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What is the method for deburring in processing machinery?
- Categories:Industry News
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- Time of issue:2021-11-17
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(Summary description)Nowadays, as various industries pay more and more attention to burr removal, the burr is a small thing in CNC precision parts processing, but it directly affects the quality of the product. Therefore, deburring methods are also emerging one after another. Electrolytic deburring is suitable for removing burrs in hidden parts of intersecting holes or parts with complex shapes, with high production efficiency, and the deburring time is generally only a few seconds to tens of seconds. This method is often used for deburring of gears, splines, connecting rods, valve bodies and crankshaft oil passage holes, etc., as well as for rounding sharp corners. The disadvantage is that the vicinity of the burr of the parts is also subjected to electrolysis, the surface will lose its original luster, and even affect the dimensional accuracy.
What is the method for deburring in processing machinery?
(Summary description)Nowadays, as various industries pay more and more attention to burr removal, the burr is a small thing in CNC precision parts processing, but it directly affects the quality of the product. Therefore, deburring methods are also emerging one after another. Electrolytic deburring is suitable for removing burrs in hidden parts of intersecting holes or parts with complex shapes, with high production efficiency, and the deburring time is generally only a few seconds to tens of seconds. This method is often used for deburring of gears, splines, connecting rods, valve bodies and crankshaft oil passage holes, etc., as well as for rounding sharp corners. The disadvantage is that the vicinity of the burr of the parts is also subjected to electrolysis, the surface will lose its original luster, and even affect the dimensional accuracy.
- Categories:Industry News
- Author:
- Origin:
- Time of issue:2021-11-17
- Views:0
Nowadays, as various industries pay more and more attention to burr removal, the burr is a small thing in CNC precision parts processing, but it directly affects the quality of the product. Therefore, deburring methods are also emerging one after another. Electrolytic deburring is suitable for removing burrs in hidden parts of intersecting holes or parts with complex shapes, with high production efficiency, and the deburring time is generally only a few seconds to tens of seconds. This method is often used for deburring of gears, splines, connecting rods, valve bodies and crankshaft oil passage holes, etc., as well as for rounding sharp corners. The disadvantage is that the vicinity of the burr of the parts is also subjected to electrolysis, the surface will lose its original luster, and even affect the dimensional accuracy.
There are mainly the following types of trimming/deburring commonly used today:
1. The traditional methods of manual deburring are steel files, sandpaper, and grinding head grinding; and the trimming knife gradually replaces these traditional methods, which is simple and convenient to use, does not require technical processing, saves costs and is environmentally friendly.
2. Chemical deburring. Using the principle of electrochemical reaction, the parts made of metal materials can be automatically and selectively deburred. It can be widely used in the deburring processing of pump bodies, valve bodies, connecting rods, plunger needle valve couplers and other parts of different metal materials in pneumatic, hydraulic, engineering machinery, nozzle oil pumps, automobiles, engines and other industries. Ideal for hard-to-remove internal burrs, heat-treated and finished parts.
3. Electrolytic deburring is an electrolytic machining method that uses electrolysis to remove burrs from metal parts, abbreviated as ECD in English. Fix the tool cathode (usually made of brass) near the burr part of the workpiece, with a certain gap (usually 0.3 to 1 mm) between the two. The conductive part of the tool cathode is aligned with the edge of the burr, and the other surfaces are covered with an insulating layer, so that the electrolysis is concentrated on the burr part. During processing, the tool cathode is connected to the negative pole of the DC power supply, and the workpiece is connected to the positive pole of the DC power supply. A low-pressure electrolyte (usually sodium nitrate or sodium chlorate aqueous solution) with a pressure of 0.1 to 0.3 MPa flows between the workpiece and the cathode. When the DC power supply is turned on, the burr will be removed by anode dissolution and taken away by the electrolyte. The electrolyte is corrosive to a certain extent, and the workpiece should be cleaned and rust-proofed after deburring.
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