Method of forming fine bore

Details Method of forming fine bore Method of forming fine bore

1980-05-06

1981-09-22

Tufariello, T. M.

Chemistry: electrical and wave energy

Processes and products

204 11, C25D 102, C25D 108

Patent

active

042908574

ABSTRACT:
A method of forming a fine bore having the steps of effecting electro-forming on a core wire to form an electro-cast rod, slicing the electro-cast rod by forming chips each having the core wire and removing the core wire to thereby form in each chip a fine bore of a diameter coinciding with the diameter of the core wire and having a high circularity and cylindricalness. Since the fine bore is constituted by an electro-formed layer, the bore exhibits high wear resistance and, hence, a high durability when used as nozzle bore of an ink jet plotter.

REFERENCES:
patent: 3167489 (1965-01-01), Hadjian
patent: 3329588 (1967-07-01), Mears
patent: 3461045 (1969-08-01), Franks
patent: 3607674 (1971-09-01), Lauritzen
patent: 3704175 (1972-11-01), MacKinney

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