What equipment can remove the internal hole burr - Electrochemical deburring machine mechanical metal parts for internal hole deburring finishing, is an indispensable advanced process in the production of modern products, using electricity without changing the original dimensional accuracy of the parts Chemical deburring machine. It can remove the burrs generated by the deep holes, cross-correlation holes and concentric holes of the mechanical parts during the processing, and improve the quality of the parts. It is a necessary, economical and efficient method for the machining process. Electrochemical deburring machine tools can be used for hydraulic pump steering pumps and hydraulic valve bores (including rotors, stators, oil distribution plates, valve bores, pump body bores and connection planes), such as for the engine's friction sub-parts (including the crankshaft) After the deburring process is performed on the hole, the inner hole of the cam shaft, the inner hole of the piston, various gears, the bearing bush, etc., a remarkable effect can be obtained. Automatic electrochemical deburring equipment processing features: effectively remove the burrs and flash edges after surface processing, achieve high edge uniformity and good surface quality for processing edges, with good burr removal effect, safe, reliable and efficient And so on, the general situation can be increased by more than 10 times compared with the traditional process.
The basic principle of electrochemical deburring is to use the electrochemical reaction phenomenon in which the metal dissolves in the electrolytic working solution. Taking the workpiece as the anode and the tool electrode as the cathode, when forcing the electrolyte to pass through a very small gap between the burr on the workpiece and the specially designed tool electrode, the electrolysis voltage is applied for a short time, at which time the burr or edge portion of the workpiece The current is concentrated and the current density is also the largest, so that the burrs are quickly dissolved and the edges and corners are rounded.
In electrochemical deburring, the reaction between electrodes is quite complicated and there are many influencing factors. Taking electrochemical deburring of iron parts as an example, when NaNO3 is used as the basic aqueous solution, there are H+, OH-, Na+, NO3-plasma in the electrolyte. At this time, the anode reaction is:
Under the action of an external power source, the surface of the anode (ie workpiece):
Fe-3e—> Fe +++
Fe ++++3OH——> Fe(OH)3↓
The resulting Fe(OH)3 precipitate is carried away by the flowing electrolyte.
In an ideal case, during the electrochemical reaction, the anode metal (ie, the workpiece) is continuously dissolved, and the water is decomposed and consumed, thereby causing a certain change in the concentration of the electrolyte, and other ions are electrically conductive during the electrochemical reaction. It does not itself consume, and the precipitated metal hydroxide is removed by filtration.
In the process of electrochemical deburring, both the workpiece and the tool electrode are relatively stationary, that is, an electrochemical machining method belonging to the stationary tool cathode. It is suitable for removing burrs of high hardness and high toughness metal parts, and can be defined in specific parts of the workpiece. It is a complicated internal cavity part that is difficult to handle by hand and has poor accessibility, especially the burr of intersecting line of intersecting holes. Suitable for post-heat treated and finished parts without damaging the finished surface.
The main technical features of electrochemical deburring machine tools:
1 Suitable for internal burrs that are difficult to remove, heat treated and finished parts.
2 Small rounded corners may be formed at the intersections or edges of the holes.
3 does not damage the finished surface.
4 Deburring efficiency is high, only 2~3 minutes per processing cycle.
5 Multiple pieces can be removed at the same time.
Suzhou rate Erjie Electromechanical Technology Co., Ltd. provides multi-axis CNC EDM small hole machine, multi-axis CNC EDM micro-hole machine, high-speed EDM punching machine, ECM electro-deburring, ECM electrochemical deburring machine, EDM breaking tap Machine, CNC EDM wire cutting machine, EDM machine technology services, the company can tailor a variety of EDM machines according to customer's special requirements, while providing customers with a complete set of electrical processing solutions. Corporate website
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