Chemical machining includes dipping a workpiece into a tank made up of a chemical Option (etchant). The etchant used for this process is often a combination of sturdy chemical acids that respond to metal—dipping the metal in to the etchant results in the uniform dissolution of metal with the workpiece. https://laser-engraving-machine12100.bloggactif.com/27121227/details-fiction-and-cnc-machine-shop