Thomas Dow

Duncan Distinguished University Prof in ME & Director, PEC

Director, Precision Engineering Consortium
  • 919-515-3976
  • Research Building I 104

Precision Engineering Consortium

 

Dr. Dow is interested in precision machining systems, real-time control, and metrology.

At the graduate level, Dr. Dow teaches Metrology for Precision Manufacturing (MAE 545). The emphasis for this class is on procedures and techniques for measuring planes, distance and angles. Students learn about the instruments and techniques for accurate and repeatable measurement and the theoretical and practical foundations for designing such systems. Video laboratory sessions show the students how to setup and perform the measurements and the students calculate the appropriate results based on the data provided.

At the undergraduate level, Dr. Dow teaches Analysis for Mechanical Engineering Design (MAE 415) and Mechanical Engineering Design (MAE 416). He brings to both of these classes a wealth of experiences in mechanical design, analysis and fabrication. In recent years the students in his classes designed a top fuel dragster clutch and analyzed the drive system for a cable cams used at football games.

When not in the lab, Dr. Dow spends time with his wife and family (2 children and 7 grandchildren) and also enjoys hiking, running, biking, and kit car building.

 

 

Education

Ph.D. 1972

Mechanical Engineering

Northwestern University

M.S. 1968

Engineering Design

Case Institute of Technology

B.S. 1966

Mechanical Engineering

Virginia Polytechnic Institute

Research Description

Dr. Dow's long-term goal is to improve how we make and measure devices that require tolerances of 1 part in 105 of the feature size to operate correctly. This means for a telescope measuring 1.5 meters (like the Hubbel Telescope), the shape tolerance is 15 micrometers.

Publications

Design and validation of the mounting structure for BETTII balloon-based telescope with thin-walled optics
Furst, S. and Dow, T. and Garrard, K. and Sohn, A. and Fixsen, D. and Rinehart, S. and Mentzell, E. and Veach, T. and Rizzo, M. and Dhabal, A. (2016), Journal of Astronomical Telescopes Instruments and Systems, 2(2), .
Design of elliptically-vibrating ultrasonic actuator for nanocoining
Dow, T. A. and Nowak, J. and Kessing, J. R. (2016), Precision Engineering, 45(), 301-310.
Optics of balloon experimental twin telescope for infrared interferometry (BETTII): delay lines and alignment
Dhabal, A. and Rinehart, S. A. and Rizzo, M. J. and Mundy, L. and Fixsen, D. and Sampler, H. and Mentzell, E. and Veach, T. and Silverberg, R. F. and Furst, S. and Dow, T. and Ade, P. and Tucker, C. (2016), Proceedings of SPIE-the International Society for Optical Engineering, 9907(), .
Nanostructure fabrication on germanium and silicon by nanocoining imprint technique
Zdanowicz, E. and Dow, T. A. and Scattergood, R. O. and Youssef, K. (2013), Precision Engineering, 37(4), 871-879.
Thermo-chemical wear model and worn tool shapes for single-crystal diamond tools cutting steel
Lane, B. M. and Dow, T. A. and Scattergood, R. (2013), Wear, 300(1-2), 216-224.
Rapid fabrication of nanostructured surfaces using nanocoining
Zdanowicz, E. and Dow, T. A. and Scattergood, R. O. (2012), Nanotechnology, 23(41), .
Design, modeling, fabrication, and evaluation of the air amplifier for improved detection of biomolecules by electrospray ionization mass spectrometry
Robichaud, G. and Dixon, R. B. and Potturi, A. S. and Cassidy, D. and Edwards, J. R. and Sohn, A. and Dow, T. A. and Muddiman, D. C. (2011), International Journal of Mass Spectrometry, 300(2-3), 99-107.
Automated part centering with impulse actuation
Furst, S. J. and Dow, T. A. and Garrard, K. and Sohn, A. (2010), Journal of Manufacturing Science and Engineering, 132(1), .
Diamond tool wear measurement by electron-beam-induced deposition
Shi, M. and Lane, B. and Mooney, C. B. and Dow, T. A. and Scattergood, R. O. (2010), Precision Engineering, 34(4), 718-721.
Diamond tool wear when machining Al6061 and 1215 steel
Lane, B. M. and Shi, M. and Dow, T. A. and Scattergood, R. (2010), Wear, 268(11-12), 1434-1441.
Review of vibration-assisted machining
Brehl, D. E. and Dow, T. A. (2008), Precision Engineering, 32(3), 153-172.
Tool force and deflection compensation for small milling tools
Dow, T. A. and Miller, E. L. and Garrard, K. (2004), Precision Engineering, 28(1), 31-45.
Investigation of the direction of chip motion in diamond turning
Jared, B. H. and Dow, T. A. (2001), Precision Engineering, 25(2), 155-164.
Influence of the grinding wheel in the ductile grinding of brittle materials: Development and verification of kinematic based model
Miller, M. H. and Dow, T. A. (1999), Journal of Manufacturing Science and Engineering, 121(4), 638-646.
An empirical tool force model for precision machining
Arcona, C. and Dow, T. A. (1998), Journal of Manufacturing Science and Engineering, 120(4), 700-707.
Contact between elastic bodies with an elliptic contact interface in torsion
Cuttino, J. F. and Dow, T. A. (1997), Journal of Applied Mechanics: Transactions of the ASME, 64(1), 144-148.
Fabrication of hydrodynamic instability targets
Jared, B. H. and Dow, T. A. and Garrard, K. P. and Moorefield, G. M. and Barnes, C. and Day, R. D. and Hatch, D. J. and Salzer, L. J. and Rivera, G (1997), Fusion Technology, 31(4), 501-503.

View all publications via NC State Libraries

Grants

PE Consortium Administrative Account
PE CONSORTIUM(1/01/18 - 12/31/18)
Develop Machining Processes to Produce Optimal Surface Finish and Minimal Tool Wear, PEC Core Project 4
PE CONSORTIUM(1/01/18 - 12/31/18)
Multi-Lens Array, PEC Enhancement Project
Oculus(3/01/17 - 12/31/18)
Precision Metrology, PEC Core Project 2
PE CONSORTIUM(3/01/17 - 4/01/18)
Precision Fabrication , PEC Core Project 1
PE CONSORTIUM(3/01/17 - 4/01/18)
Precision Actuation and Control, PEC Core Project 3
PE CONSORTIUM(3/01/17 - 4/01/18)
Diamond Tool Wear and Surface Finish when Machining Plastic Optics, PEC Enhancement Project
Oculus(3/01/17 - 12/31/18)
Membership in PE Consortium, Full Member
TRIAD National Security, LLC Formerly Los Alamos National Laboratory (LANL)(1/01/17 - 12/31/18)
Membership in PE Consortium, Full Member
Oculus(1/01/17 - 12/31/18)
Development of DAQ System for Grit Testing Machine
Saint-Gobain Abrasives, Inc.(11/01/16 - 8/31/17)