Core Responsibilities
- Continuous Seam Closing: Operate the automated continuous tack welding machine to close the longitudinal seam of O-shaped pipes.
- Alignment Control: Monitor and adjust the gap and offset (Hi-Lo) of the seam in real-time to ensure it meets specified tolerances.
- Welding Parameter Management: Set and maintain GMAW parameters (Wire Feed Speed, Voltage, Gas Flow, and Travel Speed) as per the approved Welding Procedure Specification (WPS).
- Seam Tracking: Utilize laser-tracking or mechanical guidance systems to ensure the tack weld is perfectly centered on the seam.
- Defect Prevention: Ensure the tack weld is sound, continuous, and free of cracks, as it must withstand the mechanical stresses of the internal SAW pass.
- Consumable Management: Manage the supply of shielding gas
Technical Skill Set
- Equipment Mastery: Proficiency in operating automated tack-welding units from manufacturers like SMS Group, Haeusler, or Lincoln Electric.
- GMAW/MAG Expertise: Deep understanding of the Gas Metal Arc Welding process, specifically for heavy-wall thickness (up to 40mm+).
- Laser & Sensor Integration: Experience with automated seam-tracking sensors and HMI-based control systems.
- Measurement Tools: Use of V-Weld gauges and callipers to check weld reinforcement and edge alignment.
Key Qualifications
- Education: ITI (Welder) or a Diploma in Mechanical Engineering.
- Experience: 3-8 years of experience in automated welding, specifically in an LSAW, HSAW, or heavy fabrication environment.
- Certification: Valid Welder Performance Qualification (WPQ) as per ASME Section IX or API 5L is highly preferred.
- Industry Background: Candidates from similar industries are valued for their knowledge of Zero-Defect export production.
Preferred Attributes (Aramco & Global Standards)
- Understanding that the tack weld will be re-melted by the SAW process and must not leave any residual slag or contamination.
- Knowledge of flash protection, fume extraction systems, and high-voltage electrical safety.
Employer-Specific Context
- Strict focus on minimizing Hi-Lo (Edge Misalignment) at the tacking stage to ensure 100% UT (Ultrasonic Testing) clearance later.
- Integration with Industry 4.0 platforms where tack welding parameters for every pipe are logged to the SAP
- Focus on high-speed Throughput (meters per minute) while maintaining the structural integrity needed to hold the pipe together during transport to SAW stations.
