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Electrolytic process and apparatus for forming pattern on surface of metallic object

  • US 4,997,529 A
  • Filed: 09/06/1989
  • Issued: 03/05/1991
  • Est. Priority Date: 09/06/1988
  • Status: Expired due to Fees
First Claim
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1. An electrolytic process for forming a desired pattern on the surface of a metallic object comprising the steps of:

  • preparing a screen of electrically insulating material having a perforated pattern corresponding to the pattern to be formed on said metallic object;

    placing said screen on said metallic object in close contact therewith;

    applying an electrically conducting paste containing an electrolyte to said surface of said metallic object through said screen;

    placing an electrode in contact with said paste; and

    causing an electric current to flow between said electrode and said metallic object so as to cause electrolysis thereby forming said pattern on said metallic object, andmoving said paste and said surface of said metallic object relative to each other during execution of said electrolysis, wherein said relative movement is caused by a movement or vibration of said electrode.

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