ESAB offers a complete line of welding and cutting products and solutions. Explore our equipment offering with ease based on product line and industry.
ESAB is a world leader in welding and cutting equipment and consumables. Explore our complete line of welding and cutting products for virtually every application.
ESAB University Courses are incremental, structured learning modules designed to help you take your skills to the next level. New courses are being added regularly, so please check back often. Click the link to see current courses offered.
Specialty Alloys Webinars
Articles cover industry topics more in-depth and are created in partnership with ESAB engineers and master welders. Click the links to see the latest.
Tips from ESAB Experts to help take your welding, cutting and fabrication skills to the next level.
ESAB University videos are curated with tips and best practices from top fabricators around the world. Learn new techniques or improve your current skills with ESAB University videos.
Enhance your knowledge of welding, cutting, and fabrication with free and accessible webinars on a variety of topics, including welding best practices, tips for using ESAB products, new product launches, and more, presented by trusted ESAB experts.
ESAB is a world leader in welding and cutting equipment and consumables. We offer a complete line of fabrication solutions for virtually every application.
ESAB Newsroom - Stay up to date with the latest news from ESAB. View press releases, product announcements, corporate news, and more here.
ESAB UK Pension Scheme Information
ESAB EHS (Environment, Health and Safety) initiatives are monitored with the highest degree of importance and commitment to safety is ingrained in our culture.
The history of ESAB is the History of Welding. Go here to view an interactive look at ESAB's history in shaping the future of innovation in welding, cutting and fabrication.
View available job openings and more on the ESAB Careers page.
Purchasing from an ESAB Authorised Distributor guarantees you first-class customer service and support for all ESAB products.
ESAB offers a wealth of product support resources, including a range of technical and service publications, from Safety Data Sheets and downloadable product manuals to product certifications.
Visit ESAB's global manual search engine to access the items below and more.
Global User Manuals
Instruction Manuals
Spare Parts List
Product Storage Instructions
View Main Contact Page
View ESAB Location Information
No playlist found! Your playlist can be created here.
Welding
Tungsten Inert Gas (TIG or GTA) welding is a precise and versatile welding process, known for its ability to produce high-quality welds on various metals. However, like any welding technique, TIG welding can encounter issues, one of which is porosity. Porosity in welds refers to the presence of small cavities or voids within the weld bead. It weakens the weld and compromises its integrity. In this article, we'll explore some of the causes of porosity in TIG welding and discuss effective strategies to prevent it.
Porosity can manifest as tiny gas pockets or voids in the weld, which appear as small, round holes. These voids significantly reduce the weld's strength and make it more susceptible to cracking and failure. It can result from various factors and conditions during the welding process.
Porosity in TIG welding is primarily caused by the entrapment of gases, such as hydrogen, nitrogen, oxygen, and moisture, within the molten weld pool.
To prevent porosity effectively, it's essential to understand the common factors that contribute to its occurrence:
Preventing porosity in TIG welding requires careful consideration of the factors mentioned above. Here are some tips and techniques to help you achieve porosity-free welds:
Porosity in TIG welding is a common issue, but with proper knowledge and careful attention to key factors, it can be effectively prevented. Cleanliness, appropriate gas shielding, electrode selection, and sound welding techniques are essential for achieving porosity-free welds. By following the tips and techniques outlined in this article, you can produce high-quality TIG welds with the confidence that your welds will be strong, durable, and free from porosity-related defects.
For further insights into TIG welding, make sure to explore the following articles on ESAB University: