Automatically tuned boring bar system |
| |
Authors: | Yusuf Altintas Derry Lappin David van Zyl Dan Östling |
| |
Affiliation: | 1. Manufacturing Automation Laboratory, The University of British Columbia, Vancouver, BC V6T 1Z5 Canada;2. Sandvik Coromant, Trondheim, Norway |
| |
Abstract: | This paper introduces a boring bar system which includes an automatically tuned internal vibration absorber, called a tuned mass damper (TMD). The TMD head can be attached to boring bars with a wide range of lengths. An electromagnetic impulse force actuator is developed to measure the frequency response function (FRF) of the boring bar with an integrated power screw. A portable servo motor is attached to the power screw for adaptive tuning of the vibration damper's stiffness. The measurement and tuning cycle is automated until the negative real part of the FRF is optimized to maximize the chatter-free depth of cut. The system is experimentally validated on boring bars with a wide range of length to diameter ratios. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |
|