There are different welding techniques available to facilitate a wide range of industries. Laser and TIG are the most popular ones with unique advantages. The common point is that you can use any of these methods for melting materials.
But which one is best for you? In this article, we will clarify everything you need to know about each welding process. Keep reading the article to understand the bits of the debate on laser welding vs TIG welding.
What Is Laser Welding?
Laser stands for “Light amplification by stimulated emission of radiation.” Laser welding is the process of joining materials using a focused laser beam. The workpiece is heated to its melting point through the beam. It is a continuous and focused energy burst onto a very small spot. Laser welding does the same as TIG, but it differs in application.
What Is TIG Welding?
TIG stands for Tungsten Inert Gas. This method uses powerful electric current for welding. The tungsten electrode and the workpiece are the two metals used in this technique. The current passes through the tungsten and creates an electric arc of 6000 °F (3300 °C). A filler metal rod is placed in the center of the arc welding.
In this entire process, there is high pressure flow of inert gases. The inert shielding gas keeps impurities away from the weld. You can use TIG welding without filler materials. However, it’s quite difficult to automate.
Laser Welding vs TIG Welding: What’s the Difference
Laser welding and TIG are widely used for melting materials but they have different welding systems in nature. Here are the main dissimilarities we need to know.
| Feature | Laser welding | TIG welding |
| Fusing Method | Laser welding uses a strong laser beam to melt the metal. | TIG welding uses an electric arc to melt and fuse. It inputs heat depending on the application. |
| Gas Shielding | It needs a separate tool to spread gas over the welding spot. | TIG uses gases like argon and helium to protect the weld. |
| Filler Material | Usually laser doesn’t need extra material to make the weld. | It often uses extra rods to make the weld. |
| Gap Coverage and Bridging | Laser sometimes struggles to fill gaps because it doesn’t use filler. | It is good at filling gaps because it uses filler material. |
| Thermal Stresses and Distortions | Laser welding leaves less stress and distortion in the metal. | TIG leaves more stress and distortion in the metal. |
| Applications | It is Ideal for industrial applications, including automotive, aerospace, medical equipment, and electronics. | It is good for a variety of applications, including construction, metal repairs, and small-scale workshops. |
| Productivity | Laser offers high productivity and fast welding speeds. | It is slower, resulting in lower productivity compared to laser welding. |
| Cooling Rate | Rapid cooling rate. It allows immediate handling of the welded material. | Slower cooling rate. It impacts the speed of handling and processing. |
| Crack formation | Laser can make the metal weaker and crack more easily. | TIG May lead to cracks forming because of how it cools. |
| Cost and Skill | Laser needs lots of money to start and special training. | It starts out cheaper and is easier for welders to learn. |
| Automation | Laser is highly suitable for automated processes and is easily integrated into CNC-controlled systems. | It is more challenging to automate, often requiring manual operation for best results. |
What Is Laser Welding Good for?
Laser welding is popular for its precision, speed, and versatility. It is a great option for large-scale manufacturing companies. Laser welding speeds up the efficiency of large production. It produces high-quality welds with smooth and clean finishes. This reduces the need for post-weld processing. It saves time and reduces production costs.
What Is TIG Welding Good for?
TIG welding is great for small-scale companies. The process of welding is more cost-friendly than laser. If you use different metal alloys, you benefit more from TIG welding. It gives you the flexibility to work with different metal thicknesses. It’s also excellent for making detailed welds, ensuring high-quality connections.
Is Laser Welding Better than TIG Welding?
Yes, a laser is better than TIG welding. Lager is used for joining the materials. You can automate laser welding and most of the industries use it. But if you are ok with filler metal and your application uses various metal alloys, then you can use TIG.
Each welding method has its own strengths and is better for different tasks. Laser welding is great for many industrial jobs because of its capabilities. But TIG welding is still useful for its special advantages.
When Should You Use Laser Welding Instead of TIG Welding?
Laser welding is the best choice when you need very precise and fast welding. It is perfect for small, delicate parts because it uses a concentrated beam of light. This method also works well when you have to join different types of metals.
TIG welding is better for larger projects that need strong, durable welds. Laser welding is best suited if you are looking for
- Precision and detailed Welding
- Faster welding time
- Less external contamination
- Vertical and overhead welding applications
- Smaller heat-affected zone
- Automated configuration
- Insignificant deformation
Conclusion
The decision between laser welding vs TIG welding depends on various things. It also depends on the priorities of your welding applications.
Both laser welding and TIG welding have strengths. Laser welding is fast and precise and great for small, detailed work. It’s also ideal for thin materials and mass production. On the other hand, TIG welding is more versatile and better for thicker materials and a variety of metals. It’s also easier for beginners to learn.
If you are new and facing problems, you can contact Fiber Laser Welder for the right equipment, expert guidance, and assistance.
