Mechanical parts deburring methods
1 electrolytic deburring
This is to use electrical energy, remove dissolved anode deburring. Parts and dc power of positive for anode, forming conveyor parts and dc power anode polarization between connected to the cathode, maintain a space, let the electrolyte circulating. When the anode and Yin level into the solution and dc, anticathode surface electrochemical reaction occurs, the surface is dissolved metal parts with sticky liquid electrolyte concentration in parts formed on the surface of the DiAo, high corrosion resistance and smaller, And in parts surface, deburring prominent in under the influence of the temperature of liquid membrane, difficulty in forming, after electrify powerline heavily focused on the part of the cathode recently deburring away with quickest speed to dissolve deburring, until the burr dissolve, edge, which gradually formed a rounded deburring.these pins.
Can use electrolytic deburring conveyor parts. When the production batch is not big, can become dc and ac rectifier made simple equipment. According to the structure, manufacture and parts parts of similar shape (special jig), brass or a cathode copper conducting good materials etc, processing parts with epoxy resin were quarantined. Common electrolyte has NaNO2 > and NaNO NaCl, etc > 3 solution.
This method is suitable for nonferrous metals, ferrous parts, especially suitable for complicated shape with mechanical parts and manual methods to remove, the hole, cross hole and the inner surface of burr, can remove hardened parts, such as titanium, nickel, molybdenum, quenching parts burr.
2 chemical deburring
Will clean conveyor parts in chemical solution (50 ° c), the surface of trolley conveyor metal parts with ions to solution. These ions together in the surface of workpiece, chemical reaction form a layer of resistance, the mucous membrane, conductivity small workpiece surface corrosion protection, burr, protruding from the surface chemistry will burr removed. Processing, as long as a tank. According to the different deburr, workpiece materials with different chemical solution. conveyor parts, hydrochloric acid, phosphoric acid, can be sulfuric acid, hydrochloric acid and the proportion of water, etc. Chemical deburring applicable to small metal parts, can remove thickness is less than the tiny burrs 0.07 mm.
3 high deburring
First will need to tighten the burr seal conveyor parts on the pressure and then into hydrogen gas mixture must, by spark ignition, mixed gas explosion, and give off a lot of transient temperature and heat up to three 300 degrees above. Due to the time is very short, parts and components, burr was burned in other parts of the time change. When the explosion, high-pressure gases into the hole, all parts of cross holes, grooves, deep hole etc all can be burned the overhead trolley conveyor parts. Need to have special high temperature deburring machine.
This deburring is applicable to any structure shape of metal, plastic, rubber parts, especially with complicated shapes and manual and remove burr parts. The operating process, according to the different parts of the material selection of appropriate oxyhydrogen mixing ratio (sealed chamber of hydrogen and oxygen Moore), steel, alloy steel, copper is not sensitive to the mixture mixing ratio, hydrogen in 2-2 scope May 2, the slightly higher than aluminum. Secondly, we should choose to seal indoor air pressure (pressure) mixture, generally speaking, steel, alloy steel, high pressure air, brass alloy lower. Parts in deburring, must clean and dry, Deburring, in phosphoric acid mixture with processing, remove oxidation film.
