 12th rough drawing tooth top arc knife, the 13th fine drawing groove bottom circle Arc, the 14th is a fine toothed knife;

[0020] Process parameters of broaches:

[0021] Broach material: ASP2060 powd...

Embodiment 2

[0027] This embodiment provides a high-precision tenon-groove broaching processing method for a powder superalloy material turbine disk, which is characterized in that: the high-precision tenon-groove broaching processing method for a powder superalloy material turbine disk is that the center hole of the part is used The double insurance fixture structure is combined with tensioning and tenon and groove end face axial compression, the broaches are made of imported powder high-speed steel material ASP2060, the broach hardness is HRC66-68, a complete set of 14 broaches are used, arranged in two rows and divided into two broaching is complete. The 17th is a slotting knife, the 8th is a rough-drawing tooth type, the 9th-11th is a rough-drawing bottom groove knife, the 12th is a rough-drawing tooth top arc knife, and the 13th is a fine-drawing groove bottom arc. The 14th is a fine toothed knife;

[0028] Process parameters of broaches:

[0029] Broach material: ASP2060 powder hig...

Embodiment 3

[0035] This embodiment provides a high-precision tenon-groove broaching processing method for a powder superalloy material turbine disk, which is characterized in that: the high-precision tenon-groove broaching processing method for a powder superalloy material turbine disk is that the center hole of the part is used The double insurance fixture structure is combined with tensioning and tenon and groove end face axial compression, the broaches are made of imported powder high-speed steel material ASP2060, the broach hardness is HRC66-68, a complete set of 14 broaches are used, arranged in two rows and divided into two broaching is complete. The 1st to 7th are slotting knives, the 8th is rough drawing tooth type, the 9th to 11th are rough drawing tooth bottom groove knives, the 12th rough drawing tooth top arc knife, the 13th fine drawing groove bottom circle Arc, the 14th is a fine toothed knife;

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Abstract

The invention discloses a high-accuracy mortise broaching processing method for a turbine disk made of a powder high-temperature alloy material. Broaching tools made of an imported powder high-speed steel material ASP2060 are adopted; the hardness HRC of the broaching tools is 66-68; 14 fourteen broaching tools in a complete set are adopted; first to seventh broaching tools are necking tools; an eighth broaching tool is a roughing tooth type tool; ninth to eleventh broaching tools are roughing tooth bottom cut tools; a twelfth broaching tool is a roughing tooth top circular arc tool; a thirteenth broaching tool is a finish broaching tank bottom circular arc tool; a fourteenth broaching tool is a finish broaching tooth type tool; the broaching tools are made of an ASP2060 powder high-temperature alloy material; the front angles of the broaching tools are 15 degrees; the back angles of the broaching tools are 3 degrees; the rise per teeth of the rough necking tools are 0.045-0.06 millimeters; the rise per tooth of the roughing tooth type tool is 0.02-0.035 millimeters; the rise per tooth of the finish broaching tank bottom circular arc tool is 0.02 millimeters; the rise per tooth of the finish broaching tooth type toolfourteenth broaching tool is 0-0.03 millimeters; gradual cutting and complete molding are adopted in a broaching way; the rough broaching speed is 1 meter per minute; and the finish broaching speed is 1-1.5 meters per minute. The high-accuracy mortise broaching processing method has the advantages that: broaching deformation of parts is controlled and reduced effectively, the processing requirements of a high-accuracy powder metallurgy disk are met, and the requirement of a high-accuracy mortise on size accuracy on a high-accuracy mortise is met effectively.

Description

technical field [0001] The invention relates to the technical field of mechanical processing, in particular to a high-precision tenon and groove broaching processing method for a powder superalloy material turbine disk. Background technique [0002] The turbine rotor part is one of the important core hot-end parts of the aero-engine. The material of the turbine part must have high yield strength, tensile strength and good thermal stability, which can meet the requirements of reliable work at high temperature. With the engine thrust-to-weight ratio With the improvement of powder superalloy materials, more and more powder superalloy materials are used. On the one hand, it brings great difficulties to cutting processing. Whether it is turning, milling, broaching, or drilling, ordinary carbide tools, high-speed steel Broaches can not meet the processing needs. On the other hand, the prominent features of the part structure are complex shape, thin wall, poor rigidity, and easy d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23D37/22B23D43/00
Inventor 郭艳华李成武张印敖强袁秋月
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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