A modified carbon fiber composite material ultrasonic assisted grinding device and grinding method

Abstract

The invention discloses a modified carbon fiber composite material ultrasonic assisted grinding device and grinding method, comprising a handle body, a non-contact transmission unit, an ultrasonic handle, a tool, an ultrasonic power supply and an ultrasonic vibration workbench, the handle body and The main shaft of the machine tool is connected, and the non-contact transmission unit includes the primary side and the secondary side. Fixed with the handle body, the ultrasonic handle is fixed at the bottom of the handle body, the tool is installed at the bottom of the ultrasonic handle, the ultrasonic power supply is connected to the original side, the ultrasonic vibration table is set under the tool, and the ultrasonic vibration table is equipped with a circular rotation The workpiece is set on a circular rotary table. The invention provides a modified carbon fiber composite material ultrasonic assisted grinding device and grinding method, which can effectively control the fiber cutting direction angle and internal cooling function in the processing area.

Description

technical field [0001] The invention relates to the technical field of mechanical processing, in particular to an ultrasonic-assisted grinding device and grinding method for modified carbon fiber composite materials. Background technique [0002] Ceramic-based carbon fiber composite materials such as C / C, C / SiC, etc. have excellent properties such as light weight, ablation resistance, and stable thermochemical performance. They are widely used in aerospace, transportation, energy and other fields as thermal protection components. In order to further improve the ablation resistance of such materials, metals such as Cu and Zr were introduced into the above materials to form a class of modified carbon fiber composite materials. This type of material is a typical difficult-to-machine material. The carbon fiber and the matrix are hard and brittle materials with high hardness and low fracture toughness. The cutting force is large during processing, and the temperature in the cutti...

AI Technical Summary

Problems solved by technology

At present, one-dimensional ultrasonic assisted grinding technology has been widely used in the processing of composite materials. A large number of studies have shown that the fiber cutting direction angle (the angle between the abrasive grain cutting direction and the fiber axis) is an important factor affecting the processing efficiency and quality. , but the existing ultrasonic machining technology has limited ability to control the fiber cutting direction angle

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