by Graham Fry | Nov 13, 2019 | Technoweld
The Most Common Welding Defects: Causes and Remedies A weld flaw is any indication on a weld that can compromise the quality of the weld. A weld flaw can be accepted or rejected depending on three factors: type, size and location of the flaw/discontinuity. All welds...
by Graham Fry | Oct 21, 2019 | Technoweld
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...
by Graham Fry | Sep 18, 2019 | Technoweld
Gas Tungsten Arc Welding (GTAW also referred to as TIG) uses a non-consumable tungsten electrode to create an arc between the electrode and the parent material. This arc creates a molten pool to which a filler wire is added. The success of TIG welding depends on a...
by Graham Fry | Aug 30, 2019 | Technoweld
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...
by Graham Fry | Jul 30, 2019 | Technoweld
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...
by Graham Fry | Jul 17, 2019 | Technoweld
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...
