A method of removing surface defects with a chisel, so that the defects will not be worked into the finished product. Chipping is often used simply to remove metal, for example when preparing a joint for welding. See CHIPPING HAMMER.
Chipping is used to remove scale, rust, or other foreign materials from the workpiece. It can also be used between beads to remove slag, and after welding to ensure a neatly finished weld. Chipping is often used in combination with wire-brushing to prepare surfaces.
If defects and foreign matter are removed by gas cutting, the terms de-seaming or de-scarfing are used.