Deburring is a finishing method that is designed to remove ragged edges, also known as burrs, from metal, plastic or wooden objects that have been manufactured in some way. The deburring process makes the parts smooth by grinding, sanding or polishing away the burrs. Deburring equipment is a necessary part of the industrial process. Without deburring, objects are left with jagged edges; this can create potential for accidents. Deburring may be done to ensure that the products are of high quality, and to make certain that all parts function properly. Deburring machines are pieces of industrial equipment that removes the burrs. They work so the products are not only aesthetically pleasing but also perfectly smooth for quality and function.
There are different types of industrial machines that can complete the deburring process. Tumblers are one of the most widely used machines for deburring. Tumblers are machines that hold many parts as well as some type of wet or dry media. The tumbler will rotate like a mixing drum on a cement truck to work the media and parts around. In doing so, the tumbler along with the chosen media buffs away the burrs. There are many different types of media that must be considered when thinking of deburring; examples are plastic media, corn cob media and ceramic media. These are used in concordance with deburring machines in order to rid parts of burrs. Deburring equipment also works on wooden parts and may be used for sanding the rough areas on wood that has been cut or ripped. Plastic manufactured parts also benefit from the deburring process. Vibratory and tumbling are the best methods for the deburring of plastic fabricated parts.
A large amount of money is spent each year on machining
costs by industrial manufacturing companies for machined parts such as
fasteners, tubes and various forgings. Additional industries that utilize
deburring machines include: electronics, for printed circuit boards (PCBs) and
other types of computer hardware; construction, for building material
applications such as tiles and marble countertops; automotive and aviation, for
transmission lines, fuel injectors, engine pistons, metal body frames and more;
and medical, for surgical instruments such as steel medical drills, implants
and dental tools. Not only used for deburring, finishing equipment can also be
referred to as vibratory finishing equipment and polishing machines, since they
can also burnish, polish, smooth and protectively coat various parts and
Deburring can be accomplished through the use of wet or dry deburring media. Deburring media refers to materials that enable burr removal while not harming the other parts of the material or part's surface. Some commonly used types of dry deburring media include ceramic media, synthetic plastic media and natural media, such as corn cob media. Possibly the most common, ceramic media are abrasive and are most often used on hard metals such as steel and stainless steel. Typically formed from silica with the addition of other abrasive elements, ceramic media are available in a variety of pre-formed shapes including cylinders, triangles, cones, wedges and ellipses. While not generally as abrasive as ceramic media, synthetic plastic media are used on softer metals and materials such as aluminum. Available in a wide variety of shapes, synthetic plastic media, also referred to as plastic grits, include polycarbonate, polyester and acrylics. Plastic media can also be wet, and are often used in tumbling barrels in this form, thus making them also referred to as tumbling media. A more environmentally-friendly type of deburring media, corn cob media can achieve very fine finishes and absorb unwanted particles such as oils, grease and dirt. Used on soft metals such as brass and bronze, corn cob media is both clean and effective. Other types of natural deburring media include walnut shells.
There are various types of automated deburring machinery including flat surface finishers, polishing lathes and abrasive belts. However, the two main categories of deburring equipment are vibratory tumblers and rotational tumblers. Vibratory finishing utilizes vibrations within drum-like enclosures, such as barrels, to create friction between the deburring media and the part requiring finishing or deburring. A common process in many industries, vibratory finishing is also referred to as mass finishing, and the various types of equipment include vibratory tumblers and parts tumblers. Widely used as a type of polishing equipment, tumblers are barrels within which parts or materials are subjected to constant vibrations and friction that continuously grind and polish away burrs. Parts tumblers are incredibly similar, but are often much larger and are specifically designed to deburr mechanical parts versus unformed materials. Rotational deburring equipment also includes tumbling barrels; however, the deburring is accomplished in a significantly different fashion. In rotational finishing, instead of vibrations the tumbling barrels are spun or rotationally moved in order to mimic the same kind of erosion that would occur naturally in the environment. Additional deburring supplies that allow for manual deburring include nylon filament brushes and cloth or rubber wheels that feature the addition of abrasive compounds in order to buff, polish and deburr various parts and materials.
Deburring is necessary for a wide variety of materials, including metal, wood and plastic. While metals and plastics will feature raised edges and other pultrusions, wood burrs typically arise in the shape of chips, shavings and splinters. The two most common methods of deburring for woodworking include sanding and filing. While vibratory and rotational or tumbling deburring remain the two most popular methods of deburring for plastics and metals, a relatively new technique is being introduced called electrochemical deburring (ECD) that can be used on metal materials. ECD is a deburring technique that utilizes electrical energy that can be controlled and thus used to selectively deburr areas or parts or materials, rather than requiring the whole part or material to be deburred in order to achieve the deburral of one area. During the process, pressured electrolyres are used to flush away the unwanted materials that have been removed by the electrical energy. In addition, the tool and the workpiece do not come into contact during the process, which is an advantage because that means that the workpiece is not exposed to any kind of mechanical or thermal stress. This type of deburring can only be done on clean, conductive materials, but is the only possible deburring method for materials that cannot otherwise be scratched or altered in any way.
Deburring Equipment - Rosler Metal Finishing USA, LLC
Deburring Equipment - Giant Finishing, Inc.
Deburring Equipment Types
Deburring Equipment Terms
any material that can be used to abrade another material. In industry
however, abrasives are
minerals from a select group of very hard minerals used to shape, finish,
polish or deburr another material. - Polishing method using a soft cloth and very fine polishing