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BS EN ISO 18278-1-2004
Widerstandsschweissen. Schweisseignung. Bewerten der Schweisseignung zum Widerstandspunkt-,Rollennaht-und Buckelschweissen von metallischen Werkstoffen Resistance welding Weldability Part 1:Assessment of weldability for resistance spot,seam and projection welding of metallic materials Soudage par resistance. Soudabilite. Evaluation de la soudabilite pour le soudage par resistance par points,a la molette et par bossages des materiaux metalliques
适用范围：SO 18278-1:2004 recommends procedures for determining the generic weldability for resistance spot, seam and projection welding of metallic materials.This procedure is applicable for the assessment of the weldability of uncoated/coated steels, stainless steels and non-ferrous alloys such as aluminium, titanium, magnesium and nickel and their alloys of single thickness lower than or equal to 5 mm.The weldability of metallic materials in resistance welding is defined in terms of:the ability to make the weld in the first place;the ability to continue making welds;the ability of the weld to withstand the imposed service stresses.The procedures recommended in ISO 18278-1:2004 can be used to:compare the weldability of different metallic materials;compare the welding response of particular welding equipment and allow comparisons between different equipment and determine the influence of the static/dynamic properties of different welding equipment;determine the weldability of a material when any welding configuration is changed e.g. electrode material and/or shape, water cooling requirements etc.;investigate the effect of welding parameters such as welding current, weld time, electrode force or complex welding schedules including pulse welding, current stepping etc. on weldability.
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