Garfield County News | 1955-02-24 | Page 25 | New Tool Cuts by Using Sound

New Tool Cuts By Using Sound The Cavitron, according to Nlrkelsworth, a magazine of the International Nickel Co., uses sounds you cannot hear to cut shapes and holes in the hardest materials known, yet the cutting die can be a piece of softer metal. Ultrasonl? vibrations start inside the transducer head, where nickel plates shrink 1,620,000 times a minute under the Influence ol electro-magnetism. Vibrations pass down through a Monel Toolbolder to a cutting implement brazed on the end. Then they enter a stream of water which carries microscopic pirticles of abrasive.' Vibrations diive the abrasive against the piece which is to be cut, so that you have the effect of millions of microscopic chisels. Still id the experimental stage. Cavitron la already being used in making parts "for aircraft, electronic, and Jewelry Industries. It can pierce holes with a tolerance of 0.0003 in. la the hardest materials.