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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.

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

The SORPAS® software is designed for engineers working on the welding shop floor or near the welding production. Anyone with a knowledge or experience of welding and joining can quickly learn to easily use the software as a daily tool. It doesn’t need prior knowledge of numerical simulation.

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

Towards Industry 4.0 for digitalization of welding

SORPAS® has been widely used by nearly all leading automotive companies and top steel producing companies worldwide. With continuously developments and improvements based on user experiences over 20 years,  SORPAS® has become a handy software tool for welding simulation and optimizations of resistance welding and mechanical joining processes. It has supported to solve welding problems for technology innovation, research and development, evaluation of materials weldability, weld process parameter 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…