How do I resistance spot weld sheet to tube? - TWI
A fused weld nugget can be achieved if the tube is substantially thicker than the sheet, but poor fusion often occurs with thinner wall tubes. In general, a thickness ratio of tube wall to sheet thickness of at least 2:1 should allow good weldability.
Spot welding sheet to tubing - Miller Welding Discussion Forums
Jul 14, 2003 · For instance, can I spot weld a sheet to a tube, where the bottom tong does not fit up against the actual weld joint, but rather to the bottom of the tube and the current would flow around the tube before jumping to the sheet? One frequent task would be the joining of sheet down to 24-gauge to tubing as thin as .065-inch.
Spot Welding Tube - Mechanical engineering general discussion
Mar 4, 2011 · It is possible to spotweld thin sheet to thinwall tube. You can use a process which uses two electrodes on the side of the sheet metal whereby the current passes into and out of the sheet metal not the tube.
Spot Welding: 7 Things to Know (Updated for 2025) | ASM
Dec 18, 2024 · Spot welding consists of firing an electrical current through two pins that are pinching two or more layers of sheet metal together. As the wire heats up, the material melts into a coin at the point of contact, fusing the material.
How to Spot Weld: 10 Steps (with Pictures) - wikiHow
Jan 2, 2025 · Spot welding uses the heat from an electrical current to join 2 pieces of metal quickly, and is typically used for joining sheet metal. It’s also easy to do with a spot welding machine, which has 2 electrode tongs about 6 inches (15 cm) long that pass an electrical current through the metal to fuse them together.
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The Ultimate Guide to Spot Welding: Everything You Need to Know
Jul 29, 2024 · In summary, spot welding involves clamping metal sheets between electrodes, passing a high electric current to generate heat and melt the metal at the contact point, and then allowing the molten metal to solidify, forming a solid weld …
Amazon.com: Sheet Metal Spot Welder
Handheld Spot Welder, Battery Spot Welder with Automatic and Manual Modes, 80 Gears Adjustable, Mini Portable Spot Welding Pen with 2pcs Welding Tips & Nickel Sheets for DIY Battery Pack Welding
5 Best Spot Welders For The Money in 2022 - Welding Insider
Are you looking for the best spot welder? Read our reviews and buyers guide to find some of the best machines available for spot welding tasks.
This paper presents simulations from SORPAS ® 3D of the single-sided spot welding process applied to sheet-to-tube joining together with an experimental setup from industry to enrich the presentation. The process is revisited by simulated effects that are …
Spot Welders - Duro Dyne
The BAW is an efficient but powerful resistance welder designed specifically to do the job of spot welding steel in configurations most usually encountered during sheet metal duct applications. The BAW Free Standing Spot-Welding Machine will weld metal from 30 gauge to 11 gauge.