MPhil Thesis Defence


"Implementation of Algorithms for deciding castability"

By

Mr. Yo Sub Han


Abstract

In manufacturing an object by casting, molten liquid is poured into a
cavity formed by two cast parts. After the liquid is hardened, the two
cast parts retract in opposite directions and the object is separated from
the mold. There are two major geometric questions. First, how to decide
whether a given direction is a feasible casting direction? Second, how to
find feasible casting directions? In this thesis, we implemented
algorithms for answering these two questions and study them
experimentally. The first algorithm verifies the feasibility of a given
casting direction. The second algorithm speeds up the search for feasible
casting directions by restricting the search space using the object
geometry. Our implementation is based on CGAL and LEDA.


Date:			Thursday, 27 December 2001

Time:			10:00a.m.-12:00noon

Venue:			Room 3006
			Lift 3

Committee Members:	Dr. Siu-Wing Cheng (Supervisor)
			Dr. Sunil Arya (Chairman)
			Dr. Mordecai Golin


**** ALL are Welcome ****