While you might not need the metal components you’re making to be shiny, a lapping machine can be used to create a flat, uniform surface, improving manufacturing precision and aiding in the creation of complex shapes. The main factor in getting good results from a lapping machine comes down to the design of the lapping carrier.

How a Lapping Machine Works

The lapping carrier, sometimes called a “work holder,” holds parts inside the lapping machine, maintaining a parallel orientation between the part and the polishing surface. This carrier spins while a polishing plate passes underneath it, moving abrasives against the part surface in an orbital pattern. To keep the parts in place, a large weight or jig pushes down on the both the parts and the carrier. In double-sided lapping machines, the positioning tool has its own polishing surface. As the abrasive rubs against the part, the surface is milled, removing scratches, trash and minor manufacturing imperfections. Continue reading →