| 摘要 |
A high speed machining process and equipment is disclosed. Machining is carried out mainly by evaporation and pulse duration is controlled to below one micro-sec. Various techniques of reducing system impedance and reducing wire electrode vibrations are disclosed including changes in the pulse generator circuit construction, the lead wire, wire guides and current pick-ups for wire electrode and work piece. This reduces debris size and permits good surface finish of work piece. A novel process information controlled power supply circuit is also disclosed in which the energy requirement, at any instant, of load is estimated and only the estimated energy is supplied, the balance and residual energy being stored in energy storing means. This makes the process very efficient. A shield of novel construction is also provided which absorbs the electro-magnetic disturbance waves. |
