DEFSTAN 02-304(PT4)/2(2002) : 2002

TITLE PAGE
SCOPE
FOREWORD
Sponsorship
Conditions of Release
Categories of Defence Standard
Related Documents
Health and Safety
Additional Information
CONTENTS
SECTION 1. PERFORMANCE SPECIFICATION
SECTION 2. NATIONAL/INTERNATIONAL REGULATIONS
SECTION 3. MILITARY STANDARDS/REQUIREMENTS
           3.1 Preliminary Inspection and Defect Removal
           3.2 Assessment of Repairs Required
           Figure 3.1 Requirements for Blending Isolated Defects
           Figure 3.2 Profile Requirements for Repair
                      of Limited Areas by Local Grinding
           Table 3.1 Limiting Depth of Metal Removal
                      on Outboard Shafts
                      without Subsequent Welding
           3.3 Straightening of Shafts
           Table 3.2 Recommended Temperature Ranges for
                      Thermal Straightening
           3.4 Repair by Grinding and/or Machining
           3.5 Repair by Welding
           3.6 Organization Responsibility
           Figure 3.3 Excavation for Manual Weld
                      Repairs (Cross Section)
           Table 3.3 Shaft Distortion Limits for
                      Automatic Welding Process
           Table 3.4 Preheat and Interpass Temperatures
           Table 3.5 Heat Input Limits for Shaft Weld Repair
           Figure 3.4 Local Weld Repairs Under Cladding
           3.7 Thermal Spray Deposition
           3.8 Heat Treatment
           3.9 Final Inspection
           3.10 Preservation and Protection
           3.11 Repair History Document
           3.12 Electrochemical Metallization
SECTION 4. DESIGN REQUIREMENTS/GUIDANCE
SECTION 5. CORPORATE KNOWLEDGE AND EXPERIENCE
ANNEX A. RELATED DOCUMENTS
ANNEX B. ABBREVIATIONS AND DEFINITIONS
ANNEX C. PROCUREMENT CHECK LIST
ANNEX D. WELDING QUALIFICATION TESTS
           Figure D.1 Qualification Test Plate: MMA and MMIG
           Figure D.2 Qualification Test Plate: MTIG
           Figure D.3 Qualification Test Assembly:
                      Automatic Welding
           Figure D.4 Test Plate Assembled in Welding Jig
           Figure D.5 Preparation of Destructive Examination
                      Test Pieces:
                      MMA, MMIG, MTIG Qualification
           Figure D.6 Location of Hardness Traverses
           Figure D.7 Chemical Analysis Sampling of Weld Overlay
ANNEX E. SPRAY DEPOSITION QUALIFICATION TESTS
           Figure E.1 Spray Deposition Qualification Test Piece
           Figure E.2 Extraction of Test Specimens
ANNEX F. ULTRASONIC EXAMINATION OF WELDS
           AND WELD CLADDING
           Table F.1 Probe Requirements
           Figure F.1 Ultrasonic Reference Piece for Examination of
                      Qualification Test Pieces for
                      Manual Weld Repairs
                      using Matching Fillers
           Figure F.2 Ultrasonic Reference Piece for Examination of
                      Qualification Test Pieces for
                      Manual Weld Repair
                      using Dissimilar Metal Filler
           Figure F.3 Ultrasonic Reference Piece for
                      Examination of Shafts
                      Repaired with Matching Fillers
           Figure F.4 Ultrasonic Reference Piece for
                      Examination of Shafts
                      Repaired with Dissimilar Metal Filler
ALPHABETICAL INDEX

Defines the requirements for: A. Assessment of the rectification and repairs necessary to restore distorted, worn or corroded main propulsion shafts, couplings and sleeves to a serviceable condition; B. Performance of such treatment and repairs; C. Post-repair treatment and inspection. Shaft materials include carbon steel, stainless steel and non-ferrous alloys.