Wire brush for cleaning7/28/2023 Use an end brush in the same situation, and the wires will flare out significantly, hindering cleaning efficiency. Photo courtesy of Saint-Gobain Abrasives Inc.Ĭup brushes clean surfaces well because they have a wire arrangement that flares only slightly at the right RPM. This wheel comes color-coded in red, indicating its intended use for certain materials. This means that the wire tips don’t have direct, near-perpendicular contact with the surface, and so they fail to work as they should. If used on a flat surface at a high speed, narrow end brushes will flare out. The logic behind brush selection goes back to how brushes behave in operation. Narrow end brushes work well for cleaning in confined spaces, like holes. A cup brush works well for cleaning surfaces. A stringer bead wheel brush can work well for cleaning pipe and similar welds between passes. One color may indicate stainless, another color carbon, and so on.īrush Shape and Diameter. Sources recommended that fabricators label and perhaps even color-code their brushes to ensure operators never use the wrong brush for the material (see Figure 2). But once that stainless wire touches the carbon steel, it should not be used for stainless steel. She added that an operator can use a stainless steel brush on carbon steel. If you use a carbon steel brush on stainless, the carbon from the wire brush will start to contaminate the stainless steel and will cause it to oxidize and rust.” But when you’re working with stainless steel or aluminum, you need to use a stainless steel or aluminum brush. “When you’re working on carbon steel, you use a carbon steel brush. “One of the biggest concerns we hear about is cross-contamination,” Gaspich said. If they aren’t making full contact with the workpiece, they aren’t working efficiently. If the tips aren’t at or near perpendicular as possible with the workpiece, they aren’t making full contact. The tips of the wire do the work, and nothing else. Push down into the bristles below the wire tips, and that scratching sensation goes away, because the tips aren’t making direct contact with your skin. Try gently running your fingers across the tips of those wires, and you’ll of course feel a scratching sensation. ![]() Rich Pavlek, technical services engineer for Brooklyn Heights, Ohio-based Osborn, used a soft wire finishing brush to illustrate. “Time and time again, the wire tips are attacking the surface to remove the adherence, be it rust, paint, oxidation, slag, or anything else.” “A wire brush really consists of thousands of little impact tools on the surface of metal,” said Debbie Gaspich, director of product management, thin wheels and construction products North America, at Saint-Gobain Abrasives, Worcester, Mass. When surface material like rust is cleaned with a wire brush, there’s no place on the brush for the particles to accumulate.īefore refining brush selection and technique, it helps to understand how a wire brush actually cleans and deburrs. The brushes won’t last long, simply because they aren’t designed to accomplish the tasks of an abrasive grinding disc.Īlso unlike their coated, bonded, or nonwoven abrasive cousins, wire brushes will not load up with previously ground particles. ![]() Sure, it’s possible to work a brush really hard and remove a bit of metal, but it’s not recommended. ![]() Unlike a coated abrasive, a wire brush isn’t a metal removal tool. Choosing the right brush for the job and using the right technique can have a dramatic impact on throughput. Like grinding down weld metal with an abrasive disc, though, cleaning and deburring with a wire brush remains by and large an intensely manual process. Brush types abound-wheel brushes, cup brushes, end brushes, and specialty brushes reach into corners and crevices like few other finishing tools can (see Figure 1). Power wire brushing removes burrs and cleans impurities off various surfaces. A cup brush cleans a weld, removing impurities and slag.
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