Explore the essential building blocks of welding with our in-depth guides on materials and metalworking techniques. This category dives into the properties, uses, and weldability of various metals—from steel and aluminum to exotic alloys—helping you choose the right material for every project. Whether you’re cutting, shaping, grinding, or joining, you’ll find tips, tool recommendations, and expert advice to master the art of working with metal.
Potassium chloride, usually written as KCl, is commonly used on the reference side of a pH electrode. It does not sense pH itself. Instead, it helps the reference system maintain a steady electrical potential so the meter can accurately interpret…
One thing every welder learns sooner or later is that not every stick electrode can sit on the bench overnight and still perform the same the next day. Low-hydrogen electrodes can absorb moisture after their sealed package is opened, and…
Whether you’re repairing a trailer, building custom furniture, restoring machinery, or learning the trade, choosing the right base metal is the first step toward a sound weld. Different metals respond to heat in very different ways, so the material affects…
A clean cut makes accurate weld fit-up much easier. Jagged edges, heavy dross, excessive heat, and wandering cuts can create uneven root openings, increase cleanup, and make distortion harder to control. The right metal cutting method depends on the material,…
One thing I learned early in my welding career is that how you store low-hydrogen electrodes can make or break the result. I once grabbed a box of E7018 rods that had been sitting open in the shop. The arc…
Removing zinc coating from galvanized steel before welding helps expose clean base metal, reduce zinc entering the weld pool, and limit the amount of zinc oxide fume produced at the joint. For most small jobs, controlled grinding is the practical…
No dedicated tailpipe expander? You can sometimes create a small slip-fit expansion on a removable section of exhaust tubing with a smooth steel taper and light, even taps. Treat these improvised methods as minor fit-up adjustments, not substitutes for a…
Cleaning galvanized metal before painting is more than wiping off dirt. You need to identify the type and condition of the zinc coating, remove oil and loose corrosion products, create only the amount of surface profile the coating requires, and…
A rushed cleaning job can turn a good welding setup into an unstable arc, a porous bead, or a joint that needs to be ground out and welded again. Rust, mill scale, oil, paint, moisture, and grinding debris can all…