Show new tool cuts by using sound the Ca according to Nick elsworth a magazine of the international nickel co uses sounds you cannot hear bear to cut tut shapes and holes in the hardest materials als known yet the cutting die can be a piece of softer metal ultrasonic vibrations start inside the transducer head where nickel plates shrink times a minute t under the influence of electromagnetism ma a sm vibrations pass down or through a monel to a cutting implement brazed on the end then they enter a stream of water which carries microscopic particles ar teles of abrasive vibrations d drive ri e the abrasive against the piece which is to be cut so that you have the effect of millions of microscopic chisels still in the experimental stage Ca is already being used la in making parts for aircraft electronic ellee ironic and jewelry industries it can pierce holes with a tolerance of in in the hardest materials |