초록 ▼

A method of making a microstructural shaped article from a high hardness substrate workpiece, in which an energy-transmissive shaping member is secured in energy-transmissive relationship to an energy source, and the substrate workpiece is positioned in alignment therewith. A fine grain slurry of so

A method of making a microstructural shaped article from a high hardness substrate workpiece, in which an energy-transmissive shaping member is secured in energy-transmissive relationship to an energy source, and the substrate workpiece is positioned in alignment therewith. A fine grain slurry of solid particles is provided between the energy-transmissive shaping member and the substrate, and the substrate workpiece is milled by the energy-transmissive shaping member in compressive bearing relationship to the substrate through the fine grain slurry of solid particles, for sufficient time to form the desired shape in the substrate workpiece. A reusable, tribologically enhanced die is also described, for use in the method of the invention. The energy source may be an electroacoustic energy source or an electric power energy source. The non-etched microstructural articles of the invention include knives, saws, and other instruments useful for ocular and other surgical applications.

대표청구항 ▼

A method of making a microstructural shaped article from a substrate workpiece, comprising the steps of: (a) providing a metal mold comprising a predetermined shape to be imparted to the substrate workpiece; (b) securing the metal mold in ultrasonic energy-transmissive relationship to an ultrasonic

A method of making a microstructural shaped article from a substrate workpiece, comprising the steps of: (a) providing a metal mold comprising a predetermined shape to be imparted to the substrate workpiece; (b) securing the metal mold in ultrasonic energy-transmissive relationship to an ultrasonic horn; (c) providing the substrate workpiece in a fixed position in alignment with metal mold in ultrasonic energy-transmissive relationship to an ultrasonic horn; (d) disposing directly between the metal mold and the substrate workpiece only a fine grain slurry of solid particles which are energy-transmissive of ultrasonic energy; and (e) ultrasonically milling the substrate workpiece with the ultrasonic horn energized and the metal mold in direct compressive bearing relationship to the substrate through the fine grain slurry of solid particles disposed directly between the metal mold and the workpiece substrate, for sufficient time to form said predetermined shape in the substrate workpiece.