期刊名称：International Journal of Advances in Engineering and Management
电子版ISSN：2395-5252
出版年度：2021
卷号：3
期号：6
页码：256-261
DOI：10.35629/5252-030610211
语种：English
出版社：IJAEM JOURNAL
摘要：Stainless steel is considered as a difficult-to-cut material, especially for deep drilling. The deep drilling, where the aspect ratio of the hole depth and diameter is larger than 5, usually required special tools and techniques, such as peck drilling or high pressure cooling to be completed. This paper presents experimental study on a new technique of applying ultrasonic assisted drilling (UAD) in deephole drilling with aspect ratio of 8 for stainless steel using typical twist drill bits. Under low cutting speed in the range from 300 to 550 rpm and a low feed rate of 0.05 mm/rec, both CD and UAD were able to continuously complete the deep holes. The effects major parameters, including cutting speed, feed rate and drilling methods are evaluated using Taguchi design of experiment and ANOVA analysis. The results revealed that, the spindle speed is the most factors has significant effect on thrust force, drilling torque and work done. Under the same cutting parameters of cutting speed and feed rate, ultrasonic assisted drilling process constitutes considerable smaller thrust force, drilling torque and work done compared to those of conventional drilling.
