Welding gauge WGU-7M/8M

Caution
Product Description
Welding gauge that enables dimension measurement of weld overlay, fillet, leg length, etc. and even undercut depth measurement all in one.
[Features]
· Supports measurements when doing various welding work.
· An extremely easy-to-read structure where the graduations can be read on the same plane.
· Undercut depth measurement, bevel angle, and opening angle measurement is possible.
· Enables discrepancy unevenness measurement, fillet leg length measurement, fillet neck thickness measurement, gap measurement, plate thickness measurement, etc.
· Very convenient for general welding work and welding work on steel frames and assemblies for construction, shipbuilding and bridges, etc.
[Applications]
· Used to measure the size, angle, etc. of weld overlay and fillet.
What is welding gauge
thickness required strength split that may casue damage irregularity of
under-cut and overlap etc.
Terms of welding
- Throat thickness
The thickness from welded portion at triangular cross-section when welding two faces at 90°. - Arc strike
The arc that occurred to parts other than welding base metal when working on arc welding. - Pit
Blow hole on surface due to poor welding. - Bead
A belt shape rises after working on welding. - Under-Cut
The irregular groove at the toe of a rod in the welding base metal. - Overlap
The heap results from miss welding of the base metal.
Instructions for inspection
| Inspection items | Picture | Instruction for measuring | ||
Reasons of welding crack | 1. | Surface crack on bead | ![]() | Visual inspectin in priciple |
Inspection of exterior and shape on welding bead | 2. | Pit on welding bead surface | ![]() | Visual inspection |
| 3. | Unevenness on welding bead surface | ![]() | ![]() | |
| 4. | Under-cut | ![]() | ![]() | |
| 5. | Overlap | ![]() | Visual inspection | |
| 6. | Size of corner buds (Lack of throat thickness • foot length of fillet) | ![]() | ![]() | |
| 7. | Excessive buds from groove welding | ![]() | ![]() | |
Others | 8. | Arc strike | ![]() | Visual inspection |











