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  2. List of welding codes - Wikipedia

    en.wikipedia.org/wiki/List_of_welding_codes

    Welding terms and symbols. European arc welding symbols in chart form BS 2633: Specification for Class I arc welding of ferritic steel pipework for carrying fluids BS 2971: Specification for class II arc welding of carbon steel pipework for carrying fluids BS 4515-1: Specification for welding of steel pipelines on land and offshore - Part 1 ...

  3. Welding Procedure Specification - Wikipedia

    en.wikipedia.org/.../Welding_Procedure_Specification

    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.

  4. List of welding processes - Wikipedia

    en.wikipedia.org/wiki/List_of_welding_processes

    This is a list of welding processes, separated into their respective categories. The associated N reference numbers (second column) are specified in ISO 4063 (in the European Union published as EN ISO 4063 ). [ 1 ]

  5. Symbols and conventions used in welding documentation

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

    The location of the elements of a welding symbol when following US conventions. In the US, the component elements of the weld specification are: [2] The reference line - the body of the arrow which is the baseline for the specification. The arrow tip which goes at an angle to the reference line, pointing to the joint to be welded.

  6. Rotary friction welding - Wikipedia

    en.wikipedia.org/wiki/Rotary_friction_welding

    The results are for example not the same in welds made for the European Space Agency with a high turnover ω = 14000 rpm [61] or another example from Warsaw technical university 12000 rpm [41] and no typical very short friction time only 60 milliseconds [42] instead of using an standard parameters, in addition, in this case, ultra fine grain ...

  7. Hot gas welding - Wikipedia

    en.wikipedia.org/wiki/Hot_gas_welding

    Hand welding is a technique in which the weld rod is applied to the joint by the welder directly. This is also referenced as free-hand welding or fan welding. [1] The hot gas torch is maneuvered in one hand to heat both the weld rod and joint surfaces in a pendulum manner in quick succession.

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