MIL-STD-2219 Fusion Welding for Aerospace Applications S/S by AWS-D17.1The scope of this document is to provide minimum requirements for weld filler materials, workmanship, inspection and record requirements for fusion welding of alloys applicable to aircraft, missiles, other aerospace equipment, their parts and accessories.

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MIL-STD-2219A

w/CHANGE 1

4. GENERAL REQUIREMENTS

4.1 General requirements

The purpose of these qualification requirements is to ensure that qualified procedures are used by properly trained and qualified personnel. It shall be the responsibility of the contractor to ensure that only qualified personnel, procedures, and nondestructive test equipment are used in fabrication and inspection necessary to comply with this document. Procedures and personnel previously qualified or approved shall not require requalification provided that qualifications are appropriate for the production welding to be done and have not lapsed, and provided that qualification records are available to substantiate prior qualification or approval.

4.2 Welding procedure qualification

Prior to engaging in production welding, the welding procedure for Classes A and B shall be qualified. The pertinent welding variables shall be identified. Section 2 of AWS 82.1 should be used as a guideline in the development of the welding procedure to ensure that all pertinent variables and tolerances are included. Requalification criteria shall be determined by the cognizant engineering organization.

4.3 Welding personnel qualification

Each welder or welding operator shall be qualified in accordance with AWS D17.1 section 4 prior to performing any production welding.

4.4 Welding and auxiliary equipment

4.4.1 General

Welding equipment, such as welding machines, welding torches, regulators and filler metal feeders shall be capable of making satisfactory welds, when operated by a qualified welder or welding operator.

4.4.2 Welding apparatus capability

Where doubts about the capability of any welding apparatus to function satisfactorily exists, the equipment shall not be used until the necessary repairs, adjustments, or replacements have been made.

4.4.2.1 Furnace control equipment

Unless otherwise specified in the welding procedure documents, furnace control temperature tolerances shall be within ±50°F.