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Proud to serve the welding industry worldwide

Our customers - Ford, GM, FCA, Volkswagen, Mercedes, Hyundai, Tata steel, and ArcelorMittal just to name a few

Optimization in Engineering

With continuous advancement of technologies and inventions of smarter products, the engineering processes are also getting more complex and sophisticated that need constant optimizations.

sorpas logo

SORPAS® is a professional welding simulation and optimization software specially made for resistance welding and mechanical joining processes. It has been developed by engineers for engineers to solve welding problems in industry.

The integration of welding engineering expertise with numerical modeling techniques has made SORPAS® a unique and powerful tool for engineers directly working in industry.

The SORPAS® software has been widely used by most of top automotive and steel making companies worldwide. Anyone with engineering knowledge in welding can quickly learn to use the software. It doesn’t need prior knowledge of numerical simulation. Many customers are using the software as a daily tool at welding shop floor or near welding production.

spot welding digitalization

Towards Industry 4.0 for digitalization of welding

The rapid transition to electric vehicles (EVs) has driven many technological developments in automotive and related industries. Digitalization and digital twins for welding are increasingly developed and applied through all stages of welding lifecycle from design to production and manufacturing systems. With continuous developments and improvements based on user feedback and experiences over 20 years, SORPAS® has become a useful software tool for welding simulation and optimizations of resistance welding and mechanical joining. It is used to solve welding problems for technology innovation, research and development, evaluation of materials weldability, weld process optimizations and planning, predictive production maintenance, and weld quality improvements etc.

Welding Technology…

Resistance welding, mechanical joining and adhesive bonding are highly productive and cost-effective joining technologies widely applied in manufacturing industry especially in automotive, aerospace, electronics and electrical industries. Resistance spot welding is predominantly used for joining thin sheets such as assembly of car body-in-white. Resistance projection welding is more used for joining complex or small parts such as nut welding, electronic circuits and electrical connectors. Mechanical joining processes including self-piercing riveting (SPR) and clinching are mostly used for assembly of cars with aluminum sheets, and also for joining dissimilar materials such as aluminum and steel or metal and carbon fiber materials. Adhesive bonding is increasingly used in car body assembly often combining with spot welding or SPR to improve the overall strength and stiffness of the car and crash performance.

These welding and joining technologies are constantly advanced through technological innovations aided with welding simulations and optimizations.


Resistance welding includes spot welding, projection welding, seam welding, butt welding and micro resistance welding…


Mechanical joining includes clinching, riveting, clinch riveting, self-piercing riveting and other joining processes by forming…

adhesive bonding

Adhesive bonding (also referred to as gluing) is to join materials by applying an intermediate layer of adhesives or glues…

numerical simulation

Numerical simulation is a computer technology by using numerical modeling methods to imitate engineering processes…