2. Boutet Proces, Du-Wel Steel Products Co., 360
Scott Street, Elk Grove Village, IL 60007,
Telephone: (312) 439-3630
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Use only qualified procedures and personnel. Procedures and personnel
previously qualified in accordance with this specification shall not
require requalification, provided qualifications have not lapsed and
qualification records are available.
1.3.1
The Contractor shall notify the Contracting Officer in writing one week
prior to making qualification welds. Operators shall qualify by welding
one acceptable rail joint in accordance with a qualified procedure. This
qualification may be accomplished either prior to production welding or on
the first joints to be welded at the work site. If welding operator
qualification is conducted at the work site, perform no further welding
until the qualification weldments have been accepted by visual inspection
and ultrasonic tests. Written approval of the acceptability of the welded
joint shall be obtained from the Contracting Officer prior to continuing
with welding. Welding operator's qualification shall be effective from the
test date and will remain in effect for a period of one year.
1.3.2
Acceptable Welds
Shall be those welds that meet the visual inspection and ultrasonic test
requirements of MIL-STD-1699. Welds selected for testing for Brinell
Hardness shall meet the requirements of ASTM E 10 and paragraph entitled
"Hardness Test."
1.3.3
Procedure Qualification
1.3.3.1
Written Procedure
Prepare for the welding process to be used. The procedure shall include
the information specified in paragraph entitled "Submittals," as well as
any particulars of the process deemed pertinent to the successful
completion of the welds.
1.3.3.2
Manufacturer's Procedure
No separate qualification is necessary for various rail weights, although
in order to be qualified for a specific rail weight or cross section, the
procedure shall include fit-up requirements and other features unique to
the rail weight or cross section of the rails to be welded.
1.3.3.3
Welding Procedure Qualification
a.
Provide welding procedure qualification records acceptable to the
Contracting Officer as proof of previous qualification under this
specification. The records shall include the information
specified in paragraph entitled "Submittals," as well as any
particulars of the process deemed pertinent to the successful
completion of the welds.
b.
Welding procedure not previously qualified under this
specification may be qualified by providing four consecutive
acceptable welded rail joints. An acceptable weld is defined as a
SECTION 05652N
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