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A milling and slotting processing method for high-temperature alloy integral leaf ring blade parts

A high-temperature alloy and integral leaf technology, applied in the field of mechanical processing, can solve the problems that a single cutter shaft cannot be rough-grooved, the space for the cutter is small, and the shape of the transfer R is complicated, so as to improve the material removal rate and processing efficiency, avoid The sharp increase in cutting force and the effect of improving machining stability

Active Publication Date: 2019-03-15
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Integral leaf ring blade parts are new structural parts used in aero-engines. The high-temperature alloy integral leaf ring blade parts are composed of three parts: inner ring, outer ring and blade. The inner ring and outer ring of the parts are thin-walled structures. It is a typical cavity structure, the shape of the transition R between the inner and outer rings and the blade is complex, and the blade surface is relatively complex and the twist angle is relatively large. Viewing the blades along the axial direction, they block each other. When processing on the CNC center, a single cutter shaft Unable to process rough grooving, multi-axis linkage rough grooving tool loss is serious, the space between the blades is narrow, resulting in a small space for the tool, and a small diameter milling cutter is required, resulting in easy vibration during processing, low processing efficiency, serious tool loss, rough Uneven allowance after grooving, low processing efficiency and high processing cost

Method used

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  • A milling and slotting processing method for high-temperature alloy integral leaf ring blade parts
  • A milling and slotting processing method for high-temperature alloy integral leaf ring blade parts
  • A milling and slotting processing method for high-temperature alloy integral leaf ring blade parts

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Embodiment Construction

[0032] Such as figure 1 As shown, the integral leaf ring blade parts include inner ring 1, outer ring 2 and blade 3, the material grade is GH4169, the maximum outside diameter size: Φ530mm; the minimum inside flow channel diameter size: Φ460mm; the part thickness is 30mm; the maximum value of blade 3 Chord width: 40mm; total number of blades 3: 130; minimum distance between adjacent blades 3: 9mm; thickness of inner ring 1, outer ring 2 is 2~5mm; blade 3 length is 30~33mm; blade 3 is connected to the inner and outer runners R=2.5mm; between adjacent blades 3 are entities 4 that need to be slotted to remove.

[0033] Such as figure 2 As shown, the entity 4 to be removed by slotting can be simplified as an inverted cone-shaped hexahedron with a certain curvature, the upper end length is 35mm, the width is 10mm, the lower end length is 30mm, the width is 10mm, the narrowest position is 9mm, the height is 30mm, and the fillet R is 3mm.

[0034] The processing process includes the foll...

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Abstract

The invention belongs to the field of machining, and particularly relates to a milling grooving machining method for a high-temperature alloy integral blade ring and blade part. The method comprises the machining steps of air inlet end pre-drilling, cavity milling of a blade back at the air inlet end, cavity milling of a blade basin at the air inlet end, milling of an air inlet end flow channel and back chipping, exhaust end pre-drilling, cavity milling of a blade basin at the exhaust end, cavity milling of a blade back at the exhaust end, and milling of an exhaust end flow channel and back chipping. The milling grooving machining method for the high-temperature alloy integral blade ring and blade part, the milling modes of driving a fixed shaft through multiple vectors for layering and sectional connecting are adopted, and a common end milling cutter is applied to realize rough grooving machining of uniform allowance.

Description

Technical field [0001] The invention belongs to the field of mechanical processing, and specifically relates to a method for milling and grooving a high-temperature alloy integral leaf ring blade part. Background technique [0002] Integral leaf ring blade parts are new structural parts used in aeroengines. The high-temperature alloy integral leaf ring blade parts are composed of three parts: inner ring, outer ring and blade. The inner ring and outer ring of the parts are thin-walled structures. It is a typical cavity structure. The shape of the transition R between the inner and outer rings and the blade is complex, and the blade profile is more complex and the torsion angle is relatively large. Observe the blades along the axial direction and block each other. When processing on the CNC center, a single tool axis Unable to rough grooving, multi-axis linkage rough grooving tool wear is serious, and the space between the blades is narrow, resulting in a small tool holding space, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/02
CPCB23P15/02
Inventor 赵辞韩德印杨楠曾庆国徐一鸣
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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