Careful monitoring of conditions during micro-drilling is important for insuring production of consistent high-quality holes. In this study, acoustic emission, ultrasonic sound, and electric spindle load were used to monitor micro-drilling performed using a micro-scale machine tool (mMT). Experiments were conducted where 0.508 mm diameter holes were drilled in polyetheretherketone (PEEK) polymer and 316 stainless steel. It was found that spindle load significantly increased when tool gumming occurred during drilling of PEEK. Increased spindle load when cutting 316 stainless steel was found to correspond to increased incidences of tool breakage, and a large reduction in spindle load was present during additional drilling operations following a breakage event. It was found that elevated acoustic emission levels were always present during drilling and that a lack of sufficient acoustic emission generation during retraction of a tool indicated tool breakage. The ultrasonic sound spectra were found to change in a manner that is a function of depth of cut and hence a function of depth of cut dependent tool dynamics.
Skip Nav Destination
ASME 2012 International Manufacturing Science and Engineering Conference collocated with the 40th North American Manufacturing Research Conference and in participation with the International Conference on Tribology Materials and Processing
June 4–8, 2012
Notre Dame, Indiana, USA
Conference Sponsors:
- Manufacturing Engineering Division
ISBN:
978-0-7918-5499-0
PROCEEDINGS PAPER
Process Monitoring During Micro-Drilling via Acoustic Emission, Ultrasonic Sound, and Spindle Load Sensors
Keith A. Bourne,
Keith A. Bourne
University of Illinois, Urbana, IL
Search for other works by this author on:
Shiv G. Kapoor
Shiv G. Kapoor
University of Illinois, Urbana, IL
Search for other works by this author on:
Keith A. Bourne
University of Illinois, Urbana, IL
Shiv G. Kapoor
University of Illinois, Urbana, IL
Paper No:
MSEC2012-7341, pp. 781-790; 10 pages
Published Online:
July 19, 2013
Citation
Bourne, KA, & Kapoor, SG. "Process Monitoring During Micro-Drilling via Acoustic Emission, Ultrasonic Sound, and Spindle Load Sensors." Proceedings of the ASME 2012 International Manufacturing Science and Engineering Conference collocated with the 40th North American Manufacturing Research Conference and in participation with the International Conference on Tribology Materials and Processing. ASME 2012 International Manufacturing Science and Engineering Conference. Notre Dame, Indiana, USA. June 4–8, 2012. pp. 781-790. ASME. https://doi.org/10.1115/MSEC2012-7341
Download citation file:
21
Views
Related Proceedings Papers
Related Articles
Stiffness Computation and Identification of Parallel Kinematic Machine Tools
J. Manuf. Sci. Eng (August,2009)
Machining Process Monitoring and Control: The State-of-the-Art
J. Manuf. Sci. Eng (May,2004)
Related Chapters
Study on Screw Drill Wear When Drilling Low Carbon Stainless Steel and Accompanying Phenomena in the Cutting Zone
International Conference on Instrumentation, Measurement, Circuits and Systems (ICIMCS 2011)
Introduction and Definitions
Handbook on Stiffness & Damping in Mechanical Design
Process Monitoring Using Online Sensor Signals
Ultrasonic Welding of Lithium-Ion Batteries