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What Actually Sets a Spot Welder Output: Transformer, Arm and Secondary Loop Two spot welders with the same number on the nameplate can behave like different machines. One welds 1.5 mm galvanised sheet at a comfortable setting; the other needs everything it has and still marks the surface. Buyers ...

Sizing a Laser Weld: Power Density, Spot Size and Travel Speed The first question about a laser welding job is almost always about watts, and watts on their own say very little. A thousand watts focused into a spot a fifth of a millimetre across and the same thousand watts spread over a millimetre ...

Why Coated Steel Welds Differently: Galvanised, Primed and Painted Sheet Most of the sheet metal that arrives at our bench is not bare steel. It is galvanised, or primed, or painted, and in each case there is a second material in the joint that was not there when the welding procedure was written. ...

Where the Heat Goes in Resistance Spot Welding Two identical machines, the same programme and the same sheet thickness can produce one joint that peels cleanly and one that leaves a mark with almost no nugget. The difference is rarely the machine. It is where the heat actually went, and how much of ...

Inside Our Assembly Floor: How a Machine Moves From Bay to Crate Visitors walking our aisle in Dongguan usually ask the same question about halfway down: why are the machines standing in long rows instead of being built one at a time in a corner? The answer explains most of what a buyer sees at a ...

After Delivery: How We Handle Service and Spare Parts A welding machine is bought once and maintained for years, and the maintenance half of that relationship is decided long before the first fault. Most of what makes after-sales support work is unglamorous: naming the parts that wear, keeping the ...

The Document Pack That Ships With a Welding Machine: What We Include and Why Every machine we ship leaves the workshop with a document pack, and the pack gets the least attention of anything in the order until the crate is open. That is the wrong way round. A welding machine is a machine, an ...

Customs Clearance for Welding Machine Exports: How We Prepare the File A welding machine that arrives at the destination port without a clean document file is not a delivered machine. It sits in a bonded area while a broker asks for a corrected invoice, and the delay is charged to somebody. Over the ...

Why Copper to Aluminium Welding Is Difficult Electrical engineering loves the copper-to-aluminium joint: busbars meet aluminium housings, transformer terminals meet aluminium cable, battery packs mix copper interconnects with aluminium cooling plates. The combination saves weight and money - and it ...