If a welded joint lacks sufficient strength and fails under design load, which process requirement was most likely overlooked?
Correct edge preparation before welding
Weld strength depends on the filler metal fusing fully with the base metal through the full thickness of the joint.
Correct edge preparation, such as beveling and setting the right root gap, lets the weld penetrate to the root and creates a full cross-section of sound metal.
If edge preparation is skipped, penetration is shallow, the joint has less effective throat, and it fails under design load.
Post-weld grinding, centre-line marking and nozzle size affect finish or convenience, not the fundamental load-carrying fusion.
Hence, the answer is Correct edge preparation before welding.
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Important Questions from Welding
To weld metals together, high temperature is required. Such a high temperature is obtained by burning:
Which one of the following is not classified as a fusion welding process?
The material used for coating the electrode is called
When attaching a High-Speed Steel (HSS) cutting insert to a carbon steel tool holder, which joining technique is commonly used to ensure a strong bond without adversely affecting the heat treatment of the HSS?
- What is the primary action of the electrodes during resistance seam welding?
