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Cartridge Rolls For Deburring

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Written by Hispanic

Wednesday, 02 April 2008

by Hispanic

Cartridge rolls, one of several types of deburring tools, are manufactured by wrapping abrasive cloth materials around appropriately-sized mandrel. Available with aluminum oxide grain, silicon carbide grain or zirconia/alumina grain, units are suited for polishing, blending, deburring and flash removal operations. Fresh abrasive grain is exposed as outer layer of cartridge roll wears away. Cartridge rolls are available in 1/8-11/2 in. diameter and 3/4-2 in. length with grits from 36-320.

Such cartridge rolls are designed to be sturdy and long-lasting. They can be straight, half taper, full taper and sidewall. They are often attached to a hand-held deburring tool. Such rolls are effective in removing edge breaking and machine tool marks.

Burrs are the normal by product of the stamping process. Burrs are often not acceptable, usually for safety reasons, either for handling or for product safety (burrs cutting into insulation, or mechanical chafing). On the other hand, deburring is done by tumbling parts in a barrel or a vibratory bowl, along with finishing media. Ceramic media is often used for steels. For softer materials, plastic media, walnut shells etc can be used. This type of deburring is usually confined to unfinished materials. For materials that are already finished, such as pre-plated or pre-painted materials, other forms of deburring such as belt sanding or hand filing will have to be done with the associated higher costs.

Speaking of the other forms of deburring, there are many methods to achieving deburring; hand deburring, semiautomatic deburring, abrasive flow machining, thermal energy method, electrochemical machining, high pressure deburring, and so on and so forth. Nevertheless, only hand and semiautomatic deburring involves cartridge rolls, and such instances involve repetitive grinding and filing motion.

Take note that using cartridge rolls may take extra or even more effort. The process must be performed in a controlled or steady manner. Or else, the part or material will be thrown, which can cause you an accident or injury. Also, always remember to use fresh rolls. You have to change them before they wear out.

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