Analysis of micro-hole processing technology At present, micro-hole processing technology is now widely used in precision filtration equipment, chemical fiber spinnerets, jet engine nozzles, electronic computer print heads, printed circuit boards, planetarium star hole plates, aviation gyroscope instrument components, The leader in the processing of aircraft blades and red blood cell filters in medical devices. This article analyzes the methods of laser machining and EDM microhole machining. Each machining method has its unique advantages and disadvantages, which mainly depend on the size of the workpiece aperture, the arrangement of the holes, the density of the holes, and the accuracy requirements of the holes.
Laser processing mainly corresponds to materials below 0.1 mm, and laser processing technology has been widely used in the electronics industry. For example, welding of precision electronic components, integrated circuit chip leads and multilayer circuit boards; drilling, scribing and slicing on ceramic or gem substrates in hybrid integrated circuits; laser walking heating and annealing in semiconductor processing processes; lasers Etching, doping and oxidation; laser chemical vapor deposition, etc. However, as a micro-hole processing of metal, the laser has the problem that it will produce some black burning phenomenon, it is easy to change the material of the material, and the phenomenon that the residue is not easy to clean or cannot be cleaned. Not a perfect solution for microhole machining. If the requirements are not high, you can try it, but for batch orders, laser processing cannot meet the customer's delivery time and cost expectations.
With the continuous expansion of micro-machinery, precision machinery, optical instruments and other fields, EDM micro-hole machining technology has received extensive attention. The advantages of EDM micro-hole machining are its small force in processing, the processing aperture and depth can be controlled by adjusting the electrical parameters, etc., making its research in various countries increasingly active. The electric spark precision micropore machine uses the principle of electric spark discharge to process precision micropores. It is suitable for processing various types of precision micro-holes of nozzles, precision micro-holes of chemical fiber spinning boards and so on. The CNC electric spark precision micro-hole machine processes the micro-holes of different specifications, shapes and hole patterns of the spinneret and various shaped micro-holes of the spinneret through simple electrode numerical control combination. The range of precision circular micro-holes processed by EDM precision micro-holes is generally within ï¿ 0.08- ï¿ 1mm, and the depth of the holes is generally within 1-3mm. The machining accuracy of the hole (hole diameter Φ0.2mm thickness ≤1.0mm material 1Cr18Ni9Ti) ± 0.003mm. Processing surface roughness: Ra≤0.6μm. Single hole processing time (pore diameter ï¿ 0.2mm thickness 1.0mm material 1Cr18Ni9Ti) ≤30 seconds. The electric spark precision micropore machine can use round elongated wire electrode or elongated flat wire electrode, and can also use special-shaped integral electrode to process round or various shaped cross-section micropores. However, EDM is a typical slow machining, which is particularly obvious when processing small holes, and the time slows down with the improvement of machining accuracy.
Suzhou Serge Electronic Technology Co., Ltd. provides multi-axis CNC EDM small hole machine (configurable slot milling function), multi-axis CNC EDM micro hole machine, high-speed EDM perforator, ECM electrolytic deburring, ECM electrochemical deburring Machine tool, EDM take-off tap machine, CNC EDM wire cutting machine, EDM machine tool technical service, the company can tailor various EDM special machines according to the special requirements of customers, and can provide customers with a complete set of EDM solutions. Enterprise website
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