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

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, ...

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

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