Mechanical Electrical

Jian Chen

*********@*****.***, 614-***-****

Laser Material Process Lab, Welding Engineering

**** ****** * ***** **., Columbus, OH 43221, USA

SKILLS

- Expertise in laser material processing (laser welding, cutting,

micromachining) and laser optics; familiar with laser systems (IPG

fiber laser, Clark-MXR femtosecond laser, Spectra-Physics CW/pulsed

Nd:YAG laser )

- Highly proficient in hardware control and computer programming (CNC,

PLC, Labview, Matlab/Simulink, PSIM and Visual Basic, Visual C++)

- Highly proficient in CAD mechanical design (Solidworks, Catia, Pro-E

and AutoCAD) and FEA structural/thermal analysis (ABAQUS, ANSYS,

ProCast)

- Hands-on experience with metallurgical analysis and material

characterization techniques (SEM, EDX, FIB, AFM and STM)

EXPERIENCES

Post-Doctoral Researcher

(Welding Engineering, Ohio State University, 2010-present)

- Continuous manufacturing process development of MgB2 MRI

superconductor wires. (a) Fiber laser welding process development, (b)

Superconductor powder filling process modeling and feedback control.

Research Associate

(Industrial, Welding and Systems Engineering, Ohio State University, 2005-

2009)

- National Science Foundation (NFS) project: Developed a novel nanoscale

welding process based on femtosecond laser-induced electrical

discharge. (a) Wrote Labview programs to integrate 3-axis piezo-motion

table, mechanical shutter, oscilloscope and CCD camera, (b) process

design and optimization, (c) data acquisition and analysis, (d)

material surface characterization (SEM, AFM, STM, EDX, FIB, etc).

- Designed and optimized fiber-laser micro-welding process with nickel

based alloy for a MEMS device

- Studied the Nickel-690 alloy TIG welding process with electromagnetic

stirring (to refine grain size and reduce crack defects)

- Machined micro-scale patterns on various materials (metal, glass,

semiconductor and biomaterial surfaces) for different applications

with femtosecond laser and CNC control system.

- In charge of femtosecond laser system maintenance

Research Associate

(Department of Modern Mechanics, Univ. of Sci. & Tech. of China, 2002-

2005)

- Designed testing samples and fixtures to study the mechanical

properties of nanoporous alumina thin film, and measured deformation

by using laser speckle interference technique.

- Performed mechanical tests for these porous films, and applied

numerical simulation for the tests by using self-programmed finite

element code and ABAQUS.

Intern

(Shanghai Diesel Engine Co., LTD, 2001)

- Analyzed metallurgical microstructure of aluminum alloy to enhance the

mechanical property

- Conducted computer simulations of injection and solidification

processes for aluminum alloy casting parts to optimize the

manufacturing process

EDUCATION

- Ph.D. in Industrial & Systems Engineering (Manufacturing)

The Ohio State University (December 2009)

- M.S. in Mechanical Engineering

University of Science & Technology of China (June 2005)

- B.S. in Material Forming and Control

Jiangsu University (China, June 2002)

HONORS AND ACTIVITIES

- Award for the excellent leadership of Students Association (Jiangsu,

China, 2000)

- 2nd place in the 2nd Mechanics Competition (Jiangsu, China,1999)

- Winner's prize in the 8th Physics Competition (Jiangsu, China,1999)

- President of Students' Association of Science and Technology (Jiangsu

University, China, 1999-2000)

JOURNAL PUBLICATIONS

1. J. Chen, L.N. He, D.F. Farson, S.I. Rokhlin, 'Comparison of Experimental

and Simulated Electrical Discharges in Small Gaps and Anode Melting',

Physical Review D (in review)

2. J. Chen, L.N. He, D.F. Farson, S.I. Rokhlin, 'Simulation of Femtosecond

Laser-induced Electrical Discharges in Small Gaps', Journal of Applied

Physics (in review)

3. J. Chen, D.F. Farson, S.I. Rokhlin, 'Experimental study of femtosecond

laser-stimulated electrical discharges in small gaps and surface

modifications', Journal of Applied Physics, 105 (2009), 013302

4. J. Chen, D.F. Farson, S.I. Rokhlin, 'Femtosecond laser stimulation of

electrical discharges in submicron and nanoscale gaps', Applied Physics

Letter, 90 (2007), 201505

5. J. Chen, D.F. Farson, S.I. Rokhlin, 'Femtosecond laser-triggered

electrical discharges at nanoprobe tips for nanoprocessing',

International Journal of Nanomanufacturing, 1 (2007), 825 - 835

6. P. Gu, J. Chen, J. Zhao, X. Wu, 'Elastic Modulus Investigation of

Nanoporous Alumina Membrane', Journal of Experimental Mechanics (China),

03 (2007).

7. J. Chen, P. Gu, Z. Liu, J. Zhao, 'Transversely Isotropic Elasticity of

Porous Alumina Film', Journal of Experimental Mechanics (China), 03

(2006).

8. J. Chen, P. Gu, Z. Liu, J. Zhao, 'Mechanical Property Testing and

Numerical Simulation of Alumina Films Containing Highly-Ordered Nanopore

Array', Journal of Experimental Mechanics(China), 02 (2006).

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