Suzhou HanQi CNC Equipment Co.,Ltd
Small Hole Drilling EDM Machine/EDM Drilling Machine
EDM drilling is a form of Die-sinking using rotatingelectrode.
Small hole drilling EDM is used in a variety ofapplications.
On wire-cut EDM machines, small hole drilling EDM(Super Drill) is usedto make a through hole in a workpiece in through which to thread the wire forthe wire-cut EDM operation. A separate EDM head specifically for small holedrilling is mounted on a wire-cut machine and allows large hardened plates tohave finished parts eroded from them as needed and without pre-drilling.
Small hole EDM is used to drill rows of holes into theleading and trailing edges of turbine blades used in jet engines. Gas flowthrough these small holes allows the engines to use higher temperatures thanotherwise possible. The high-temperature, very hard, single crystal alloysemployed in these blades makes conventional machining of these holes with highaspect ratio extremely difficult, if not impossible.
Small hole EDM is also used to create microscopicorifices for fuel system components, spinnerets for synthetic fibers suchas rayon, and other applications.
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