Proud to serve the welding industry worldwide

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

Gap between sheets

What are the factors to cause unstable welding production? Gap between sheets is one of the causes. Understanding the effect of the gap would help to improve production stability and ...
Read More
sorpas logo

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 aiming to solve welding problems in industry.

It can be quickly learned and easily used by engineers with practical knowledge and experiences in welding and joining. It doesn’t need prior knowledge of numerical simulation.

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

SORPAS welding, joining, and testing screen shot
digital manufacturing operation

Towards Industry 4.0 for digitalization of welding

SORPAS® has been continuously developed and improved for industrial applications. It is now widely used by leading manufacturing companies for applications of resistance welding and mechanical joining all over the world supporting technology innovation, research and development, evaluation of materials weldability and weld settings, welding process parameter optimization, process planning, product launching, production maintenance, weld quality improvements, and trouble shooting to solve welding problems.


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

These joining technologies are constantly being advanced with modern innovations and computer technologies…

Resistance Welding

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

Mechanical Joining

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

Adhesive Bonding
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

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