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The TOSTA blog aims to share the prototyping and rapid manufacturing knowledge, experience and skills we have accumulated over the years.

Sheet Metal Welding

Sheet metal welding has argon arc welding, laser welding, spot welding, carbon dioxide protection welding, stainless steel sheet welding, aluminium sheet welding manual arc welding, etc. With the advent of technology, the process of sheet metal welding has evolved over the years.

Sheet Metal Welding Process

Sheet metal welding involves heating and melting sheet metal parts and joining them together to increase their strength or create a single integrated product. This process is widely used in various manufacturing industries, such as automotive, aerospace, construction, and equipment production. Common applications include welding metal frames, cabinets, HVAC systems, and other metal products.

As one of the professional sheet metal components companies, TOSTA understands the differences between the existing welding techniques. we have expertise in different welding techniques, enabling us to make informed decisions when choosing the most suitable welding method for each project to meet our customer’s requirements. That’s why we can make a wise decision when it comes to picking the right welding technique for any projects from our customer.

Laser welding

Laser welding allows metals and metallic alloys to be welded, creating a thin and deep weld, with reduced heat deformations thanks to the reduced heat, even on materials that could not otherwise be welded.

TIG welding

TIG welding is one of the most popular welding methods since it provides high-quality components. Especially indicated to weld thin parts, it can be used for both continuous and spot welding.

MIG welding

MIG welding, also called MAG welding, is a continuous wire welding process where a shielding gas ensures firing bath protection. MIG or MAG welding is used where high productivity and high flexibility of use are required.

Equipment List
5-Tig Welders, 300 amp, by Miller.
2-Tig Welder, 250 amp, by Ltech.
2-Tig Welder, 250 amp, Cobramatic for aluminum.
2-Tig Welders, 330 amp, by Miller.
2-Airco wire feed.
2-Welder Airco.
2-TRW stud welding machine.
5-Portable welder
5-Tig Welder, 300 amp, by Airco.
2 Miller heliarc welder.
2-Tig Welder, 250 amp, Miller Syncrowave
2-Mig Welder, Miller, 300 Amp.
2-Miller CP300, wire feed.
2-Acme spot welder, 30″ arm, water cooled, air timer.
5-Gas powered field welder, Miller

Qualified Sheet Metal & Welding has been serving small and large clients for over 10 years. We have successfully completed thousands of projects for commercial, industrial, pharmaceutical, and aerospace clients from China and abroad. Our commitment to innovation and hard work has earned us a reputation as a reliable and experienced sheet metal fabrication company.

At TOSTA, we use the highest-quality materials, the best cutting-edge technologies, and the most efficient welding processes to ensure the accuracy and precision of our work. Our 20 years experienced engineer and professional service teams have successfully completed high-level customer requirements. We offer customized solutions for each client and ensure the most accurate and precise workmanship available in this field.

Sheet Metal Welding Applications

Welding Process

Welding thin sheet metal demands a delicate touch and specific methods compared to thicker materials. Thin metals are more prone to warping and burn-through, making it essential to employ the right equipment and techniques.

Both TIG and MIG welding are suitable for welding thin metal sheets, but when working with extremely thin stainless steel or aluminum, the TIG method takes precedence due to its exceptional heat input control.