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2. Electrical discharge machining - Wikipedia

   en.wikipedia.org/wiki/Electrical_discharge_machining

   There are also stand-alone small hole drilling EDM machines with an x–y axis also known as a super drill or hole popper that can machine blind or through holes. EDM drills bore holes with a long brass or copper tube electrode that rotates in a chuck with a constant flow of distilled or deionized water flowing through the electrode as a ...

3. Rule-based DFM analysis for electric discharge machining

   en.wikipedia.org/wiki/Rule-based_DFM_analysis...

   Electrical discharge machining (or EDM) is one of the most accurate manufacturing processes available for creating complex or simple shapes and geometries within parts and assemblies. A machining method typically used for hard metals, EDM makes it possible to work with metals for which traditional machining techniques are ineffective.

4. Electrochemical machining - Wikipedia

   en.wikipedia.org/wiki/Electrochemical_machining

   It is similar in concept to electrical discharge machining (EDM) in that a high current is passed between an electrode and the part, through an electrolytic material removal process involving a cathode tool, electrolytic fluid, and anode workpiece; however, in ECM there is no tool wear. [1]

5. Hole drilling method - Wikipedia

   en.wikipedia.org/wiki/Hole_drilling_method

   The hole drilling method is a method for measuring residual stresses, [1] [2] in a material. Residual stress occurs in a material in the absence of external loads. Residual stress interacts with the applied loading on the material to affect the overall strength, fatigue, and corrosion performance of the material.

6. Deep hole drilling - Wikipedia

   en.wikipedia.org/wiki/Deep_hole_drilling

   As can be seen in the pictures, a single-lip deep hole drill consists of a tool holder, a shank and the drill head (usually carbide). As far as the design is concerned, it can be generally said that the shank is a few 1/10th of a millimeter to 1 millimeter smaller than the drill head.

7. Via (electronics) - Wikipedia

   en.wikipedia.org/wiki/Via_(electronics)

   Another usage of PTH is known as a castellated hole where the PTH is aligned at the edge of the board so that it is cut in half when the board is milled out of the panel - the main usage is for allowing one PCB to be soldered to another in a stack - thus acting both as a fastener and also as a connector.

8. Injection moulding - Wikipedia

   en.wikipedia.org/wiki/Injection_moulding

   EDM is a simple process in which a shaped electrode, usually made of copper or graphite, is very slowly lowered onto the mould surface over a period of many hours, which is immersed in paraffin oil (kerosene). A voltage applied between tool and mould causes spark erosion of the mould surface in the inverse shape of the electrode. [25]

9. Screen-printed electrodes - Wikipedia

   en.wikipedia.org/wiki/Screen-printed_electrodes

   It is the electrode that completes the circuit of the three-electrode cell, as it allows the passage of current. It enables the analysis of processes in which electronic transfer takes place. Screen-printed electrode with the three electrode system, reference electrode (RE), working electrode (WE) and auxiliary or counter electrode (AE or CE)