Welding gauge FDW-1
Brand :
NIIGATASEIKI
Caution
Product Description
The depth and length of the undercut can be measured simply, quickly, and accurately with the weld gauge.
[Features]
· A dedicated dial gauge type for measuring undercut depth.
· High-precision measurements can be made using the dial gauge.
· Allows stable measurement thanks to three-point support.
[Applications]
· For weld undercut measurement only.
What is welding gauge
Welding gauge is used to measure and check size of welded part throat
thickness required strength split that may casue damage irregularity of
under-cut and overlap etc.
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 |