Abstract

The effect of the fusion welding process upon the metals being welded is a matter of great interest and has been the subject of much investigation, both theoretical and experimental. The properties of metals are determined by the structure of their crystals (within limits for any given metal), and the crystalline structure is determined by heating and cooling rates. Thus the knowledge of temperatures, and heating and cooling rates, becomes the key to understanding these effects of heating. Since the greatest part of fusion welding is done using a gas torch or an electric arc, the necessary theoretical study is that of a heat source moving across the material. This problem has been invest!- gated and solved analytically for simple conditions and simple shapes, generally greatly idealized. The purpose of this study is to develop an approximate method of predicting temperatures due to a moving heat source in bodies of more complex geometry, with conditions more nearly approaching the actual.

Degree

College and Department

Ira A. Fulton College of Engineering and Technology; Mechanical Engineering

Rights

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