Visual Inspectiong

Module 1.  Visual Inspection of Welding

Module 2.  Nondestructive Examination (NDE) of Welds and Welding

Module 1. Visual Inspection of Welding

1.0 Aims of Module #1

1.1 Weldment and Joint Design

1.2 Materials of Construction

1.3 Procedures of Welding

1.4 Manner of Weld Application

1.5 Inspection Program

1.6 Inspection Program–Phase A

Phase A–initial Review

1. Review purchase order, all codes and drawings

2. Develop all necessary inspection plans

3. Check welding procedures; welder status

4. Establish inspection documentation system

5. Publish non–conforming product ID system

6. Create a corrective action program

7. Inspection Program–Phase B

Phase B–Pre–Welding Checks

1. Check suitability, condition of welding equipment

2. Check conformance of base and filler materials

3. Check the positioning of members and of joints

4. Check joint preparation, fit–up, cleanliness

S. Check adequacy of alignment maintenance

6. Check preheat (or initial) temperature

7. Inspection Program–Phase C

Phase C–In–process Inspections

1. Check compliance with WPS provisions

2. Check quality, placement of key weld passes

3. Check weld bead sequencing and placement

4. Check interpass temperature and cleaning

5. Check adequacy of backgouging

6. Monitor any specified in–process NDE

7. Inspection Program–Phase D

Phase D–Postwelding Activities

1. Check finished weld appearance, soundness

2. Check weld sizes and dimensions

3. Check dimensional accuracy of weldment

4. Carry out or monitor/evaluate specified NDE

5. Monitor any PWHT or other postweld work

6. Finalize and collate inspection documentation

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Module 2. Nondestructive Examination (NDE) of Welds and Welding

2.0  Aims of Module #2

2.1  Introduction to Module #2

2.2  Liquid Penetrant Examination (PT)

2.3  Magnetic Particle Examination (MT)

2.4  Radiographic Examination (RT)

2.5  Ultrasonic Examination (UT)

2.6  Summary of Weld NDE Methods

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Module 3. Weld Discontinuities

3.0  Aims of Module #3

3.1  Introduction to Module #3

3.2  Cracks and Cracking

3.3  Incomplete Fusion

3.4  Incomplete Joint Penetration

3.5  Solid Inclusions

3.6  Gaseous Inclusions (Porosity)

3.7  Shape Discontinuities

3.8  Miscellaneous Discontinuities

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Module 4. Welding Codes and Specifications

4.0  Aims of Module #4

4.1  Introduction to Module #4

4.2  Finding Code References (1)

4.3  Part B, Examination Book of Specifications

4.4  Part B, Discuss Appendix I and II

I. Weld procedure qualification test record

II. Welder and welding operator qualification test record

4.5  Prequalified CJP Groove Welded Joints–Appendix III

III. Prequalified complete joint penetration groove welded joints

4.6  Weld/Test Criteria–Discuss Appendix V, VI, VII, and VIII

V. Weld profile acceptance chart

VI. Weld profile acceptance description

VII. Quality of weld visual requirements

VIII. Test results required, guided bends

4.7  Weld Metal–Appendix IX and Electrode Groups–Appendix X

4.8  Welder Qualification Requirements–Appendix XI

4.9  Welding Procedure Qualification–Appendix XII and XIII

4.10  Matching Filler Metals and Strengths–Appendix IV

4.11 Minimum Preheat and Interpass Temperatures–Appendix XV

4.12  Finding Code References

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Module 5.  Measurements of Welding

5.0  Aims of Module #5

5.1  Introduction to Module #5

5.2  Inspection Instruments and Gauges

5.3  Undercut Gauge

5.4  Machinist's Rule

5.5  Micrometer

5.6  Dial Caliper

5.7  Measurement Conversions

5.8  Magnifier

5.9  Linear Measuring Instrument Comparisons

5.10  Special Welding Gauges

5.11  Welding Math

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