Arc Welding vs Laser Welding – What’s the Difference

Arc Welding vs Laser Welding

Welding is an essential process used in several industries for joining metal parts. Arrow and laser welding are widely used welding techniques, and people often need clarification on the two. Although both techniques are used for joining metal parts, their approach is entirely different. This blog will discuss the key differences between arc welding and laser welding.

Difference Between Arc Welding and Laser Welding


Arc welding is a process that uses an electric arc between an electrode and the metalwork to weld two pieces together. It creates intense heat that melts the metal and forms a molten pool. Laser welding, on the other hand, is a process that uses high-powered lasers to melt and fuse metal components.

Heat input:

Arc welding produces much heat and can cause distortions in the metal if not handled correctly. Laser welding, on the other hand, produces less heat and provides a more precise weld without causing distortions or damage to the material.


Arc welding is a manual process that requires skill and experience. The welder must control the welding rod and maintain the correct arc length to produce a good weld. Laser welding is an automated process using a highly focused laser beam to consistently produce precise and accurate welds.


Arc welding is time-consuming, and an experienced welder can produce around six inches of a weld in an hour. Laser welding, on the other hand, is a faster process and can produce three times the amount of a weld in an hour than arc welding.


Arc welding equipment is less expensive than laser welding equipment. However, arc welding requires additional equipment, such as gas cylinders and regulators, and the welding rods and electrodes are consumables, which adds to the cost. Laser welding equipment, although more expensive, does not require consumables and is less labour-intensive than arc welding, making it a more cost-effective solution in the long run.


In conclusion, arc welding and laser welding have advantages and disadvantages. Arc welding is a reliable, cost-effective, and manual process well-suited for welding thicker materials. Laser welding, conversely, is a precise, automated, and faster process ideal for welding thin, delicate materials. Ultimately, the choice between arc welding and laser welding depends on your project’s specific requirements and budget constraints.



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