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What is stud welding and how it works?

Overview of Stud Welding

Stud welding is a very simple, fast and accurate welding method, which combines two identical or different metals without the use of filler metal or any consumables. Many types of fasteners are used such as threaded, untreated, taped etc. Fastener and base metals are of many types of materials such as steel, stainless steel, aluminum etc. Stud welding is a process in which metal stud and base material joint together by heat and pressure. The Arc Stud welding method provides highly reliable fastening and used in wide range of applications.

 

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Major Benefits of Stud Welding

  • Stud welding has many advantages, from the other metal joining processes
  • This is a fast method and it takes less than a second to weld a metal stud
  • This work reaches one side of the piece and no mark is seen on the other side
  • This is an easy method and does not require any special skills or training to operate it
  • The strength of the weld joint is higher than its parent material or stud metal
  • There is no need to make a hole in it

Two Types of Stud Welding

Generally, two types of stud welding are used – Drawn Arc Stud Welding and Capacitor Discharge (CD) Stud Welding. The method depends on the required stud size, base metal, and their use.

Drawn Arc Stud Welding

The Drawn Arc Stud Weld is progressed to weld the large diameter studded fastener with thick base metal. In Drawn Arc Stud Welding we can weld diameter from 2 to 25 mm.

Capacitor Discharge Stud Welding

Capacitor Discharge Stud Welding is generally used to weld the thin base metals to the smaller diameter stud fasteners. The weld cycle can be completed in 0.01 seconds and can also weld on 0.5 mm thin material. According to DIN in capacitor discharge stud welding we can weld from M3 to M10 or diameter from 2 to 10 mm.

 

Guidelines to Stud Welding

  • Set appropriate weld time according to stud weld diameter and base material
  • According to the diameter of the weld base, set the suitable amperage
  • Make sure that the negative polarity is to the stud gun
  • Ensure the ground connection is completely tight and clean
  • Clean the work surface properly so that the impurities can not affect the weld
  • Keep the studs and ferrules clean and free of moisture
  • Remove the varnish, scale, rust and plastic surfaces from the work surface and ensure that the plate surface is electrically conductive
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3 comments on “What is stud welding and how it works?
  1. manish says:

    nice article

  2. Gauri Shankar says:

    Awesome information thanks for sharing this

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