Griding A Weld On Sheet Metal

Made of compressed composites if they get in a bind or crack from heat they can shatter sending brutal shrapnel all over the place including your face.

Griding a weld on sheet metal.

In this demo see the 2 step weld removal and paint prep process using a 3m cubitron ii flap disc 969f and a scotch brite light grinding and blending disc. Grinding down a weld on a formed workpiece is and probably will remain an intensely manual operation. Hold the grinding disc as level as you can to the piece of metal. As a rule when mig welding sheet metal never use a body filler metal that is thicker than the base metal.

A100 a30 fine grinding third ste. The aim here is to grind the joint down to a level and continuous surface with the rest of the parent metal. These are essentially layered squares of sandpaper bonded onto a plastic or composite disc. K36 k120 pre grinding second step.

But there s no getting around it. However if you are dealing with materials that are 18 gauge or thicker one should be able to use 030 inch welding wire. It is recommended that a welder should use 023 or 024 inch wire for light gauge sheet metal work. Removing weld splatter without overgrinding 50 grit or finer.

The act of grinding can be deceivingly simple. Better surface finish than a grinding wheel or fiber disc grit for grit. At every process upstream most precision sheet metal fabricators employ at least some level of automation. The removal of excess stock from the weld itself.

For weld clean up on sheet metal there are much better tools available. Kfs 125 ce ii va. High where overgrinding is a concern such as thin walled sheet metal. Overhead work where the weight of the grinder is important.

Keep your grinding disc nearly parallel to the metal so the grinder smoothes out the edges of your weld even to the sheet metal. Welds tend to have dips up and down so holding the grinder at an angle could cause it to gouge into the metal. Another issue with grinding wheels is that they are fragile. Continue the same way along the sides of the piece of sheet metal.

Initial weld grinding the first stage of weld finishing is the same.