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Automatic feed system for ultrasonic machining

  • US 5,303,510 A
  • Filed: 05/11/1990
  • Issued: 04/19/1994
  • Est. Priority Date: 05/11/1990
  • Status: Expired due to Fees
First Claim
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1. A method of ultrasonic machining comprising:

  • a. providing ultrasonic machining apparatus having an ultrasonic machining tool mounted in a tool assembly and disposed such that said tool assembly is movable in a vertical direction and a relatively small amount of force is required to overcome frictional force associated with vertical movement of said tool assembly;

    b. directing a slurry stream comprised of abrasive particles in a liquid to a location on a workpiece from which material is removed by means of said tool and said abrasive particles;

    c. providing adjustable counterbalance means effective to immobilize the tool assembly in its vertical travel when the tool is not vibrating; and

    d. providing a force acting vertically downward on the tool assembly which is effective to cause downward movement of the tool assembly so that the tool is spaced apart from said workpiece by a vertical gap of such size that material is removed from the workpiece, where said downward force is less than a force which is effective to cause the tool to contact the workpiece.

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