ESI Group announces new version of SYSWELD

 troy 13 Sep 99 ESI Group announced SYSWELD 99, the new version of its welding and heat treating simulation software. SYSWELD enables engineers to simulate continuous welding. resistance welding, quenching, induction hardening, thermo-chemical treatment, and surface treatment. SYSWELD detects deformations due to welding that cause fit and finish problems. In addition, it predicts residual stresses that enable failure risks to be evaluated. For continuous welding operations, where the heat source moves at a constant rate, SYSWELD drastically reduces computational time by offering steady-state conditions.

A wide range of heat sources can be used, including electrical sources required for spot welding. SYSWELD can determine geometric changes during quenching, assembly difficulties or excessive wear. It can simulate surface hardening and welding operations involving lasers.

SYSWELD is a multiphysics software that covers all the physical domains involved during heat treating processes. The accuracy of mechanical results obtained that way enables designers to evaluate the influence of the process on parts lifetime.

The product is used by:

  • Automotive: SYSWELD helped Volvo to find the best process parameters for induction hardening of a critical component. For PSA Peugeot Citroen, SYSWELD found the best cooling conditions for crank shafts quenching, and for Renault, it predicted accurately the final hardness of gear box components.
  • Energy: Tokyo Gas used SYSWELD to select the best process for pipes butt-welding. The software was also used by KHIC (Korea) to study the quenching of large components.The nuclear industry produces large weldments, and SYSWELD enables Framatome to predict the formation of residual stresses that weaken parts and are difficult to detect by physical testing.
  • Manufacturing: SKF, the leading rolling bearing designer and manufacturer, improved its heat treating technology with SYSWELD by reducing the number of tests and predicting the final hardness.
  • Steel Industry: Steelmakers like British Steel and Posco (Korea) benefit from SYSWELD to study residual stresses generated by welding or by the influence of hydrogen diffusion. With SYSWELD simulations, Usinor is able to offer valuable welding expertise to its customers.

New features of SYSWELD 99 include:

  • New shell and volume coupling enables more efficient welding simulation of thin structures, as the volume model can be limited to the area close to the heat affected zone.
  • A local refinement mesh tool for welding operations involving a moving heat source, enables engineers to get an optimized mesh refined around the current welding position.
  • ? Two new welding models for aluminum offer accurate simulations of alloys hardened by precipitation and crystallization.
  • A new solver for SGI M4 platforms divides computational time by 10.

SYSWELD is available on Windows NT and on UNIX platforms from Compaq/Dec, HP, IBM, SGI, and SUN.

 

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