Indexable and variable-cutting-width milling cutter for blisk high-efficiency machining

Abstract

The invention discloses an indexable and variable-cutting-width milling cutter for blisk high-efficiency machining, which can be especially applied to the slotting process of the flow channel of the titanium alloy blisk, and mainly solves the problems of serious cutter wear, fixed cutting width, low processing efficiency, poor positioning accuracy and great installation difficulty encountered in the process of blisk flow channel slotting at present. The indexable and variable-cutting-width milling cutter mainly comprises a cutter body, a central bushing, a cutter body heat dissipation groove,key grooves, chip removal grooves, blades, positioning grooves, cutter grooves, convex ribs, chip removal grooves in the blades and a gasket, wherein the cutter body and the center bushing are connected to a cutter handle by the key grooves, the chip removal grooves in the blades are design in a circular arc shape, the blades and the gasket are fixed on the cutter body by fastening screws, the gasket is of a variable cutting width structure and is provided with internal threads, and can be directly assembled by the positioning grooves designed for the cutter body, and the gasket of corresponding size is provided according to the size requirements, so as to realize the variable cutting width of the cutter, and each cutter groove has a pre-installation angle, so that the corresponding cutting angle can be formed after the blades are installed. The indexable and variable-cutting-width milling cutter is particularly suitable for slotting the flow channel of the blisk.

Description

technical field [0001] The invention relates to a novel overall blisk flow channel slotting tool, which is especially used in the process of slotting the titanium alloy overall blisk flow channel. Background technique [0002] With the rapid development of the aviation manufacturing industry, higher requirements are put forward for the quality of key components of aero-engines, and metal cutting tools are also playing an increasingly important role. In order to meet the technological requirements, in various fields such as military and aviation, Tools are usually required to process various difficult-to-machine materials. The blisk is the core component designed to meet the high-performance aero-engine. It needs to remove more than 90% of the material from the blank to the processing. The processing process is very difficult, and the overall The blisk blade shape is complex, the blade is short and thin, the radial thickness of the rim is small, and the deformation is large a...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an indexable and variable cutting width milling cutter for efficient machining of integral blisks, which is mainly used in the slotting process of the titanium alloy integral blisk flow channel to improve the low cutting efficiency, fixed cutting width, and positioning during the machining process. Inaccuracy and other problems; by adjusting the gasket of the tool, the processing of grooves with different widths can be realized, and the operability is good, and the gasket is provided with internal threads, and the blade and the gasket are fixed together by fastening screws. The installation accuracy is guaranteed; the blade is designed as a vertical structure. Since the blade is clamped by the cutting force, the clamping force will increase with the increase of the cutting force, so the clamping element can be omitted, and the chip holding space can be increased. The blade only needs one fastening screw to be fixed in the knife groove and the positioning groove. There are few parts, the cross-section is larger in the direction of cutting force, and the compressive strength is high, so it can realize deep-cutting processing. The structure is simple, the operation is convenient, safe and reliable. And fastening screws are designed according to national standards, which is conducive to the standardized production of cutting tools, ensures the stability and processing accuracy in the processing process, reduces production costs, and can effectively improve processing efficiency

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