Course Overview:
This program is aimed for participants who want to broaden their knowledge on welding practices in structural steel such as symbols and weldability, and the ability to apply specific criteria on how to conduct welds.
Other elements embedded in this course include engineering basics such as Interpass temperature, preheating and controlling heat affected zones and post weld heat treatment as well as quality control measures for welding.
The Code covered includes the AWS D 1.1 and other interpretations of welding codes & standards.
The participants will also have knowledge of the elements of welding inspection such as acceptance criteria and some Non Destructive Testing (NDT) such as visual inspection PT, MT, RT and UT. This program suit well engineers, quality assurance, and inspection officers in oil & gas, chemical and manufacturing industries.
Course Objectives:
- To give participants an overview of common welding processes and their relative merits and demerits
- To understand the weldability criteria for common structural metals
- To understand common welding symbols
- Learn the purpose of welding qualifications and how to carry out these qualifications optimally and economically
- Know the nature and effects of the weld thermal cycle
- Preheat and interpass temperature control, the heat-affected zone (HAZ)
- Post-weld heat treatment, heat treatment techniques
- To explore issues relating to quality assurance in welding including non-destructive testing
- To provide an understanding of the significance and use of welding codes and standards
- Learn how to interpret, understand and comply with
- AWS D 1.1 and other welding codes and standards
- How to carry out inspection of welded structures-acceptance Criteria
Who Should Attend?
This course is specifically suited to practicing engineers, consultants, contractors, and those engaged in the civil, structural and manufacturing of plant structures in the oil and gas, chemical and process industries. This course will be highly beneficial for Welding engineers, quality assurance personnel, third party inspectors, shop inspectors, QA/QC personnel, and inspection agencies.
Course Outlines:
- Welding Processes
- Introduction to common welding processes: Shielded metal arc welding( SMAW), Gas metal arc welding (GMAW), Gas tungsten arc welding (GTAW)
- Submerged-arc welding (SAW), Narrow gap welding
- Common requirements for structural welded connections: Joint configuration and details—fillet welded joints, lap joints, Understanding weld symbols, Welding consumables, and electrode requirements, The solidified weld metal, The heat-affected zone (HAZ), Preheat and interpass temperature control, Post weld heat treatment
- Base metal specifications: Constructional steels, Low and high alloy steels
- Quenched and tempered steels, Selection of steels: strength, toughness, weldability, Other metals used in structural engineering
- The metallurgy of welding: Regions of the weld fusion, Heat affected zone
- Temperature gradients and microstructure, Weldability of steels, C-Mn constructional steels, Hydrogen induced cracking, lamellar tearing
- Carrying out procedure and performance qualifications: Per AWS D 1.1 Testing and inspection of welds
- NDT procedures for visual, PT & MT, RT, and UT
- Dimensional tolerance of welded structural members
- Level of imperfections
- Codes and standards in welding
- Case studies