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Several ways of deburring CNC machining precision parts
Date: 2022-09-15
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Several ways of deburring CNC machining precision parts

Several ways of deburring CNC machining precision parts

1. The traditional way of deburring parts by hand is to use steel files, sandpaper, grinding and polishing; and the trimming knife gradually replaces these traditional methods, which is easy to use, does not require technical processing, saves costs, and is environmentally friendly.

2. Chemical deburring: Through the principle of electrochemical reaction, the deburring of precision machined metal parts can be automatically and selectively completed. It can be widely used for deburring metal materials of pumps, valves, connecting rods, piston-needle coupling parts and other parts in different industries such as pneumatic, hydraulic, mechanical engineering, oil pumps, automobiles, and engines. Ideal for hard-to-remove internal burrs, heat treated and finished parts.

3. Electrolytic deburring: It is an electrolytic machining method that uses electrolysis to remove metal burrs, the English abbreviation ECD. The tool cathode (usually brass) has a fixed location near the workpiece burr, both in a gap (usually 0.3 to 1 mm). 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, which is mainly used for electrolytic deburring.

When the cathode of the machining tool is connected to the negative pole of the DC power supply, the workpiece is connected to the positive pole of the DC power supply. A low-pressure electrolyte (usually an aqueous solution of sodium nitrate or sodium chlorate) at a pressure of 0.1 to 0.3 MPa flows between the workpiece and the cathode. When the DC power supply is connected, burrs will be generated, and the anode will be dissolved and removed and taken away by the electrolyte. There is a certain corrosive electrolyte, the workpiece should be cleaned, deburred and rust-proof.

Electrolytic deburring is suitable for removing cross holes in hidden parts of parts or burrs on parts with complex shapes. The production efficiency is high, and the deburring time is usually only a few seconds to tens of seconds. This method is often used for deburring and rounding of gears, splines, connecting rods, crankshaft oil passage orifices, etc. The disadvantage is that the nearby burrs are also electrolyzed, the surface will lose its luster, and even affect the dimensional accuracy, and the deburring time is usually only a few seconds to tens of seconds.

This method is often used for deburring and rounding of gears, splines, connecting rods, crankshaft oil passage orifices, etc. The disadvantage is that the nearby burrs are also electrolyzed, the surface will lose luster, and even affect the dimensional accuracy. Deburring time is usually only a few seconds to tens of seconds. This method is often used for deburring and rounding of gears, splines, connecting rods, crankshaft oil passage orifices, etc. The disadvantage is that the nearby burrs are also electrolyzed, the surface will lose luster, and even affect the dimensional accuracy.

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