What is an Die sinking electric discharge machine

Die sinking EDM machine is used for cavity forming, It is a kind EDM spark erosion machine that utilizes high-frequency power between positive and negative anodes (copper, graphite, steel as electrode and conductive material as workpiece，Such as: Steel, Carbide, Aluminum,  Heat Resistant Alloy, Titanium, copper ), to break through the gap between electrode and workpiece, to create high temperature to melt and remove metal to get needed profile cavity. It can realize the Single spindle discharge machining or the three-axis and multi-axis dynamic discharge machining. The product made by EDM die sinker/sinking sparkling machine is like a projective copy of the profile of the electrode on the workpiece. 

According to the control mode, the EDM is divided into single-axis control or three-axis control and multi-axis control.

Single-axis manual EDM machine has automatic control on Z-axis. Manual control on the X and Y axes. use handwheel to move to the location of drilling position according to a digital readout of linear scale.

CNC EDM machine, basically, there are three axis control(X, Y, Z), 4-axis control(X, Y, Z and W), 5-axis control(X, Y, Z, W and C), 6-axis control, (X,Y, Z, W, B and C) and even more. On the CNC EDM machine, Z axis spindle servo stroke: W axis is the stroke of machine head; C axis rotation in in vertical direction; B axis rotation in horizontal direction; Equipped with automatic electrode, CNC EDM machine can do automatic machining，it is fast and convenient to locate position for spark discharge machining. 

According to the number of spindles, the EDM is divided into single-head control or double-head control and multi-head control.

Double heads and multi-heads CNC EDM has two or multi separated spindles and controllers, travel of table is much bigger than regular big EDM machines, each head can do separated machining at the same time.

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