Keep your grinding disc nearly parallel to the metal so the grinder smoothes out the edges of your weld even to the sheet metal.
Grinding down welds on sheet metal.
Hold the grinding disc as level as you can to the piece of metal.
At every process upstream most precision sheet metal fabricators employ at least some level of automation.
It s better to leave just a little extra rather than go to far.
To achieve this initial stock removal and if the surface finish is not essential the metal worker might choose to use a simple grinding wheel with an angle grinder.
Grind it almost flush maybe leaving a very slight crown.
The act of grinding can be deceivingly simple.
The last step is to grind down the weld with a 3m reinforced weld grinding wheel.
High where overgrinding is a concern such as thin walled sheet metal.
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Grinding down a weld on a formed workpiece is and probably will remain an intensely manual operation.
The aim here is to grind the joint down to a level and continuous surface with the rest of the parent metal.
Using a grinding wheel on a weld.
But the devil s in the details.
Welds tend to have dips up and down so holding the grinder at an angle could cause it to gouge into the metal.
But there s no getting around it.
Removing weld splatter without overgrinding 50 grit or finer.
Overhead work where the weight of the grinder is important.
This is a slightly worn they come with straight edges 40 grit flap disc.