ESI SysWeld is a 3D computer simulation software used for welding and heat treatment processes. The ESI SysWeld program is a fast, attractive and easy-to-use welding and heat treatment simulator that supports all welding and heat treatment engineering features. Features of ESI SysWeld software Management of the assembly of partial parts (mapping of defective geometry, mapping with initialization of physical properties, mapping with geometric transformation, etc.) Keeping the state based on the current defective geometry Update in-call parameters to improve convergence efficiency Heat treatment, machining and bonding for partial deflection