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  2. List of welding codes - Wikipedia

    en.wikipedia.org/wiki/List_of_welding_codes

    Welding and allied processes — Classification of geometric imperfections in metallic materials — Part 1: Fusion welding ISO 6520-2: Welding and allied processes — Classification of geometric imperfections in metallic materials — Part 2: Welding with pressure ISO 6947: Welds. Working positions. Definitions of angles of slope and rotation ...

  3. Symbols and conventions used in welding documentation

    en.wikipedia.org/wiki/Symbols_and_conventions...

    The symbolic representation of a V weld of chamfered plates in a technical drawing. The symbols and conventions used in welding documentation are specified in national and international standards such as ISO 2553 Welded, brazed and soldered joints -- Symbolic representation on drawings and ISO 4063 Welding and allied processes -- Nomenclature of processes and reference numbers.

  4. Improvised explosive device - Wikipedia

    en.wikipedia.org/wiki/Improvised_explosive_device

    An IED has five components: a switch (activator), an initiator (fuse), container (body), charge (explosive), and a power source (battery). An IED designed for use against armoured targets such as personnel carriers or tanks will be designed for armour penetration, by using a shaped charge that creates an explosively formed penetrator. IEDs are ...

  5. Welding Procedure Specification - Wikipedia

    en.wikipedia.org/wiki/Welding_Procedure...

    The AWS defines welding PQR as a record of welding variables used to produce an acceptable test weldment and the results of tests conducted on the weldment to qualify a Welding Procedure Specification. For steel construction (civil engineering structures) AWS D1.1 is a widely used standard.

  6. Oxy-fuel welding and cutting - Wikipedia

    en.wikipedia.org/wiki/Oxy-fuel_welding_and_cutting

    The amount of heat applied to the metal is a function of the welding tip size, the speed of travel, and the welding position. The flame size is determined by the welding tip size. The proper tip size is determined by the metal thickness and the joint design. Welding gas pressures using oxy-acetylene are set in accordance with the manufacturer's ...

  7. Welder certification - Wikipedia

    en.wikipedia.org/wiki/Welder_certification

    The ASME code is typically used for pressure vessel and pressure piping applications, and CSA Standards are used for structural, general manufacturing and non-pressure applications. There are 3 major CSA Standards to which welders may be qualified: CSA W47.1 [ 4 ] for steels (including stainless steels), CSA W47.2 [ 5 ] for aluminum, and CSA ...

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