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| Research for Cutting Force and Torque in Rotary Ultrasonic Drilling of#br# Carbon Fiber Reinforced Polymers |
| YUAN Songmei1,2,SONG Heng1,2, LU Yilin1,2 |
( 1. School of Mechanical Engineering & Automation, Beihang University, Beijing 100191, China;
2. Beijing Engineering Technological Research Center of High-Efficient & Green CNC Machining Process and Equipment,
Beijing 100191, China ) |
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Abstract Aiming at the problems in the processing of carbon fiber reinforced polymers (CFRP), the rotary ultrasonic
drilling has been carried out on CFRP-T700 composites with the abrasive trepanning core tool. From the graphical analysis,
the cutting force has been found decreased with the increase of spindle speed whereas the corresponding torque has
been found increased with the increase of spindle speed. The decrease in cutting force and the corresponding torque values
has been found up to 56.6% and 39.1%, respectively in comparison with conventional machining. The mathematical relation
of the cutting force and the torque has been been developed. The proportionality constant, k has been found between
the cutting force and the torque has been found experimentally. The rotary ultrasonic drilling with trepanning tool is the
essential need to reduce the cutting force and torque for machining of CFRP composites. This research can be applied for
practical machining at the industry level.
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2017, 
