Welding is a fabrication process that joins materials, mostly metals, by using high heat to melt the parts together and allowing them to cool, causing fusion. It is a widely used technique in the fabrication of equipment such as tubes or heat exchangers.
Latest welding news
Below you can find the latest newsitems that involve the topic of welding.
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Marlin Steel provides better welds thanks to the most sophisticated welding machine available. Its brand new Lincoln Robotic TIG (GTAW) and MIG (GMAW) welding cell provides optimum welds for its custom metal forms so its baskets and sheet metal racks are sturdier and longer-lasting.
The new Tetrix XQ 230 from EWM delivers TIG welding at the highest level. The Tetrix XQ 230 is incredibly powerful and can be run directly from a single-phase 230 V power socket, which makes it very versatile in use.
Wall Panel Membranes are structures that form the basis of heat exchangers used in a variety of boilers to transfer heat in industrial processes such as petrochemical processes.
ESAB has introduced Exaton 19.9.Nb HF, classified as an AWS A5.9: ER347 as well as an EN ISO 14343-A S 19 9 Nb, is a 300 series austenitic steel submerged arc welding wire.
Thanks to the integrated production of butt weld fittings in Petrol Raccord, Tecninox and Tecninox do Brasil mills, Raccortubi do Brasil is able to supply with a complete range from ½″ to 56″, with no thickness limits.
Stoody®, an ESAB brand, announced that Stoody HB-64 cored wire has been awarded Fearnley Procter NS-1 Level 2 certification for oil field hardbanding application and reapplication.
Weld Purging Experts Huntingdon Fusion Techniques HFT®’s innovative QuickPurge® Systems, which are manufactured up to 88″ (2,235mm), dramatically reduces the space that needs to be purged, thereby reducing purging time dramatically, making huge savings in both time and gas costs.
TWI Senior Project Leader, Binyan He has been elected as a Member of The Welding Institute. The election committee also approved Binyan’s registration as a Chartered Engineer. This means that she can now also carry the designatory letters CEng and MWeldI after her name.
EWM AG is expanding its XQ series in the area of MIG/MAG welding. Following on from the Titan XQ puls, the manufacturer of arc welding technology is now releasing its new MIG/MAG multi-process welding machines – the Phoenix XQ puls and the Taurus XQ Synergic.
Stainless steel is a popular material in various industries due to its corrosion resistance, durability, and aesthetic appeal. Here are some key points to consider when welding stainless steel:
Choose the appropriate welding process: There are several welding processes suitable for stainless steel, including Tungsten Inert Gas (TIG) welding, Metal Inert Gas (MIG) welding, and Stick welding (Shielded Metal Arc Welding). TIG welding is often preferred for stainless steel due to its precision and ability to produce high-quality welds.
Prepare the materials: Before welding, it’s important to clean the stainless steel surfaces to remove any contaminants, such as oil, grease, or dirt. Use a stainless steel wire brush or a dedicated solvent to clean the area.
Select the appropriate filler material: When welding stainless steel, it’s generally recommended to use a filler metal that matches or is compatible with the base metal. Commonly used filler materials for stainless steel welding include austenitic stainless steel filler rods or wires, such as ER308, ER309, or ER316.
Set the welding parameters: The welding parameters, such as current, voltage, travel speed, and shielding gas flow rate, will depend on the thickness of the stainless steel and the specific welding process being used.
Ensure proper shielding gas: Stainless steel welding typically requires the use of an inert gas, such as argon or a mixture of argon and helium, to create a protective atmosphere around the weld and prevent oxidation. The shielding gas should be supplied continuously and cover the weld pool adequately.
Maintain good joint fit-up and control heat input: Stainless steel has a relatively low thermal conductivity compared to other metals, so it’s essential to control the heat input during welding. Proper joint fit-up, including gap and root opening, helps control distortion and ensures proper fusion.
Post-weld treatment: Stainless steel welds may require post-weld treatment to restore corrosion resistance. This can involve processes such as passivation or pickling, which remove any oxides or contaminants from the welded area. The specific post-weld treatment will depend on the application and the stainless steel grade used.
It’s important to note that welding stainless steel can be complex, and there may be additional considerations depending on the specific application, grade of stainless steel, and welding codes and standards. If you’re not experienced in welding stainless steel, it’s advisable to consult with a professional welder or seek training to ensure proper techniques and safety precautions are followed.
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