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What is a spot welding machine used for

Source:Mechanical products Editor:Dongguan Forworld Technology Co., Ltd. Publication Date:2025-12-31
  

Spot welding machine is a device that uses resistance heat to instantly weld metals, mainly used for welding lithium batteries, hardware components, and industrial assembly lines. It uses high current (up to 3000A) to generate high temperature at the metal contact point, combined with electrode pressure to achieve high-strength connection.

00:05 Basic parameters and functions of spot welding machine

00:20 Welding Effect Display

00:53 Actual welding operation

core principle

Resistance heating effect: When current passes through a metal contact point, heat (Q=I ² · R · t) is generated due to resistance, causing local melting and rapid cooling of the metal.

Electrode pressure: The electrode applies pressure to ensure a firm welding, suitable for various metals.

main purpose

Lithium battery welding: such as the Finiris small intelligent spot welding machine, suitable for battery assembly.

Hardware structure welding: such as Shengde fully automatic building mesh welding machine, used for welding steel mesh sheets.

Industrial assembly line: such as the intermediate frequency spot welding machine of Wuxi Haifei Intelligent Equipment, used in industries such as automobiles and electronics.

Spot welding machines have the characteristics of high production efficiency, low cost, and material saving, and are widely used in fields such as aviation, automotive, and electronics.