���速・電鋳工具製造技術の開発(機械要素,潤滑,工作,生産管理など)

Two types of electroforming techniques that can produce thick electroformed coatings were developed to utilize the coatings as microgrinding tools. Sedimented abrasive grains on the cathode were agitated continuously at a low speed to increase the nickel ion density near the cathode when the low-speed agitation technique was employed. In addition, an open space 3 mm square and 15 mm in length was grooved on a cylindrical aclylic insulator that covered the columnar anode, and an attempt to fill the space with the deposited coating was made by rotating the cathode at a low speed when the low-speed rotation technique was employed. It became obvious that an electric force line was concentrated at the edge of the cathode, so that a coating with uniform thickness could not be realized when the low-speed agitation technique was employed. 0n the other hand, high-speed electroforming that can produce a thick coating 3 mm square and 15 mm in length in 18.3 hours was accomplished when the low-speed rotation technique was employed.