Vane surface ultrasonic wave machining process

Abstract

The invention provides a vane surface ultrasonic wave machining process which comprises the following steps: (1) installing an ultrasonic wave cutter on a main shaft of a numerical control milling machine; (2) enabling surface roughness of a work-piece to reach a Ra value no larger than 6.3um before the surface of the work-piece is machined in an ultrasonic wave mode; (3) clamping vanes on a rotating shaft of a work table of the numerical control milling machine; and (4) starting the numerical control milling machine, operating the work table of the numerical control milling machine, enabling the vanes to do X-direction and Y-direction motion along with the work table and rotate along with the rotating shaft on the work table, enabling ultrasonic wave cutter to contact the surfaces of the vanes by means of Z-direction motion of the main shaft, applying pressure on the vanes in the machining process all the time, and enabling the ultrasonic wave cutter to do the Z-direction motion along with the main shaft of the numerical control milling machine. The vane surface ultrasonic wave machining process specifically formulates clamping ways and process parameters when the vanes are machined on the numerical control milling machine in an ultrasonic wave mode, improves machining efficiency of the vanes, does not cause environment pollution, is low in expense, ensures that ultrasonic wave machining is carried out under an optimum state, and improves surface quality of the vanes.

Description

technical field [0001] The invention relates to a process method for ultrasonically processing the surface of a blade on a numerically controlled milling machine (with the linkage function of more than four axes), and belongs to the technical field of ultrasonic metal surface processing. Background technique [0002] Blades are used in many mechanical equipment, such as various pumps, fans, steam turbines, water turbines, aero-engines and propellers, etc. The blade-shaped part is the working part of the blade. The airfoil shape of the blade is neither a plane nor a cylindrical surface, but an irregular curved surface. The processing quality of the blade surface (accuracy, hardness, surface roughness and texture requirements, etc.) has an important impact on important indicators such as the operating efficiency and service life of the equipment. [0003] The blade is finished by a CNC machine tool (multi-axis CNC milling machine). The spindle of the CNC machine tool and mult...

AI Technical Summary

Problems solved by technology

[0006] The processing and process parameters mentioned in the above ultrasonic processing method are all proposed for specific workpieces, and cannot be applied to ultrasonic processing of blades on CNC milling machines