Semester

Fall

Date of Graduation

2009

Document Type

Thesis

Degree Type

MS

College

Statler College of Engineering and Mineral Resources

Department

Industrial and Managements Systems Engineering

Committee Chair

Rashpal S Ahluwalia

Abstract

It is mandatory for every Industrial Engineering (IE)/Mechanical and Aerospace Engineering (MAE) undergraduate student at WVU to complete the IENG 303 course, introduction to manufacturing processes. At present this course covers Welding, Machining, Casting, AutoCAD (2D), and CNC (Computer Numerical Controlled) programming.;The focus of this thesis was to develop laboratory material so as to introduce solid modeling and rapid prototyping. A "T" shaped bracket was designed in AutoCAD 2008 and manufactured on the RX-1 rapid prototyping machine. The effect of change in saturation level from 46.24% to 45.00%, change in curing temperature from 350°F to 400°F and change in curing time from 2 hrs to 2.5 hrs on the dimensions of the manufactured part was examined.;It was found that a higher saturation level of 46.24% and lower curing time of 2 hrs resulted in lower expansion of the part in X and Z direction, however the expansion in Y direction was higher under the same conditions. At 46.24% saturation level and higher curing time of 2.5 hrs expansion in the Z direction was found to be higher compared to that of X and Y direction. Experiments run at lower saturation level of 45.00% at higher temperature of 400°F resulted in higher shrinkage in the part. The layering error of 0.002" layer thickness was also considered and the layering error was subtracted from the resultant dimensions to determine the percentage change in dimensions.

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