An experimental investigation of laser assisted drilling process

作者：Zhang, G.^*; Jiang, C.; Zhang, S.; Wang, Y.; Chen, X.; Yu, L.

来源：Materials Research Innovations, 2015, 19(sup8): 889-894.

DOI：10.1179/1432891715Z.0000000001889

• Conventional drilling
• Drilling time
• Experimental investigations
• Heating process
• Hole diameter
• Laser assisted drillings
• Production rates
• Workpiece materials

Drilling is one of the processes where lasers have been successfully applied. Laser assisted drilling process offers combined advantages of a conventional drilling process and a laser heating process. An experimental investigation of a laser assisted drilling process was conducted in this study. 41Cr4, C45E4, stainless steel and cast iron were used as workpiece materials and a fibre laser was employed with the beam formed into an ellipse shape. Results show that compared with laser pre-heating, the initial hole diameters are improved more than 122.7% for 41Cr4, 85.9% for C45E4 and 140.7% for stainless steel, and the drilling time is shortened over 18.6% for cast iron, 16.3% for C45E4 and 39.9% for stainless steel in the laser assisted drilling process, which produces less tool wear and a higher production rate.

• 出版日期2015
• 单位西南交通大学