Wire Erosion process removes material using electrical discharge erosion action with a wire electrode traveling longitudinally through the workpiece. The relative moving passage between the wire electrode and workpiece is controlled by a CNC system according to a preprogrammed CNC program to cut the workpiece into desired shapes. Wire Erosion is widely used to cut punches and dies, shaped pockets and many other industrial applications....
Spark Erosion is a recent machining technique with lot of advantages in particular when machining difficult pieces with intricated shapes. The principle of spark erosion is uncomplicated. A workpiece and tool are placed in a working position in such a way that they do nor touch each other. The workpiece and the tool are conected to a DC source via a cable. The voltage applied between the electrode and the workpiece and the discharge current have a time sequence. The voltage builds up an electrical field throughout the space between the electrodes. They are separated by a gap which which is filled with an insulating fluid....
Simply speaking, the wire cut EDM machine have repeatedly cutting function, similar with low-speed wire cut EDM machine. In order to maintain the stability of molybdenum wire, to enhance the quality of workpiece surface finishing, therefore, will reduce the wire speed, thus named "Medium speed wire cut EDM"....
CNC high speed wire cut EDM is the special local products in china, which is widely used in mould industry. It is different from CNC slow speed wire cut EDM which is high price in other countries. The price of low speed wire cut EDM is about ten times higher than high speed wire cut EDM. But on the quality, high speed wire cut EDM can also satisfy the wide customers¡¯ demands well....
Small hole drilling EDM is used to make a through hole in a workpiece in through which to thread the wire in Wire-cut EDM machining. The small hole drilling head is mounted on wire-cut machine and allows large hardened plates to have finished parts eroded from them as needed and without pre-drilling....
Both die-sinker and wire-cut EDM machines use sparks to remove electrically conductive material. But while both types are electrical discharge machines, there are differences in their use and operation. Some of these differences are listed in the following text....
Wire Cutting is a type of an electrical discharge machining. It is a thermal mass-reducing manufacturing process by using a continuously moving wire. A thin single-strand metal wire is fed through the workpiece, occasionally occurring submerged in a tank of dielectric fluid or being continuously sprayed by dielectric fluid. This process is used to cut plates that are too thick or too difficuilt to cut with other methods. The wire, which is constantly fed from a spool, is held between upper and lower guides....
Electrical Discharge Machining (or EDM) is a machining method primarily used for hard metals or those that would be impossible to machine with traditional techniques. One critical limitation, however, is that EDM only works with materials that are electrically conductive. EDM can cut small or odd-shaped angles, intricate contours or cavities in pre-hardened steel without the need for heat treatment to soften and re-harden them as well as exotic metals such as titanium, hastelloy, kovar, and inconel....
Wire EDM machining (Electrical Discharge Machining) is an electro thermal production process in which a thin single-strand metal wire in conjunction with de-ionized water (used to conduct electricity) allows the wire to cut through metal by the use of heat from electrical sparks....
A machining method typically used for hard metals, Electrical Discharge Machining (commonly known as "EDM Machining") makes it possible to work with metals for which traditional machining techniques are ineffective. An important point to remember with EDM Machining is that it will only work with materials that are electrically conductive....