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Guide to Welding Aluminum Tubing - Megmeet Welding

Aluminum is a lightweight, corrosion-resistant, and versatile metal that is widely used in various industries, such as aerospace, automotive, construction, and marine. However, welding aluminum can be challenging due to its high thermal conductivity, low melting point, and tendency to form oxide layers. Therefore, it is important to choose the right welding method, equipment, and consumables for aluminum tubing projects.

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One of the most common and effective welding methods for aluminum tubing is TIG (tungsten inert gas) welding. TIG welding uses a non-consumable tungsten electrode to create an arc between the electrode and the workpiece, while a shielding gas (usually argon) protects the weld pool from atmospheric contamination. TIG welding offers several advantages for aluminum tubing, such as:

  • High-quality welds with minimal distortion and spatter

  • Precise control over the heat input and weld penetration

  • Ability to weld thin and complex shapes

  • Clean and aesthetic appearance of the welds



However, TIG welding also requires a high level of skill, experience, and patience, as well as proper preparation and cleaning of the aluminum tubing. To achieve optimal results, you need to follow some basic steps:

  1. Clean the aluminum tubing with a stainless steel brush or a solvent to remove any dirt, oil, grease, or oxide layers. Aluminum oxide has a higher melting point than aluminum and can interfere with the weld quality and strength.


  2. Choose the right filler metal for the aluminum alloy you are welding. The filler metal should have a similar chemical composition and melting point as the base metal. You can refer to the Guide for Aluminum and its Alloy Welding by Megmeet Welding for more information on the suitable filler metals for different aluminum alloys.


  3. Set up your TIG welding machine according to the specifications of the aluminum tubing, such as the diameter, thickness, joint type, and position. You can refer to or download Megmeet Welding product specifications for some general guidelines on how to adjust the current, voltage, polarity, gas flow rate, and electrode size for TIG welding aluminum.


Hold the torch at a 10-15 degree angle from the vertical and maintain a consistent distance of about 3-4 mm between the electrode and the workpiece. Keep the filler rod close to the weld pool and feed it smoothly and steadily. Move the torch along the joint with a uniform speed and avoid stopping or pausing at any point.


Allow the weld to cool down naturally and avoid touching or quenching it. Clean the weld with a wire brush or a solvent to remove any slag or residue.


If you are looking for high-quality and reliable TIG welding products for your aluminum tubing projects, you can trust Megmeet Welding. Megmeet Welding is a leading manufacturer and supplier of welding equipment and solutions in China, with over 15 years of experience in the industry. Megmeet Welding offers a wide range of TIG welding products, such as MetaTIG 315/400/500 ACDC welding machines and MetaTIG 315/400/500 DC welding machines.



Megmeet TIG welding machines are suitable for different applications and environments. Whether you need a portable, compact, or heavy-duty TIG welding machine, Megmeet Welding has it all. Megmeet’s TIG welding machines are designed with advanced technology and features, such as:

  • Inverter technology that ensures stable and precise output

  • Digital control panel that allows easy operation and adjustment

  • Pulse function that enhances the weld quality and appearance

  • Hot start function that improves the arc ignition

  • Arc force function that prevents sticking and spatter

  • Overload protection that ensures safety and durability


With Megmeet Welding’s TIG welding products, you can weld aluminum tubing with ease and confidence. Megmeet Welding’s TIG welding products are certified by ISO 9001, CE, CCC, and other international standards. Megmeet Welding also provides excellent after-sales service and technical support for its customers. If you want to learn more about Megmeet Welding’s TIG welding products, you can visit their website at
https://www.megmeet-welding.com/en or contact them at +86-755-86600555 or welding@megmeet.com.