Method for obtaining a high surface finish on titanium-based coa

Details Method for obtaining a high surface finish on titanium-based coa Method for obtaining a high surface finish on titanium-based coa

1997-06-02

1999-06-15

Valentine, Donald R.

Electrolysis: processes, compositions used therein, and methods

Electrolytic erosion of a workpiece for shape or surface...

Electrolyte composition or defined electrolyte

205684, C25F 316

Patent

active

059118679

ABSTRACT:
The present invention relates to a method for polishing coated cutting tools and wear parts, where at least the outer layer of the coating consists of TiN, TiC or Ti(C,N), to a high surface finish. An electrolytic method is used with an electrolyte consisting of perchloric (HClO.sub.4) or sulphuric (H.sub.2 SO.sub.4) acid, 2-50 volume %, in methanol or other organic liquid. The method is easier to control than conventional mechanical methods and renders a high surface finish over the whole coated part.

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Dialog Information Services, File 351, Dialog Acc. No. 008679502, Derwent Acc. No. 91-182522/25, Week 9125, abstract of JP-A-3111600, May 1991.

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