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In steel structure fabrication, flat position welding is the most basic and commonly used position, and it is also the easiest to achieve good weld quality. Although flat welding is relatively less difficult, producing a defect-free weld with good appearance still requires solid fundamental skil...Read more »
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What Are the Differences Between AWS Stainless Steel Electrode Suffixes 15, 16, 17, and 26? A Simple Guide When selecting stainless steel welding electrodes, you may often see AWS classifications such as AWS E308-15, E308-16, E308-17, and E308-26. Many users understand that the “308” part repr...Read more »
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Choosing the correct welding electrode is essential for achieving strong, reliable, and high-quality welds. Different welding applications require different electrode types depending on the base metal, welding environment, mechanical requirements, and operating conditions. Selecting the wrong ...Read more »
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TIG spot welding (also known as gas tungsten arc spot welding) is a specialized technique that uses a tungsten electrode to generate an arc that melts a localized area of overlapping metal sheets, forming a fusion spot without the use of filler material. Unlike resistance spot welding, which rel...Read more »
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E71T-11 and E71T-GS both belong to AWS A5.20 carbon steel self-shielded flux-cored welding wire (FCAW-S). They do not require external shielding gas and are very suitable for outdoor or gasless environment operations. They are usually welded with DCEN (DC reverse: wire negative electrode). Howe...Read more »
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The rainy season presents unique challenges for welding operations. High humidity, condensation, and moisture ingress are not just discomforts—they are direct threats to weld integrity. Moisture introduced into the weld zone can lead to hydrogen-induced cracking, porosity, and embrittlement. Ad...Read more »
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There are two most basic and easily confused types of welding rods in manual arc welding: acidic welding rods (such as AWS E6013) and alkaline low-hydrogen welding rods (such as AWS E7018). Many welders can’t tell when to use acidic and when to use alkaline. Choosing the wrong welding rod ...Read more »
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The thermal conductivity of copper and copper alloys is more than 5 times that of carbon steel. Welding is prone to pores, lack of fusion, and thermal cracks. The selection of welding wire directly determines the conductivity, corrosion resistance, and wear resistance of the weld. Based on the...Read more »
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In GMAW (gas metal arc welding) practice, horizontal welding is a position that many beginners have mixed feelings about. It’s easier than vertical or overhead welding, but if parameters and technique are wrong, the weld tends to “drip” (sag) or show undercut. The primary chal...Read more »
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I. What is welding arc blow? Welding arc blow refers to the phenomenon that the arc deviates from the original axis direction of the electrode or electrode during the welding process, which will directly destroy the stability of the arc, affect the weld shape and welding quality, and even ca...Read more »