THE MANUFACTURING METHOD OF CUT ELECTRO-FORMING MEMBER WHITCH HAVE STEPPED FORM, AND CUT ELECTRO-FORMING MEMBER WHITCH HAVE STEPPED FORM MADE BY IT

摘要

A method of manufacturing a cut electroforming member which has a stepped form and a cut electroforming member made by it are disclosed, in which a nonconductive section is formed in a core material and the cut electroforming member has a stepped form. An electroforming process is performed in an electroforming tub by connecting a negative electrode to the core material having a nonconductive section and a positive electrode to a melted metal. A desired sectional shape for the electroforming member is formed at one end or both ends of the nonconductive section. In this case, the shape of the end of the nonconductive section is imprinted on the end of the cut electroforming member. The nonconductive section may be divided into an upper section and a lower section, and may be made by injecting a liquid material into its die and hardening it. The core material is covered with a forming material. To obtain a stepped form in the cut electroforming member, a nonconductive portion may be formed using a photoresist or an ultraviolet hardening section hardened by ultraviolet rays may be formed. Alternatively, a solid type nonconductive shape portion may be formed in the cut electroforming member. The solid type nonconductive shape portion may have an inclined stepped form.