From Defects to Perfection Tackling Weld Flaws in SMAW Through Prevention and Control.pptx

RESEARCH PROPOSAL

1. Topic Defense in Practical Research I Proponents: RETANIA, JEROME P ANCERO, JHAN HARVY R. AMPUAN, ABDUL MOIYD MACALAWI TIBALAN, ARJAY PANGANIBAN PADAYAO, MELLYSA BUNGAL Research Adviser: Ms. Melanie C. Dubiao , LPT Practical Research I

2. 1 Research Topic Practical Research I

3. Research Topic From Defects to Perfection: Tackling Weld Flaws in SMAW Through Prevention and Control

4. 2 Rationale Practical Research I

5. Rationale Background Information The Shielded Metal Arc Welding (SMAW) process, commonly known as stick welding, is one of the most widely used welding methods across industries due to its versatility, cost-effectiveness, and simplicity. However, like any welding technique, SMAW is prone to various defects that can compromise the quality and integrity of welded joints.

6. Rationale Background Information These defects may include porosity, slag inclusions, cracks, incomplete fusion, and underfill, all of which can negatively affect the mechanical properties and appearance of the weld. To ensure that SMAW is applied effectively, it is crucial to identify the causes of these defects, understand their potential impacts, and implement appropriate prevention and control measures. Below is a detailed exploration of the causes of common defects in SMAW and the methods to address them, supported by relevant sources.

7. Rationale Research Gap Although contamination is recognized as a factor that can compromise weld quality, there is a lack of in depth research on the specific types of contaminants such as oils, dust, and moisture that have the most significant impact on various welding materials. Furthermore, additional research is needed to explore the long-term effects of repeated exposure to these contaminants and how they interact with different electrode coatings.

8. Rationale Research Objectives To study the defects and their causes, preventions and to control

9. Rationale Research Rationale Welding is a crucial process in numerous industries, where the integrity and reliability of welded joints are paramount for safety and performance. However, contamination, in the form of oils, dust, moisture, or other foreign substances, is one of the primary causes of weld defects.

10. Rationale Research Rationale Contaminants can lead to issues such as porosity, cracking, and reduced weld strength, which directly affect the quality and longevity of welded structures. Despite the significance of contamination, there is limited research that specifically examines the types of contaminants that most severely impact weld quality, particularly in relation to different welding materials and electrode coatings.

11. 3 Methodology Practical Research I

12. Research Design Phenomenology seeks to capture the essence of human experiences, particularly how individuals perceive and make sense of those experiences. For this research, understanding how welders experience contamination (whether through oils, moisture, or dust) and its impact on their work is crucial. Since contamination is often not immediately visible but has a significant impact on weld quality, phenomenological research allows for an in-depth exploration of welders’ personal experiences, frustrations, and strategies for dealing with contamination.

13. Sample SHS/JHS SMAW STUDENTS SY 2024 - 2025 Bulihan Integrated National Highschool

14. References Kobelco (2015) Weld Imperfections and Preventive Measures Kobelco.co.jp Retrieve Jan 27, 2025 from, https://www.kobelco.co.jp/english/welding/events/files/2015_KOBELCO_Defect.pdf

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