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Thermal Stress Development During Vacuum Arc Remelting and Permanent Mold Casting of Ingots
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The development of thermal stresses in ingots during the vacuum arc remelting (VAR) as well as specialized permanent mold casting (PMC) process was modeled via numerical solution of the ...
Can Design for Nonisothermal Pancake Forging of Gamma Titanium Aluminide Alloys
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The design of cans to produce uniform, defect-free gamma titanium aluminide alloy pancakes via conventional, nonisothermal forging, was established using finite element modeling (FEM) and laboratory ...
Modeling of Thermal Stresses and Thermal Cracking During Heating of Large Ingots
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The development of temperature gradients and thermal stresses during the heating of large ingots has been investigated with special reference to the selection of heating schedules for brittle ...
Measurement and Analysis of Heat Transfer and Friction During Hot Forging
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An investigation of heat transfer and friction during hot forging has been performed using experimental and analytical techniques. The interface heat transfer coefficient was measured in experiments ...
Defect Occurrence and Modeling for the Thermomechanical Processing of Aerospace Alloys
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Mechanism-based models for the evolution of defects during the thermomechanical processing of aerospace titanium- and nickel-based alloys are reviewed. These defects include those comprising ...
The Ring Test for P/M Materials
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The application of the ring test to assess die-workpiece interface friction during forging of powder metallurgical materials has been investigated. As for fully dense materials, the change in ...
Determination of the Interface Heat Transfer Coefficient for Non-Isothermal Bulk-Forming Processes
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Experimental and analytical techniques have been developed for the determination of the interface heat transfer coefficient for nonisothermal bulk-forming processes. A fixture consisting of two ...