CSWIP 3.1: Part 2 – Typical Duties Of Welding Inspectors

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Duties and Responsibilities:

1) Give the three main responsibilities of a Welding Inspector:

  • Code compliance
  • Workmanship control
  • Documentation control

2) Give the main attributes, which all Welding Inspectors must possess:

  • Honesty
  • Integrity
  • Knowledge
  • Good communicator
  • Physical fitness

3) A Welding Inspector should refer to What documents and records:

Welding Inspection Personnel should:

  • be familiar with relevant standards, rules and specifications applicable to the fabrication work to be undertaken. For ex: BS EN 970 – Non-destructive examination of fusion welds – Visual examination
  • be informed about the welding procedures to be used
  • have good vision (which should be checked every 12 months)

4) Give main duties of a Welding Inspector before welding: before assembly & after assembly.

+ PreparationFamiliarisation with relevant ‘documents’…: application standard / code, dwg, quality control procedure, quality plan / inspection…

+ Welding procedure: use properly WPS & available for welder / inspector… Pls refer to: WPS understanding

+ Welder qualification: suit with WPS, cert; in valid day…

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+ Equipment: enough for welding job, good in order include cablirate…

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+ Material: certificate, dimension, condition of material

+ Consummable: correct & follow WPS, to be controlled by Procedure

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+ Weld preparation: comply with WPS/ dwg/. Free from defect, contamination…

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+ Welding equipment: good in order include cablirate…

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+ Fit up: edge preparation comply with WPS, tack weld…

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+ Pre-heat: check WPS, follow WPS to meake sure min’ temp’ to be reach.

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5) Give main duties of a Welding Inspector during welding:

  • Weather conditions: to be properly if weld at W/S or site
  • Welding Process(es): check WPS

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  • Welder: suitable to welding joint
  • Pre-heat (if required): min temp require / max temp for inter pass

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  • Welding consumables: meet with WPS, take note the control issue & handling
  • Welding Parameters: meet with WPS

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  • Root runs: should be check before fill up

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  • Inter-run dressing: follow approval process

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  • Distortion control: avoid over welding

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6) Give main duties of a Welding Inspector after welding:

  • Weld Identification: how to know who weld it?
  • Visual Inspection: follow Code / standard requirement
  • Dimensional Survey: follow DWG / CODE
  • Other NDT: check NDT finish & record if any
  • Repairs: to be complianced with Procedure
  • Pressure / Load Test:  the test to be done properly
  • Documentation: to be record for review

7) Summary:

A Welding Inspector must:

  • Observe: To observe all relevant actions related to weld quality throughout production.
  • Record: To record, or log all production inspection points relevant to quality, including a final report showing all identified imperfections
  • Compare: To compare all recorded information with the acceptance criteria and any other relevant clauses in the applied application standard

8) Other question:

a) To assess the surface of a weld for direct inspection, the distance from the surface to the eye should be a maximum of?

a. 200mm
b. ( answer ) 600mm
c. 60mm
d. 6000mm

b) What is the recommended minimum range of illumination required by BS EN 970 for inspection of a welded surface?

a. 90-125 lux
b. 150-250 lux
c. ( answer ) 350-500 lux
d. 35-50 lux

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c) Who should have access to the WPS?

a. NDT operators
b. Inspectors only
c. Welder only
d. ( answer ) Welder and Inspectors

d) Who has the responsibility of ensuring the welder is using the correct consumable during fabrication?

a. The QA department
b. Store man and the welder
c. Welding engineer
d. ( answer ) The welder and the welding inspector

e) Who has the responsibility of ensuring the welder is using the correct polarity during welding?

a. ( answer ) The welder and the welding inspector
b. Store man and the welder
c. Welding engineer
d. The QA department

f) You notice the welders are adjusting the current on the welding set, is this allowable?

a. Never
b. The welder has the final say on voltage and current
c. ( answer ) Only if the current is within the range recorded on the WPS
d. As long as the welder has approval from the welding foreman

g) Who determines what the correct weld preparation (root gap, root face, included angle) should be?

a. ( answer ) The welding engineer
b. The welding supervisor
c. The welder will decide
d. The inspector will recommend what is suitable

h) What course of action should be taken upon finding a welder using incorrect welding consumable?

a. ( answer ) Report the incident and record all relevant information
b. Allow welding to proceed if the workmanship is good
c. None if the tensile strength of the consumable is the same as the approved one
d. Change the electrode for the correct type and continue welding

k) Who should have access to the WPQRs?

a. NDT operators
b. Inspectors only
c. Welders only
d. ( answer ) Welding engineer

l) Who has the final responsibility of sentencing and accepting a weld on completion?

a. The contractor’s inspector
b. Site manager
c. The welder
d. ( answer ) The client’s inspector or certifying authority


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