Arc Machines 307 - Manual (Page 183)

Arc Machines, Inc. Model 307 Orbital Tube Welder Training
Document No. 740096 Chapter 19. Appendix Page 3.
Rev. A
Appendix 3. Welding Operator Qualification to ASME Section IX of the
BPVC
Several orbital welding standards including ASME BPE 2002 and SEMI require
qualification of welding operators to Section IX of the ASME Boiler and
Pressure Vessel Code. The following steps are required for qualification:
A. A Q.A. manual and program must be in effect.
B. A set of general weld standards must exist.
C. Qualified procedures must be completed and documented.
1. Test coupons that satisfy your visual criteria and/or those out-
lined in ANSI/ASME B31.1 Code for Pressure Piping or B31.3
Process Piping (or other applicable code such as ASME BPE-2002)
must be generated and sent to a qualified test lab for destructive
testing (bends and tensiles).
2. Bend tests are predetermined over a certain sized radius. Two
each root, and face bends must be performed. The weld zone area
(heat affected zone - HAZ) must be carefully inspected for
cracking.
3. Tensile testing must be done to examine for the following:
a. PSI at which the specimen breaks must equal or exceed the
minimum specified tensile stress of the materials being joined.
Forms for the Weld Procedure Specification (QW-482)* and
the Procedure Qualification Record (QW-483)* must be filled
out.
b. Should the specimen break on the weld, as opposed to
being adjacent, (but still meet the base criteria in PSI) the sample
is good.
c. The welder performing the test and creating the weld
samples has now become certified (Form QW-484B for Welding
Operator Performance Qualification (WOPQ)* or equivalent
must be filled out.)
4. Welder Certification: Each welder must submit 6 inches of linear
weld for certification, or multiple coupons, but no more than 4.
5. By ASME Code you have now proven that the process and
techniques used meet the ASME criteria for procedure
qualification.
*Forms E00006, E00007,and E0008B may be obtained from the Order Dept., ASME, 22 Law
Drive, Box 2300, Fairfield, NJ 07007-2300.