Accession Number : ADA187797

Title :   Mechanisms in Thermal Mechanical Forming of Plates.

Descriptive Note : Master's thesis,

Corporate Author : MASSACHUSETTS INST OF TECH CAMBRIDGE DEPT OF OCEAN ENGINEERING

Personal Author(s) : Malaret, Hiram A

PDF Url : ADA187797

Report Date : May 1987

Pagination or Media Count : 90

Abstract : The angular deflection produced by flame line heating as plate dimensions are varied, specifically in the direction of heating, is examined. The behavior is found to be similar to that observed when the line of heating approaches a plate edge and the bending, in both cases, can be obtained from the same parametric curve. The parameter values defining these curves are related to process variables: the thermal power and speed of travel of the heat source. Additionally, the in-plate variation in bending is characterized. The application of these findings to the formulation of a bending prediction model that incorporates plate dimensions as well as location of the heating line is presented. The extension of this model to predict bending at specific locations within the plate is discussed, and recommendations for further research are made. Keywords: Metal plates; Ship plates; Material forming; Thermomechanics; Edge effect; Laser line heating.

Descriptors :   *MECHANICAL WORKING, *METAL PLATES, *SHIP PLATES, *METALWORKING, ANGULAR MOTION, BENDING, EDGES, FLAMES, FORMULATIONS, GRAPHS, HEAT, HEATING, LASERS, MATERIAL FORMING, MODELS, PARAMETRIC ANALYSIS, PREDICTIONS, SOURCES, THERMAL PROPERTIES, THERMOMECHANICS, THESES, SHIPBUILDING, DEFLECTION, FABRICATION, INDUSTRIAL PLANTS, VEHICLE CHASSIS COMPONENTS, THERMAL STRESSES

Subject Categories : Fabrication Metallurgy
      Properties of Metals and Alloys
      Marine Engineering

Distribution Statement : APPROVED FOR PUBLIC RELEASE