Electroforming of gear wheel moulds with small moduls
Abstract
A new method of electroforming gear wheel molds is presented in which the electroformed layer can be obtained at high speed without corner weakness anywhere. In this method, the gear master model made of nonconducting material is located on a stainless steel plate connected with the negative of the power supply. Metal ions are deposited on the plate and a metal layer is gradually formed. The electric current density is almost the same everywhere on the cathode and thus no corner weaknesses are observed. Strong flushing of electolyte over cathode and special pulse power supply improve the current density and generate a dense electroformed layer. This method can be used to produce both mold cavity parts and electrodes for EDM gear models. In has been successfully used in producing many gear injection molds.
- Publication:
-
Nanjing Aeronautical Institute Journal
- Pub Date:
- June 1992
- Bibcode:
- 1992NaAIJ..24..241Z
- Keywords:
-
- Current Density;
- Electroforming;
- Gears;
- Stainless Steels;
- Cathodes;
- Electric Current;
- Electrodes;
- Injection Molding;
- Metal Ions;
- Molds;
- Mechanical Engineering