Q9. You notice manual metal arc electrodes, stripped of flux, are being used as filler wire for TIG welding. You would object because: It is too expensive The wire would be too thick The metal composition may be wrong The wire is too short (For answer & explanation, please click: https://www.weldingandndt.com/question-answers-on-welding-for-cswip-3-1-and-aws-cwi-exams/)
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The correct option is 3.
- 3. The metal composition may be wrong Manual Metal Arc (MMA) electrodes are designed with specific core wire compositions and flux coatings to achieve desired weld metal properties under the MMA process. When stripped of flux, the core wire's composition may not be suitable for TIG welding, which requires precise control over filler metal chemistry to match the base material and ensure proper mechanical properties, corrosion resistance, and prevent defects like cracking.
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