Mechanisms in Thermal Mechanical Forming of Plates.

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.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1987
Accession Number
ADA187797

Entities

People

  • Hiram A. Malaret

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Energy and Power Technologies
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Engineering
  • Experimental Data
  • Geometry
  • Marine Engineering
  • Materials
  • Measurement
  • Mechanical Engineering
  • Mechanics
  • Metal Plates
  • Naval Architecture
  • Residual Stress
  • Shape
  • Stress Strain Relations
  • Stresses
  • Temperature Gradients
  • Thermal Expansion
  • Yield Strength

Readers

  • Structural Dynamics.
  • Thermal Physics or Thermal Science.

Technology Areas

  • Directed Energy