Responsibility of welding inspector

welding inspector

 Duties of Welding Inspector-Responsibility of welding inspector Visual inspection at any point during welding,

A detailed inspection may be required, especially for the root and cap. British Standard 5289:

1976 gives guidance on tools and responsibilities, along with diagrams of specific faults.

At this point the inspector should a) inspect, identify, and perhaps record (measure) the characteristics of the weld.

b) decide whether the weld is acceptable about the particular levels that are permitted;

Defect levels can be 'in-house' or a national code of practice.

When the defect size exceeds the permissible level, the concession should be applied to either

For (from a competent person), or weld rejected.

Visual inspection aids

Lighting: Good lighting is essential.

Inspection lens: magnification should not exceed 2 - 2.5 diameters. if higher

Using a binocular microscope requires magnification.

Optical viewing may gradually evolve from vision to the use of a hand torch and mirror.

In addition to a magnifier and light source.

To gain access, there are remote detection units available which must have the following:

Property. Responsibility of welding inspector 

a) large field of vision

b) freedom from distortion of the image

c) Precise preservation of color values

d) adequacy of illumination

Code of Practice

The Code of Practice for an Inspection Department should take the form outlined below. this is

appreciated that full implementation of the code would be extremely costly and therefore it could be

Required to reduce the amount of inspection to less than what is theoretically necessary.

 

The Duties of Welding Inspector

a) All applicable documents

b) workmanship standard

c) all stages of good workshop practice

d) Instruments and Measuring Instruments

inspection before welding

Before assembly:

Check * All applicable documents.

 * The quality plan is authorized and endorsed with signature, date, and company seal.

 * Application standard is up to date with the latest version, revision, or revision.

 * Pictures are clear, issue numbers are marked and the latest revision is used.

* Welding process sheets (specifications) are available, approved, and are

 employed in production.

* Welder qualifications are verified with the extent of identification and approval and that

Only approved welders are employed in the production as required.

* There are calibration certificate, material certificate (mill sheet), and consumer certificate

 Available and valid.

 * Identity of original material is verified against documentation and markings.

10

10

 * Material composition, type, and position.

* Correct methods are adopted for cutting and machining.

* Identification of welding consumables such as an electrode, filler wire, flux, shielding, and backing gases, and any special requirements (such as drying) are met.

 *Plant and equipment are in a safe condition and adequate for work.

* Security permit

Available and valid.

after assembly

*Check dimensions, tolerances, preparation, fit-up, and alignment are as per

 Accepted drawings and standards.

 * Type of tack weld, bridging piece, clamping, and backing - if any users are correct.

 *Cleanliness of work area is maintained.

 * Preheat as per the procedure.

Note Good inspection before welding can eliminate conditions that lead to the formation of

Defects.

Inspection during welding

Check * The welding process must be supervised.

 * Preheat and interpass temperature must be monitored.

 * Interpass cleaning - chipping, grinding, gouging, should be monitored.

 * Root and subsequent running sequence.

 * Essential variables like current, voltage, travel speed should be monitored.

 * Filler metals, fluxes, and shielding gases are correct.

 * Welding The welding process is in compliance with the sheet and application standard.

post welding inspection

Check * Visual inspection is to be done to ascertain the acceptability of the presence of welds.

 * Dimensional accuracy to be ascertained.

 * In line with the requirements of drawings and standards.

*NDT has done and reports assessed.

 * Assess defects as an application for repair, or concession.

 * Perform any necessary repairs.

 *Distortion control

Repairs

 * Repair procedure and welding code must be authorized.

 * The defect area should be positively and clearly marked.

 * Check when partially deleted and completely removed (view and ndt).

 *Re-welding should be supervised.

 * Re-inspect the complete repair.

Combine all documents and reports. Pass the document package to the higher authority for final

Inspection, approval, and storage.

Welding Inspector Responsibilities

 Ensure compliance with standards or codes.

 Make sure the workmanship.

 Ensure welding criteria by 'policing' work and documentation.

Property- Honesty, and integrity.

 Literacy.

 Health - Physical and vision.

Duty-To observe.  Solution.  identification