Transactions of Materials and Heat Treatment

Title：Influence of process parameters on cutting quality in optical fiber laser cutting

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ClassificationCode：TG485

year,vol(issue):pagenumber：2020,45(11):82-88

Abstract：

The influence law of cutting quality for thermoforming high strength steel sheet with the thickness of 1.4 mm was studied by the optical fiber laser cutting system composed of 3000 W optical fiber laser and CNC machine tool. Then, the orthogonal experiment with three factors and five levers was designed, and the influences of laser power, cutting speed, auxiliary gas pressure and other process parameters on the slit width and the slag height were systematically studied. The experimental results show that the laser power and the cutting speed are the main process parameters that affect the quality of slit. When the laser power is 3000 W, the cutting speed v is 11 m·min-1, the auxiliary gas pressure F is 1.1 MPa and the distance Δ between nozzle and workpiece is 0.8 mm, the minimum slag height obtained is 46.32 μm.

Funds：

新能源汽车科学与关键技术学科创新引智基地（B17034）;教育部创新团队发展计划（IRT_17R83）;湖北省技术创新专项重大项目资助（2019AAA007）

何帆（1993-），男，硕士研究生 E-mail：943622677@qq.com；通讯作者：胡志力（1983-），男，博士，副教授 E-mail：zhilihuhit@163.com

Reference：

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