Double-row grooving plunge milling method of integral impeller

Abstract

The invention discloses a double-row grooving plunge milling method of an integral impeller. The double-row grooving plunge milling method is characterized by comprising the steps that a double-row plunge milling tool track is planned along blades on the two sides of an impeller runner; the row tool sequence of the tool track is in the inlet and outlet direction of the runner; and the tool diameter is determined according to the bottom width of the cross section of the runner, the runner is segmented, and the bottom width of the cross section of each segment of the runner is larger than one time of the tool diameter and smaller than two times of the tool diameter. According to the method, compared with an existing large feed layer cutting method, the rough machining efficiency of the integral impeller can be improved by 50% or above, plunge milling top tools can be conveniently eliminated, and redundant tool tracks are effectively reduced; and according to the method, the implementation process is simple, CAM software integration is facilitated, and good application prospects are achieved.

Description

technical field [0001] The invention relates to the field of mechanical processing and tools, and relates to the plunge-milling processing of an integral impeller, in particular to a double-row slotting-milling processing method for an integral impeller. Background technique [0002] The integral impeller is the core component of turbomachinery such as centrifugal compressors and turbine engines, and has a wide range of application backgrounds. With the development of science and technology, the market competition of turbo machinery is becoming more and more fierce. Improving the processing efficiency of impellers and reducing production costs are the goals pursued by major turbo machinery companies. [0003] Cutting is the main method of manufacturing the overall impeller. Due to the geometric characteristics of the impeller parts, more than 70% of the workpiece material needs to be removed, most of which must be removed in the rough machining stage, so it is very important...

AI Technical Summary

Problems solved by technology

However, since the plunge-milling process is still in development, most of the plunge-milling technologies that have been reported only introduce how to realize plunge-milling, and fail to discuss in depth the specific arrangement method of the plunge-milling process on the basis of improving processing efficiency to eliminate redundant processes. residual tool path

Since the high-feed layer cutting processing technology has developed very maturely, and its processing efficiency has reached a certain level, it is difficult to obtain the expected processing efficiency improvement if the plunging and milling process is unreasonable and there are too many redundant tool paths

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