Welding
Precision and Versatility in Sheet Metal Fabrication
Welding is one of the central processes in sheet metal fabrication, enabling the permanent joining of metal parts into complex assemblies and structures. In modern manufacturing, welding is indispensable for creating strong and durable connections that can withstand high mechanical stresses and challenging environmental conditions. Particularly, welding steel and aluminum requires specialized expertise and the use of appropriate techniques to achieve high-quality results. On this page, you will learn more about our welding services, especially the MIG (Metal Inert Gas), MAG (Metal Active Gas), and TIG (Tungsten Inert Gas) welding processes that we use for working with steel and aluminum.
The Importance of Welding in Sheet Metal Fabrication
Welding plays a crucial role in sheet metal fabrication, forming the foundation for producing stable and load-bearing metal structures. Unlike bolting or riveting, welding allows for a homogeneous connection of materials, where the individual metal parts are fused together by melting at the joints. This results in a solid, permanent bond that can withstand heavy loads.
In sheet metal fabrication, welding is used to join steel and aluminum components and fabricate complex assemblies. These assemblies are widely used in industries such as automotive, machinery, construction, and aerospace. The quality of the welds is critical to the functionality and durability of the finished products.
Certification According to DIN EN 1090 - Execution Class 2
To underline our high-quality standards and ensure compliance with the strictest safety and quality requirements, our welding processes are certified according to DIN EN 1090, specifically in Execution Class 2. This certification ensures that our welding work meets European standards for the execution of steel and aluminum structures. DIN EN 1090 guarantees that all relevant requirements for load-bearing capacity, durability, and safety of welded products are met. This certification is particularly important in the construction industry, as it confirms the quality and reliability of our welding services.
MIG, MAG, and TIG Welding Processes
We offer specialized welding processes that are ideally suited for working with steel and aluminum: MIG (Metal Inert Gas), MAG (Metal Active Gas), and TIG (Tungsten Inert Gas) welding. Each of these processes has specific advantages and is selected based on the material and application to achieve the best possible results.
MIG Welding (Metal Inert Gas)
MIG welding is a fusion welding process in which a continuously fed welding wire serves as both the electrode material and the filler material. The weld pool is shielded from atmospheric influences like oxygen and nitrogen by an inert shielding gas (usually argon or helium). This process is particularly well-suited for welding aluminum and other non-ferrous metals.
Advantages of MIG Welding:
- ✔ High welding speed: MIG welding allows for fast processing of large welds, increasing efficiency in production.
- ✔ Clean welds: The use of inert gas produces clean, slag-free welds that require minimal post-processing.
- ✔ Versatility: MIG welding is excellent for welding aluminum and thin sheets, providing controlled and precise welding.
MAG Welding (Metal Active Gas)
MAG welding is similar to MIG welding but uses an active shielding gas (usually a mixture of argon and carbon dioxide or pure carbon dioxide). This process is primarily used for welding unalloyed, low-alloy, and high-alloy steels. The active gas reacts with the weld pool and influences the properties of the weld.
Advantages of MAG Welding:
- ✔ Wide applicability: MAG welding is highly versatile and suitable for welding thicker steels and larger structures.
- ✔ High-strength welds: The active shielding gas enhances the strength of the weld, making it highly resistant to mechanical stress.
- ✔ Efficiency: The MAG process offers high deposition rates, leading to rapid progress in welding tasks.
TIG Welding (Tungsten Inert Gas)
TIG welding is a fusion welding process where a non-consumable tungsten electrode is used to create the weld pool. The weld pool is protected by an inert gas (usually argon) to ensure an oxidation-free weld. TIG welding is extremely precise and is often used for welding aluminum and high-quality steels.
Advantages of TIG Welding:
- ✔ Highest precision: TIG welding allows for extremely precise and controlled welds that are smooth and clean.
- ✔ Universal applicability: TIG welding is ideal for thin materials and for welding aluminum and stainless steel.
- ✔ No spatter formation: Unlike other welding processes, TIG welding produces little to no spatter, minimizing the need for post-processing.
Welding of Steel and Aluminum
The MIG, MAG, and TIG welding processes are ideal for welding steel and aluminum, two materials that are frequently used in sheet metal fabrication. Both materials require specific welding techniques due to their differing physical and chemical properties.
Welding Steel
Steel is one of the most commonly used materials in sheet metal fabrication. Welding steel requires specialized knowledge and techniques to create a durable and load-bearing connection. Depending on the application and type of steel, we choose the appropriate welding process. MAG welding is the preferred method for welding unalloyed and low-alloy steels, as it ensures high strength and toughness of the weld. For high-alloy steels and precise applications, TIG welding is used.
Welding Aluminum
Aluminum is favored in many industries due to its light weight and corrosion resistance. Welding aluminum presents specific challenges, as the material has high thermal conductivity and a tendency to oxidize. MIG welding is ideal for aluminum welding because the inert gas ensures a clean weld without oxidation. For particularly demanding applications where the highest precision is required, we use the TIG welding process.
Quality Control and Post-Processing
Quality is our top priority. We perform comprehensive quality checks to ensure that all welds meet the highest standards. After welding, the welds are inspected visually and, if necessary, through non-destructive testing methods (such as X-ray or ultrasonic testing) to ensure they are free of cracks, pores, or other irregularities.
We also offer post-processing of welds to achieve a smooth and aesthetically pleasing surface. This includes grinding, polishing, and, if necessary, coating the welds to achieve a perfect finish.
Conclusion
Welding is one of the key technologies in sheet metal fabrication, enabling the creation of strong and durable connections. With MIG, MAG, and TIG welding processes, we offer you the optimal solution for working with steel and aluminum. Each of these processes has specific advantages, which we apply to deliver the highest quality and precision in your projects. Additionally, our welding processes are certified according to DIN EN 1090, specifically in Execution Class 2, ensuring compliance with the strictest safety and quality standards. From selecting the right welding process to careful execution and comprehensive quality control, we provide everything you need. Trust in our welding expertise and let’s successfully complete your projects together.