Material removal and belt wear in laser assisted grinding TC17

ABSTRACT

Titanium alloys have high hardness and low plasticity, there will be large cutting force and serious tool wear during machining. Laser-assisted grinding can significantly improve its machinability, but the wear mechanism of abrasive tools and its influence on material removal during machining have not been well revealed. In this paper, the variation of cutting force under different laser power, laser scanning speed and feed speed were studied. In addition, the influences of different laser powers on material removal was also investigated. At the same time, the abrasive belt wear in laser-assisted grinding and conventional grinding was compared. The results indicated that increasing the laser power can reduce the cutting force. When the laser power increased from 7.2W to 9.6W, the cutting force showed the maximum change trend, which decreased by 46%. Enhanced material removal and increased plastic flow with increasing laser power. Increasing the laser scanning speed and workpiece feeding rate will also increase the cutting force. In addition, laser-assisted grinding can reduce belt wear compared with conventional grinding under the same grinding parameters. Therefore, laser-assisted grinding has an important potential role in the field of grinding.

KEYWORDS:

• TC17
• laser
• assisted
• grinding
• force
• material
• removal
• belt
• wear

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

This work was supported by the National Natural Science Foundation of China [52175377]; the National Science and Technology Major Project [Grant No. 2017-Ⅶ-0002-0095]; and the Graduate scientific research and innovation foundation of Chongqing [Grant No. CYB20009].