Mechanical Engineer

C heng Deng

Address: **** ***** *****, #***, ****, Iowa, 50010

Phone: 515-***-****

Email: *************@*****.***

OBJECTIVE

Seeking an engineer position in materials processing, characterization and failure analysis, metallurgical,

mechanical design and development, property test, solid mechanics analysis and finite element modeling

PROFESSIONAL SKILLS

Experience in metals, plastic materials, ceramics manufacturing and deformation, material

characterization test including micro-hardness and nano-indentation, fracture toughness, tool wear,

bending, rolling, tensile and compress tests, correlation plastic deformation with microstructure

analysis including grain size, grain boundary, phase elements and possible transition, dislocation

density etc, and heat treatment including annealing, normalizing, quenching, tempering, stress

relieving, aging, case hardening,

Experience in powder metallurgy as mechanical milling, die press, sintering, laser manufacturing as

laser hardening, cutting and welding, and materials deformation includes tooling, cast, forge, welding.

Experience using light microscope, Zygo profiliometer, scanning electron microscopy (SEM), energy

dispersive spectroscopy (EDS), transmission electron microscopy (TEM), X-ray diffraction, Raman

spectroscopy, Nd:YAG laser, CO2 laser, computer numerical control(CNC), mechanical milling, cold

die press, vacuum sintering, nano-indention, hardness and tensile testing instruments.

Experience using AutoCAD, SolidWorks, Pro/Engineer, MasterCAM, ABAQUS and ANSYS.

C programming language, Matlab, Office Word, Excel, Powerpoint, Origin, Tecplot.

Excellent writing, communication and collaboration skills.

Ability to multi-task and keep up in a fast-paced work environment.

PROFESSIONAL EXPERIENCE

Research associate in Harbin Institute of Technology (Powder Metallurgy), 2006-2009

Fabricated ultra-fine grain magnesium alloys (Mg) with super yield strength by in-situ vacuum hot

pressing, dehydrogenation, sintering and further warm extrusion from pre mechanical milled

magnesium hydride nano powders (MgH2).

Analyzed the metal matrix composites and microstructure evolution of ultra-fine grain magnesium

alloy (Mg) using transmission electronic microscopy (TEM) technology.

Conducted compression, tensile, thermal expansion failure test and analysis to improve magnesium

alloy quality and process performance.

Synthesized anisotropic nano-szie Mo-Cu composites applied in super integrated circuits using

molybdenum, copper powders with nickel catalyst via mechanical milling, solid state phase sintering,

and extrusion.

Based on layer-by-layer metal matrix structure, designed a creative powder sintering process to

synthesize molybdenum-copper (Mo-Cu) composites by permeating copper powders into

molybdenum hard skeleton.

Designed uniaxial conductivity, hardness and thermo-stability test methods for measuring electronic,

mechanical and thermal properties of Mo-Cu composites.

Research associate in Iowa State University (Design and Manufacturing), 2010- Present

Designed and Manufactured high performance and cost-effective diamond micro-tools using

nano-diamond powders and an innovative Laser Shock Wave Induced Freeform Technique (LSWIFT)

A scarified layer was confined by transparent overlay and burned to evaporate by intensive laser beam

which resulted in great shock wave for processing.

Conducted multi-scale modeling to explore physics underlying LSWIFT to provide fundamental

knowledge for further fabrication optimization.

Conducted simulations to investigate the mechanism of laser shock processing: dynamic analysis by

ABAQUS/Explicit and static analysis by ABAQUS/Standard were performed in detail to predict the

residual stress field, microstructure evolution and densification of final products.

Welded AISI 304 stainless steel foils by Q-switch Nd:YAG laser in seam

Analyzed quality and heat transfer of this welding process, and results showed that comparison to

resistance seam welding, laser welding required nearly three times less heat input and produced welds

having 50% narrower seam, 15% less porosity, 25% stronger and improved surface aesthetics

Coated nano-diamond powders in cutting tools surface to improve corrosion and fatigue resistance via

laser assisted manufacturing due to surface and subsurface microstructure improvement, including

dislocation density increase, phase transition and grain refinement.

Conducted experiments to test coating stability and adhesive failure analysis

Research associate in Iowa State University (Ceramics Processing), 2009-2010

Researched the effects of using a wire saw to cut a single crystal wafer of lead magnesium niobate

lead titanate (PMN-PT).

Optimized machining process and investigated improvements of wafer surface roughness, waviness,

cracks and other defects.

Modeling for volume strain and stress analysis due to phase transition in process of wire saw and etch.

Internship, Hunan Boyun New Materials Company, Changsha, China, 07/2009 – 08/2009

Duties Included: Structure design of carbon/carbon composite brakes and test including: thermal

conductivity, diffusion, wear test etc.

Internship, First Automobile Works (FAW), Changchun, China, 10/2006 – 11/2006

Duties Included: Forge technician and mechanical design of car body structure

EDUCATION

IOWA STATE UNIVERSITY, AMES, IOWA, US

Ph.D. Mechanical Engineering, Aug. 2014 (GPA: 3.7/4.0)

M.S. Engineering Mechanics, Dec. 2010 (GPA: 3.75/4.0)

HARBIN INSTITUTE OF TECHNOLOGY, HARBIN, China

M.S. Material Processing Engineering, Jul. 2009 (GPA: 3.6/4.0)

B.S. Material Forming and Control Engineering, Jul. 2007 (GPA: 3.6/4.0)

PUBLICATIONS

Cheng Deng, Ming Liu, Pal. Molian. Nanodiamond powder compaction via laser shockwaves: experiments

and finite element analysis, Journal of Powder Technology, 2013: pp 36-46.

Cheng Deng, Pal Molian. Laser shock wave treatment of polycrystalline diamond tool and

nanodiamond powder compact, International Journal of Advanced Manufacturing and Techonology,

2012: pp. 259-267

R. Melookaran, A. Melaibari, Cheng Deng, Pal. Molian. Laser Shock Processing on Microstructure

and Hardness of Polycrystalline Cubic Boron Nitride Tools With and Without Nanodiamond, Journal

of Materials and Design, 2012: pp. 235-242

Heng Wang, Cheng Deng. Research on the reaction dynamic and structure evolution of the

magnesium alloy powder by mechanical milling in an atmosphere of hydrogen, Journal of Science

paper online, 2009: 05-17

Cheng Deng. Study of finite elastic plane with multiple hole, Journal of Harbin Institute of Science

and Technology, 2008:04-40

AWARDS & HONORS

Iowa State University Research Excellence Awards, 2013

2nd place of 6th annual Business Plan Competition in China, 2007-2008

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