Engineer Mechanical

MOUNIR NJAH

**** ******** **. **, ******, MN **449

**********@*****.***

Phone: 763-***-****

PROFESSIONAL EXPERIENCE

**/**-******: Sr. Mechanical Design Engineer, Confidential Company, St.

Paul, MN.

Develop concepts and design customized #6 heavy fuel

oil handling systems to supply a large generator set (fuel oil engine-

driven electric power generation equipment) driven by a 1500KW to 4500 KW

two strokes engine. The generator set has to run with both #2 and #6 fuel

oil. The #6 FO must be heated to meet the viscosity required by the two

strokes engine. Interface with internal and external suppliers and

customers to develop high quality design. Utilize modeling and graphic

tools such as Finite Element Analysis, Computer Aided Graphics, and Fluid

Analysis to layout and model a complete system.

05/06-04/09: Sr. Mechanical Design Engineer, Airmo Inc., Coon Rapids, MN.

Develop concepts and design customized testing

machines and tools including end forming, swaging, hydro-forming and tube

testing such as: multi sets swaging machine, triplex expander, high

pressure system, semi automatic tube tester, hydro-forming machine for

copper pipe fitting, Semi-automatic Hose tester, etc. Apply engineering

principles, conduct appropriate prototyping, piloting, and testing to

improve some concepts and validate production machine, equipment and tool

designs. Create documentation (Drawings, BOM, and Schematics) for customers

and support use. Some redesigns are performed for existing product such as:

6KSI-60KSI quick disconnect, 30KSI live swivel, etc.

04/05-04/06: Mechanical Design Engineer, RFA/MN Engineering, Eden Prairie,

MN.

Redesign existing products with custom specifications. Off house Engineer

at Caterpillar Global Paving Products, Brooklyn Park, MN. Mechanical Design

support, review FMEA and recommend actions to improve high R.P.N. Run FEA

using Pro-Mechanica for design optimisation and validation. Off house

Mechanical Design Engineer at Clean Air Products, Brooklyn Park, MN.

Product development, redesign and document existing products.

10/02-02/05: Sr. Mechanical Engineer, MSGI (formerly S.G.C.), Sfax,

Tunisia.

Conceptualization to final design, analysis,

prototyping and fabrication assistance of special machines such as: an

automatic welding machine for lighting poles, a circular shape Oxy-fuel

cutting machine, an automatic octagonal shape welding machine a plasma

cutting machine, an electro-magnetic winch, a structured member conveyor

for a hydraulic punching machine, a mobile table and fixture for a radial

drill machine etc. All designs are performed using a 3D CAD, FEA analysis,

design validation and optimisation and have to be dealt with gearboxes,

ball bearing, frequency converters, sliders, hydraulic cylinder, hydraulic

pumps, pneumatic actuator, proximity sensor, etc.

04/01-01/02: Research assistant and industrial maintenance, University of

Minnesota, Minneapolis, MN.

Assisting research, servicing university facilities,

moving, and rebuilding experiments.

11/98-01/00: Plant/Mechanical Engineer, Les Grands Moulins du Sud. Sfax,

Tunisia.

Supervise a maintenance team, solving production

problems, improving production systems, packaging and cartoning machines.

Repairing and servicing processing machines. (600 running machines.)

03/96-09/98: Mechanical Engineer, SORETE, Sfax, Tunisia.

Maintenance and ventilation control, filtration,

refrigeration and A/C systems.

03/95-03/96: Sr. Manufacturing Engineer, Soci t D colletage Industrielle

du Sud. Sfax, Tunisia.

Mechanical processes designs and fabrication for

casting and injection molding. Cams design and cams cutting for automatic

machine tools.

02/92-02/95: Engineer & Production Manager, Soci t de Froid et de

Climatisation. Sfax, Tunisia.

Remanufacturing of hermetic compressors for

refrigeration and air conditioning units. Design and fabrication of welding

removal machine and welding machine for hermetic compressors.

09/90-08/91: Mechanical Engineer, Soci t Tunisienne d'Ing nierie et

Industrie. Sfax, Tunisia.

Design, fabrication assistance, and prototyping of

mechanical systems.

COMPUTER SKILLS

- SolidWorks (9,000+ Hrs), COSMOSWorks (1500+Hrs), Pro/E Wildfire (400+

Hrs),

Pro/Mechanica (200+ Hrs), Pro/Intralink 3.3 (100+ Hrs)

- Basic AutoCAD, Basic Ansys, Basic C-Mold.

- Microsoft Word, Microsoft Excel, and Microsoft Power Point.

- CNC Machine tools, CNC Injection molding machines, CNC Plasma

cutting machines.

HANDS ON SKILLS

- Metal forming (Milling, Lathing, Drilling, Grinding) and Welding

(TIG, MIG/MAG, Ox/Ac).

- Refrigeration, Cooling, Ventilation, and Air conditioning repairing

and servicing.

- Mechanical and electrical repairing and servicing.

PERSONAL PATENTS

- Pedal winch.

- Portable air compressor

- Silent compressor for dental industry.

PERSONAL INNOVATIONS

- Electronic fuel injector driver circuit for LPG moped

- LPG (Propane) motorcycle and moped.

- Continuous lubrication system for high RPM and 250 hp electric motors.

- Air dryer (without cooling system).

- Welding removal machine for hermetic compressors.

- Welding machine for hermetic compressors.

- Semi-automatic welding machine for concrete steel reinforcement.

- New method to renovate a wheat-grinding roller.

- An electro-mechanical filter (separate dusts, moisture, particles,

etc. from air).

REALIZATIONS AND FABRICATED APPARELS AND MACHINES

- Crane with three axes motion.

- Straitening machine for reinforcement concrete steel in coil.

- Casting removal press for aluminum parts.

- Vertical saw for Aluminum.

- Three pauses commercial panel (for advertising).

- Three bladed windmills.

- Computer software (Transfer of dimensions for mechanical parts and

manufacturing purpose).

EDUCATION

01/2002: 4 credits in Computer Aided Design and Realization and 3 credits

in Fluid Mechanics.

University of Minnesota, U.S.A.

06/2001: English proficiency, University of Minnesota, U.S.A.

06/1990: Bachelor's Degree and Master's Degree in Mechanical Engineering.

National Engineering School of Monastir (E.N.I.M.),

Monastir, Tunisia.

06/1985: University Diploma in Scientific Studies.

Science and Technology Institute of Monastir (F.S.T.M.),

Monastir, Tunisia.

06/1982: High school diploma (Mathematics, physics and technical sciences.)

Lyc e Technique 9 avril, Sfax, Tunisia.

INTERNSHIP

07/87-08/87: Soci t Nationale des chemins de Fer Tunisien (Railroad

company.)

07/88-09/88: Soci t les Fonderies Nouvelles (Foundry company.)

07/90-09/90: Soci t les Ateliers M caniques du Sud (Farming machines

factory.)

ACTIVITIES

01/07-present: Inventors' Network, Minneapolis, Minnesota, U.S.A.

10/86-05/88: Mechanical Engineering Club, E.N.I.M., Tunisia.

10/80-05/81: Mechanical Club, Lyc e 9 Avril, Sfax, Tunisia.

10/75-06/77: Electronics Club, La Maison des Jeunes de Sfax, Tunisia.

LANGAUGES

- Arabic

- English

- French

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