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Title: Process modeling and experiments for forging and welding.


Abstract not provided.

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Publication Date:
Research Org.:
Sandia National Lab. (SNL-CA), Livermore, CA (United States); Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
Report Number(s):
DOE Contract Number:
Resource Type:
Resource Relation:
Conference: Proposed for presentation at the 2015 SEM Annual Conference And Exposition On Experimental And Applied Mechanics held June 8-11, 2015 in Costa Mesa, CA.
Country of Publication:
United States

Citation Formats

Brown, Arthur, Deibler, Lisa Anne, Beghini, Lauren L., Kostka, Timothy D., and Antoun, Bonnie R. Process modeling and experiments for forging and welding.. United States: N. p., 2015. Web.
Brown, Arthur, Deibler, Lisa Anne, Beghini, Lauren L., Kostka, Timothy D., & Antoun, Bonnie R. Process modeling and experiments for forging and welding.. United States.
Brown, Arthur, Deibler, Lisa Anne, Beghini, Lauren L., Kostka, Timothy D., and Antoun, Bonnie R. 2015. "Process modeling and experiments for forging and welding.". United States. doi:.
title = {Process modeling and experiments for forging and welding.},
author = {Brown, Arthur and Deibler, Lisa Anne and Beghini, Lauren L. and Kostka, Timothy D. and Antoun, Bonnie R.},
abstractNote = {Abstract not provided.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 2015,
month = 3

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  • This paper describes a FEM-based computer system implemented by BethForge to model the open-die forging process and its application to product and process development. A brief overview of BethForge, the markets it serves, and the typical product development cycle is given. Alternative methods for modeling open-die forging are discussed and the advantages offered by FEM techniques due to recent advances in computer hardware and software are presented. The FEM-based modeling system that BethForge has developed in partnership with the Lehigh University Computer Integrated Manufacturing Laboratory (LU-CIM) and UES, Inc. is described along with the associated modeling methodologies. Several case studiesmore » are presented including 2D-axisymmetric simulation of head-forming, punch-forming, upsetting, and back extrusion, and the 3D simulation of ingot cogging.« less
  • We present a novel modeling approach to simulate FSW process that may have significant advantages over current traditional finite element or finite difference based methods. The proposed model is based on Smoothed Particle Hydrodynamics (SPH) method, a fully Lagrangian particle method that can simulate the dynamics of interfaces, large material deformations, void formations and material's strain and temperature history without employing complex tracking schemes. Two- and three-dimensional simulations for different tool designs are presented. Preliminary numerical results are in good qualitative agreement with experimental observations.
  • No abstract prepared.
  • We develop a model of the depth of penetration of the weld pool in gas metal arc welding (GMAW) which demonstrates interaction between the arc, filler wire and weld pool. This model is motivated by the observations of Essers and Walter which suggest a relationship between droplet momentum and penetration depth. A model of gas metal arc welding was augmented to include an improved model of mass transfer and a simple model of accelerating droplets in a plasma jet to obtain the mass and momentum of impinging droplets. The force of the droplets and depth of penetration is correlated bymore » a dimensionless linear relation used to predict weld pool depth for a range of values of arc power and contact tip to workpiece distance. Model accuracy is examined by comparing theoretical predictions and experimental measurements of the pool depth obtained from bead on plate welds of carbon steel in an argon rich shielding gas. Moreover, theoretical predictions of pool depth are compared to the results obtained from the heat conduction model due to Christensen et al. which suggest that in some cases the momentum of impinging droplets is a better indicator of the depth of the weld pool and the presence of a deep, narrow penetration.« less