request a Proposal

Welding is one of the most used and oldest metal fabrication techniques. When metal pieces are cut and require joining, most sheet metal manufacturing companies in Noida use welding for the task. 

Welding is a major part of sheet metal fabrication and is used to produce parts for different industries, including automobile, aviation, construction, plumbing, etc. There are different welding techniques. You can search for “Sheet Metal Industry Near me” and find industries using different welding methods. 

But do you know which is best for your industrial applications?

If not, no worries.

This article provides a detailed view of the various techniques used in welding sheet metal, along with their advantages and applications. One can also get information on weldment best practices at approved sheet metal.

3 Expert Weldment Techniques for Sheet Metal Fabrication

Spot Welding

Also known as electric resistance welding, spot-welding uses heat obtained from resistance to electric current to join metal parts. It involves transferring electric current through two pins pinching two or more layers of metal together. When the wire heat, it makes the material melt into a coin at the point of contact, joining the metals.

The process requires minimal setup, making the technique affordable and efficient. It is best for high-volume production and perfect for industries like automobiles, electronics, etc.

Seam Welding

The welding technique comes into the picture when there is a need for fusing workpieces of similar or dissimilar materials along a constant seam. It ensures that the surfaces are regular at the seams. The technique involves electrical resistance to create a seamless, persistent joint between the sheet metals. 

Seam welding can further be broken down into two main techniques:

  • Resistance seam welding – To create airtight and watertight seals. It is best for marine applications, pressure vessels, shipping containers, and tanks.
  • Friction seam welding – To join workpieces in the solid phase or without melting either of the materials. It offers solutions for tough manufacturing problems.

Plug Welding

Also known as rosette welding, plug welding is the technique that is mainly used for creating automotive parts. It makes coin-like deposits on the overlapping sheet metal to fuse it with the other sheet metal. The process involves heat that melts the metal, fills the hole (made into one sheet to layer it over the other), and joins the parts together.

The process is suitable for doing auto repairs and similar tasks.

Weldment Best Practices at Approved Sheet Metal

  • Using low heat to avoid metal distortion: Excess application of heat to a part during welding may result in curve, oil-can, or warp. Therefore, it is necessary to set the welder’s temperature correctly to achieve optimal strength without heat distortion.
  • Cleco holes for precision alignment: The task can be achieved by using CAD software as it will add alignment holes into the design. It will further ensure the precise placement of all the parts in the assembly.
  • Custom fixtures: When heat is applied, the parts tend to move, making it hard to achieve the desired results. Using custom fixtures will hold everything in place to ensure that the part comes out as designed.

Choose Sangeeta Industries For All Your Welding Requirements

Sangeeta Industries, one of the leading sheet metal components manufacturers in Faridabad, can serve you with your welding requirements. 

We offer the best custom parts and services to all industries. Our services include welding, laser cutting, and other related technologies.

We provide exceptional and professional sheet metal fabrication services. We just want you to let us know your requirements, and our personnel will guarantee high-quality parts at competitive pricing and faster lead times.

Request a quote at