S9074-AQ-GIB-010/248 Rev 1
3-1.10 INSPECTOR. An inspector is any contractor, Naval shipyard and other Government agency employee, or ABS Surveyor qualified as required by this document to accept or reject materials or workmanship on the basis of specified test results. 3-1.11 OUTSIDE DIAMETER (OD). OD refers to the outside diameter of a cylindrical product and usually relates to an outer diameter nominal dimension; OD can also mean the outer surface of a joint in a cylindrical product if the context is such. 3-1.12 PERFORMANCE QUALIFICATION. Performance qualification is the action by which welders and welding operators (and brazers and brazing operators) are evaluated by nondestructive and destructive methods for their demonstrated ability to produce welds (and brazed joints) that meet the requirements of this specification. Also included are requirements for qualification record keeping. 3-1.13 POST WELD HEAT TREATMENT (PWHT). PWHT refers to any heat treatment subsequent to welding, except for post-weld soaking treatments for hydrogen evolution that are specified by the fabrication document. 3-1.14 PROCEDURE. A procedure is a written fabrication instruction that contains all the applicable essential elements listed in this document. 3-1.15 PROCEDURE QUALIFICATION. Procedure qualification is the action by which test assemblies are prepared in accordance with a proposed procedure and evaluated by destructive or nondestructive tests, or both. Also included are requirements for qualification record keeping. 3-1.16 QUALIFIED. Qualified means that the item under consideration has been approved as required by this document. 3-1.17 STRAW (COLOR). Straw is a color occurring on titanium welds from slight contamination whose hue ranges from light gold through brass. 3-2 TERMS RELATED TO WELDING. 3-2.1 BUILD-UP. Build-up is a surfacing variation in which weld metal, usually of similar or matching composition, is deposited to restore base material or weld surface dimensions. 3-2.2 BUTTERING. Buttering is a surfacing variation that deposits weld metal on one or more surfaces to provide metallurgically compatible weld metal for the subsequent completion of the weld. 3-2.3 CLADDING. Cladding is a surfacing variation that deposits or applies surfacing materials, usually to improve corrosion or heat resistance. 3-2.4 DISSIMILAR METAL WELDS. Dissimilar metal welds are welds involving two metals that differ sufficiently in metallurgical and physical properties to require special consideration in procedure qualification and inspection (see Chapter 4 for exceptions). 3-2.5 GOVERNMENT INSPECTOR. A Government inspector is a Government official charged with the responsibility for ensuring that the materials, processes, fabrication techniques, inspections, tests, and testing personnel meet specification and contractual requirements. In this regard, he or she shall be the authorized representative, or the following: a. When delegated by the authorized representative, the DCMA inspector. b. For forces afloat: The Squadron Commander or their delegated representative. c For Naval repair facilities: The commanding officer or their delegated representative. 3-2.6 HARDFACING. Hardfacing refers to a surfacing variation in which surfacing metal is deposited to reduce wear. 3-2.7 INSTANTANEOUS POWER OR ENERGY. As used for waveform controlled welding, instantaneous power or energy is the determination of power or energy using the product of current and voltage measurements made at rapid intervals (see 4-4.1.13.2.b), which capture brief changes in the welding waveform.
3-2
Made with FlippingBook - Share PDF online