Chemically accelerated metal finishing process

摘要

A process for barrel finishing, vibratory finishing, deburring or polishing the surface of a metal workpiece such as a zinc die casting is described. The article to be finished is subjected to agitation in a rotating barrel or a vibratory machine containing abrasive media and an aqueous accelerator solution of a lower aliphatic acid having at least two and not more than six carbon atoms. The accelerator solution may also contain sodium bisulfate. In the process, the accelerator solution is added to or flushed through the finishing apparatus.