SMAW Repair Grinderman

Core Responsibilities

Precision Defect Removal: Use pneumatic or electrical grinders to remove weld defects (porosity, slag, cracks) identified and marked by NDT (Ultrasonic/Radiographic) teams.

Cavity Preparation: Create smooth, boat-shaped grooves for repair welding to ensure the SMAW Repair Welder has proper access for 100% penetration and fusion.

Wall Thickness Monitoring: Ensure grinding does not exceed the Minimum Wall Thickness specified by API 5L or the project-specific ITP (Inspection & Test Plan).

Intermediate Cleaning: Perform inter-pass cleaning/grinding during multi-pass repair welding to remove slag and prevent inclusions. 

Technical Skill Set

Equipment Mastery: Expert operation of heavy-duty angle grinders, die grinders, and pneumatic chipping tools. Familiarity with Air Carbon Arc Gouging (ACAG) is a significant advantage.

NDT Marking Literacy: Ability to interpret NDT markings (depth and location) on the pipe surface to ensure the correct defect is removed.

Measurement Tools: Proficient use of ultrasonic thickness (UT) gauges and bridge-cam gauges to verify remaining wall thickness and weld profiles.

Abrasive Knowledge: Selection of the correct grinding wheels/discs for high-strength API steels (X65 to X80)

Key Qualifications

Education: High school or ITI (Fitter/Mechanical) trade certificate.

Experience: 3-7 years of experience in an LSAW, HSAW, or heavy fabrication mill. Experience in Repair Stations is mandatory.

Industry Background: Candidates from similar industries are highly valued for their familiarity with Third-Party Inspection (TPI) standards. 

Preferred Attributes 

Awareness of standards regarding the maximum allowable depth of grinding and the mandatory use of NDT after defect removal.

Strict adherence to PPE (full face shields, respiratory masks, and ear protection) and vibration safety protocols.

Understanding that over-grinding can lead to the rejection of an entire pipe. 

Employer-Specific Expectations

Focus on smooth blending of ground areas to prevent stress concentrators in the pipe.

High-efficiency performance under production pressure while maintaining the Zero-Defect quality required for export.