When Do You Need Non-Destructive Testing Methods?

When Do You Need Non-Destructive Testing Methods?

There are five basic NDT (non-destructive testing) methods used to detect weld defects; Visual Inspection (VT) Magnetic Particle Testing (MPT) Dye Penetrant Liquid Testing (DPI) Radiographic Testing (RT) Ultrasonic Testing (UT). UT and RT can detect both external and...
Gas Tungsten Arc Welding best practice

Gas Tungsten Arc Welding best practice

Gas tungsten arc welding is a process where a non-consumable tungsten electrode is used to produce the weld. Welders can encounter various issues in the GTAW process so we have compiled our best practice advice for gas tungsten arc welding in an effort to prevent or...
Basics of distortion in welding

Basics of distortion in welding

How does distortion occur? Welding usually involves heating of the materials at the joint to fuse them together. This heat creates expansion and contraction. If the heating and cooling is uneven, distortion can occur. This distortion comes from residual stress. There...
Best practice for GTAW (TIG welding) of pipe joints

Best practice for GTAW (TIG welding) of pipe joints

At Technoweld, we are often approached about the best practice for welding, in particular, GTAW (TIG welding) of a pipe. We’ve compiled some best practices around pipe joints. This blog is important for those completing the welding tickets as it is specifically...
Gas Metal Arc Welding – Power Circuit

Gas Metal Arc Welding – Power Circuit

In part 3 of the Gas Metal Arc Welding (GMAW) blog, we will discuss the power circuit. Often people forget the basics when setting up gas metal arc welding machines, it’s these basics that create a lot of frustration with welders. Welding is complex but it doesn’t...