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Deburring is the technique that is used to remove unwanted burrs that are created during machining projects. Burrs are small pieces of materials that are left behind after a modification process has been performed. Such processes include drilling, tool sharpening and engraving. The most common technique used during this process is the manual technique. Burrs that occur in drilled holes can play havoc with fasteners and other anchoring items. These problems can weaken the overall integrity of the hole, shortening the lifespan. Other issues that can occur include increased risk of corrosion, stress cracks, and other problems, that eventually will lead to material failure. Since there are so many different ways for removing burrs, only four techniques are going to be covered. The manual technique is the most popular because it requires a low cost tool for removing the abrasion. Before beginning, it is important to use the proper blade for the job. Once the correct blade has been installed the tool can be turned on. Be careful not to lose control while operating the tool, and move it over the affected area in slow passes until the burr has been removed. Electrochemical is another method that is used for burr removal. This method is used for hard to reach areas that require precision machining. This procedure uses a glycol or salt solution along with electricity when removing the burr. The process generally takes five to ten seconds depending on the burr size and location. Thermal energy method is another procedure that is used when removing burrs from machined parts. This method is the quickest method of all the others requiring 20 milliseconds to complete. Another cool thing about is that this process can remove multiple burrs from multiple locations at one time. To perform this operation, the part is put into an explosion proof environment. Once everything is secure, the air is removed from the chamber and replaced with an oxygen and fuel mixture. This process burns off the burrs in one fluid motion and does not harm the piece in any way. Cryogenic is a process used to remove burrs from plastic and die cast metal pieces. The process uses liquid nitrogen or dry ice to freeze the item to the point of becoming brittle. The item is then sent into a tumbling motion that removes the burrs. The process was introduced in the 1960s for removing imperfections from plastic and rubber. In order to help minimize the chance of burrs forming, take time to consider the material being used, the machining technique, and the design that is being used. Working to avoid the formation of burrs will save time in the end. If burrs do occur, following removal steps will make it easy to get the part cleaned up and ready to go in no time. Established in 1967, COAST METAL CUTTING offers a complete machining, deburring and metal cutting service. Visit us online (http://www.coastmetal.com/)
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