WELDING INSPECTOR RESPONSIBILITIES

 

RESPONSIBILITIES OF WELDING INSPECTOR

GENERAL

·         Welding inspector is assist with Quality Control department or welding department in the industries.

·         He ensures the items or product that are welded in the company will meet the specified requirements and suit for the required application.

·         Welding inspector need to have the ability to understand the Quality procedures and also sound knowledge in welding technology.

·         He should be aware of the weld gap gauge and misalignment gauge.

·         Where access is restricted to direct visual inspection use of mirror boroscope.

STAGES OF INSPECTION

A.   BEFORE WELDING MATERIAL 

Material should comply the drawing specifications and WPS. 

Test certificates should have traceability with material. 

Material should not damage.

   

WPS 

WPS should be approved (if required) from client before welding start.

WELDING EQUIPMENT
All Welding equipment’s should be calibrated from NABL laboratory.

 

WELDER QUALIFICATION
Welder should be qualified for welding as per WPS and should have valid welder qualification certificate.

 

WELD PREPARATION

Weld preparation should be as per drawing and WPS. 

WELD CONSUMABLES
Consumables should as per WPS mentioned and stored as per given procedure of consumable handling.

JOINT FIT-UP
Weld fit-up joint preparation should check by weld gauge and refer with WPS.

              

PRE-HEAT

Preheat the joint at proper temperature as per WPS (if required). 

B.   IN-PROCESS WELDING

WELDING PROCESS
Welding method that was qualified for the job should as per WPS.

INTER-PASS TEMPERATURE

During welding maximum temperature should be as per WPS. 

WELDING PARAMETERS
Welding parameters like current, voltage, welding angle, travel speed should be as per WPS.

ROOT RUN
It should be visually found within acceptable limits.

              

 

BACK-GOUGING
If WPS mentioned weld joint with back gouging then should have to done and if not mentioned then check the penetration and then decide for back gouging.

 

C.   FINISHED WELDING

WELD APPEARANCE
All weld surface should be suitable for all NDT methods. 

              

DIMENSIONS
Welding dimensions like weld bid height, bid angle and other parameters as per standards should check.

              

NDT
Ensure all NDT are complete and reports are available for records

WELD REPAIRS
Weld repair should have qualified procedure and work should as per procedure. 

PWHT
Post weld heat treatment should be done if required as per WPS and PWHT procedure.

               

DOCUMENTS
All related documents as per ITP and processes should maintain time to time.