What are the requirements for the processing speed of plastic molds?
In the process of injection molding, processing speed is very important because it not only affects the processing cycle of the product, but also determines the processing cost of the product.
The speed of electrical discharge machining refers to the mass and volume of the workpiece eroded within a certain pulse parameter and the same unit time. It can be represented by batch processing speed and batch processing speed respectively.
The maximum machining speed relative to the electric pulse is an important indicator for measuring the performance of electric pulse machining and machine tool technology on mold steel with the same surface roughness. Generally speaking, manufacturers will provide the maximum processing current to ensure that the mold can achieve the highest processing speed in the optimal processing state. However, in the actual machining process, the machining and chip removal conditions may differ from the ideal state, and the size and shape of the workpiece will also constantly change. Therefore, the machining speed is often lower than the maximum machining speed index of the machine tool.
During each injection process, pulse discharge will leave a small hole on the surface of the workpiece. The size of the pits and the number of etched materials are directly proportional to the pulse energy. That is to say, the greater the pulse energy, the more heat is transferred to the workpiece and the more material is removed. In theory, the speed of electrical discharge machining is directly proportional to the energy and frequency of a single pulse. But in practice, the effect of a single pulse is not reflected individually, but rather the result of the action of multiple pulses. Due to the continuous nature of pulse power supply, the process of transferring energy to the machining gap through pulse state is very complex. The machining speed is a multi function related to pulse discharge time, pulse interval, pulse discharge current, pulse waveform, machining object performance, electrode material, and chip removal conditions.