Thesis (Ph. D.)--University of Hong Kong, 1993.

Thesis (M. Phil.)--University of Hong Kong, 1998. / Includes bibliographical references (leaves [156-162]).

Thesis (M.S.)--West Virginia University, 2009. / Title from document title page. Document formatted into pages; contains xi, 86 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 64-65).

Thesis (Ph. D.)--University of Missouri-Columbia, 1996. / Typescript. Vita. Includes bibliographical references (leaves 134-139). Also available on the Internet.

Thesis (Ph. D.)--University of Missouri-Columbia, 1996. / Typescript. Vita. Includes bibliographical references (leaves 134-139). Also available on the Internet.

Thesis (M.S.)--Brigham Young University. Dept. of Mechanical Engineering, 2008. / Includes bibliographical references (p. 79-81).

Thesis (M.S. in mechanical engineering)--Washington State University, December 2007. / Includes bibliographical references (p. 91-94).

A software package and associated hardware have been developed which gives users of the ORAC CNC Training Lathe an easier and faster method of manufacturing on the lathe. The package, entitled ORACAP, uses the computing power of a mini-mainframe computer, a VAX 11/750, to assist in part design, program generation, program optimization, and program proving for the ORAC Lathe. The package is designed for users unfamiliar with computers such as students in an educational institute or workers in a production facility and uses command procedures to simplify the preparation and execution of the modules of the package. In addition to providing users with a valuable tool for manufacturing, ORACAP also gives users insight into the Computer Aided Design and Computer Aided Manufacturing methods used in industry, that is, it demonstrates the methods which allow production of a part from a very concise description of its geometry. Finally, ORACAP demonstrates the production advantages of a CAD/CAM system over conventional manufacturing methods for small to medium size batch production. / Applied Science, Faculty of / Mechanical Engineering, Department of / Graduate

This thesis describes research into the use of interactive methods to create three-dimensional drawings for the conceptual phase of engineering design. Discussion on developing an efficient user interface for conceptual design and techniques for creating three-dimensional sketches is provided. The work also includes design and implementation of a user interface for creating simple three-dimensional drawings. A program was written to implement the creation of three-dimensional drawings in an oblique view with a graphics tablet and multi-button cursor. It allows the user to sketch in a way similar to that done on a piece of paper. Three-dimensional data is generated from two-dimensional input. Depth cueing for the sketched object is given by interactive orthographic projections onto primary planes and rotation about different axes. The menu and display makes use of icons and color to improve user familiarity and feedback. Only straight line drawing, which is represented in arrays of end-points, is implemented. / M.S.

Automation of the process planning function is necessary for the effective linking of Computer-Aided Design (CAD) and Computer-Aided Manufacturing (CAM). Before automated process planning is performed, primitive geometric data from CAD databases needs to be converted to higher-level feature information required by the CAM systems. Many feature recognition algorithms have been developed to extract geometric features from different CAD representation schemes. However, the algorithms are CAD modeler dependent. This research addresses the problem of developing a standardized file format, Complete Geometric and Topological File Structure (CGTS), for feature recognition purposes. Algorithms for conversion of 3-D wire-frame data to CGTS format have been developed, using C++, and the process of feature recognition demonstrated using the CGTS file format. / Master of Science