Processing characteristics of cast aluminium heating plate: it can process high strength, high hardness, high toughness, high brittleness and high purity conductive materials of any die casting die; it has no obvious mechanical force during processing, and is suitable for processing low rigidity die casting products and micro-structure; pulse parameters can be adjusted according to needs, and can be roughed, semi-finished and finish on the same machine tool; The pits on the surface are conducive to oil storage and noise reduction; the production efficiency is lower than that of cutting; some energy is consumed on tool electrodes in the discharge process, resulting in electrode loss and affecting the forming accuracy. High-performance cast aluminium heating plate products processing characteristics 1: EDM processing speed and surface quality die in EDM processing will generally use rough, medium and fine classification processing mode. Rough processing is realized by high power and low loss, while the relative loss of electrodes in medium and finish machining is large, and the price of cast aluminum heating plate is low, so the loss of electrodes is very small. 2: EDM processing of carbon slag and slag discharging can proceed smoothly under the condition of producing carbon slag and eliminating carbon slag balance. In practice, carbon slag is often eliminated at the expense of processing speed. 3: The mutual loss between workpiece and electrode in EDM takes a long time to discharge pulse wave, which is conducive to reducing electrode loss.