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BOEING EVERETT SECTION 34 17 16 <br /> NEW RAIL SPUR WELDING OF RAIL <br /> WORK ORDER 10305 <br /> 7. Pressure Weld Samplea: Befare beginning of production welding, siz test welda ahell be <br /> made in accordance to 1.04B using the welding machine and the procedurea proposed in <br /> the manufacturers inatrudione. <br /> B. Proposed Iocation for flash•butt welding plant including methods ot lransporting malerials <br /> and equipment to the site, types and laations of environmental controls end duretion of <br /> welding operetions. <br /> C. Thertnite Welds. Submit the follawing: <br /> 1. Prior to thertnite welding, eubmit a detailed speciTicalion of the proposed melhod and <br /> exact procedure to Boeing Conetruction Maneger. The method and selected procedure <br /> specified shall comply with that of the weld kit manuladurer and ahell include the neme of <br /> the weld kit manufacturer. <br /> 1.4 OUALITY ASSURANCE <br /> A. Rail Straighlnesa: The Contractor ehail check rail for end slraightness before welding. Examine <br /> both ends and tops o( rails using a 3 foot metal straightedge. Deviations trom atraiyht shall be <br /> measured with a melal taper geuge. Rails which ere at or exceed the toleranc��s in AREMA <br /> Chapter 4, Part 2, "Specificationa for Sleel Rails", Seclions 13.3 lhrough 13.5, shall not be <br /> welded. <br /> B. Fabrication of�ualification Sample Pressure Welds and Thermite Welds. <br /> 1. Produce tF�iae sample pressure welds of each combination of inetellurpy; atanderd to <br /> standard, standard lo high strength, high trength lo high strength lor testinp. <br /> 2. Produce three semple thermite welds of each combination of inetallurpy; slendard to <br /> atandard, stenderd to high sirenglh, high slrength to high strength for lesling. <br /> 3. Prepare samples by the welding crewe in accordance with the Contredors submitted, <br /> reviewed, and accepted methoda and procedures for rail welding. The supervisor of <br /> each welding crew shall be trained and certified by the manufeclurer supptying the weld <br /> kits and/or pressure welder lo peAorm rail welding. Each welding crew shell perfortn at <br /> least one of each type of the sample welds. Prior to peAorming welda In the specified <br /> work,the weids and each weldinp crew shall be qualified as specifred below. <br /> 4 When the pressure weld machine is reWmed to production after a period of <br /> malfunctioning or major repair, or when Ihe weldinp crew is replaced, eix eddilional lest <br /> welds will be required. Acceplance ot the welding machine or the new crew shall be after <br /> siz acceptable welds as ebove heve been produced. <br /> 5 Sampte pressure and thertnite welds shall be tested by en independenl laboratory and <br /> the certified lest resulls shall be submitted to Booing Constructiori Menager. Approval of <br /> lhe pressure welder, weld kit, weld specfication, and welding crews will be dependenl <br /> upon fhe sample welds satislying the test requirements in this specificalion. �ualificalion <br /> tesling of sample welds shall be as stated herem. <br /> C Laboretory Testing of �ualificalion Sample Welds - The sample welds shell be tested as <br /> follows. <br /> 1 Visuatly ezamine lhe test welds lor cracks Welds wdh surlace cracks shall be rejected. <br /> Parmd Set 34 11 18- 3 <br /> September�3. 2011 <br />