AnArticleincluding considerations onWeld Defectsand on the importance of investigating the reasons of their appearance, foreliminating their recurrence, was published in Issue 28 of Practical Welding Letter for December 2005. To read the article (in Section 2) click onPWL#028. An article of ours,...
1.The merits and defects ofCO 2 weldingand their reasons are introduced,and the fact that MAG welding is superior toCO 2 weldingis emphasized,such as reducing spatter during metal transfer and increasing impact toughness of weld metal ,some typical application cases such as MAG welding can be u...
In thePCB processingand welding process, the performance of the flux directly affects the quality of the welding. So what are the common welding defects of PCBA processing? How to analyze and improve the bad welding? 1. Bad condition: There are too many residues on the PCB board surface aft...
Composition of welding arc and composition of dissolving bath; 2, the selection of welding specifications, such as welding current, welding speed, arc length, electrode angle 3, common welding defects and the causes. (three) difficulty solution 1. Explain some basic concepts carefully and ...
Reducing the risk of defects in welds and increasing efficiency are the urgent tasks for welders. One of the reasons for the formation of defects during the welding of copper with steel is the problem of penetration of copper into the microcracks of the steel part. Analysis of all factors ...
With over 30 different types of welding and the various stress combination loads can impose, there are several reasons why weld defects may occur. Because welding is responsible for joining materials together, the structural integrity of welds is imperative for capital assets and infrastructure everywhe...
This method is mainly suitable for plate butt joint, tubular butt joint and saddle pipe joint. Is the boiler, pressure vessel welder should be skilled in the operation skills [1]. 2. Welding defects of single side welding are common 2.1 defects in size The size error of welding structure ...
to be of poor quality, welding welding repair is very difficult, and in the process of production by all kinds of alternating load and pressure, the effect of the weld defects of stress concentration, together with the effective use of welding seam area decreases, and weakened the strength of...
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defects in narrow gap applications; the restricted access of the gap will make progressive repair difficult, but good procedure control should obviate these problems and the use ofnarrow gap weldingmay be seen as a way of imposing a reasonable level of discipline into the control of welding ...