Which abrasive stones (chips) should be used for deburring?

The selection of the most suitable abrasive stone for the product is made according to two different criteria.

1- The raw material of the product or the type of metal used:

Stones with different abrasiveness are produced for metals with different hardness. For example, plastic abrasive stones are suitable for low strength metal products such as aluminum, while ceramic abrasive stones should be used for high strength metals such as stainless steel. Thus, the proportion of application time x in the surface accuracy equation is set correctly. Otherwise, high abrasive stones can have negative results on low strength metals, while low abrasive stones create a very long process time in high strength products.

2- Geometric structure of the product

The products naturally have very variable geometric structures, so the geometric structures of the abrasive stones also vary widely. The most important issue during the process is that the stone can reach all surfaces of the product. Thus, the most accurate result is obtained.

What fluids should be used in deburring?

The liquids used in the deburring process are of two types and are selected depending on the raw material of the products as in the selection of abrasive stones. These are “degreasing” and “deburring” liquid. Surface treatment fluids have different pH and acidity levels, but they also contain anti-corrosion additives. As the pH rises, the effect of the liquid changes on the product. That’s why choosing the right fluid is so important. Water is the third liquid used at every stage. Also, the last rinse is done only with water. Surface treatment fluids do not leave residue or residue on the product thanks to their special ingredients.

How to determine the deburring process time?

The deburring process time is determined by checking the products that are applied for the first time period during the process. Since the burrs are of varying levels, each different product is processed for different times, so time should be checked at the first application of each new product. The surface treatment application continues until all burrs disappear and the surface of the product reaches the desired homogeneous structure. For example, with the controls performed every 15 or 30 minutes, the final processing time of the product can be determined. The processing time determined afterward can be repeatedly applied to other products of the same type and type.

How is polishing done?

The polishing stage is the third surface treatment application. The products that come out of the burring process are subjected to the polishing process and the surface that is smoothed is also polished. Many products in different sectors are used quite often because they are polished and presented to the end-user or prepared for the next process. The polishing phase is also an application that supports the product in terms of cosmetics. Polishing has become mandatory before some coating processes. The polishing process consists of two stages, polishing, and rinsing. During the process, polishing stones called “Porcelain” are used. Porcelain stones, which have many types in size and shape, are selected again according to the geometric structure and size of the product. Although porcelain polishing stones have very low deburring properties, their lifespan is many times more than the deburring stones. KAYAKOCVIB deburring fluids also have a polishing effect. Therefore, the same surface treatment fluid is used in both deburring and polishing processes. The polishing phase is completed in a much shorter time than the deburring phase as the processing time. The polished products are transferred to the next and final stage, ‘Drying’.

How is the drying process done?

The drying stage is the fourth surface treatment application and the final stage. The products that are degreased, burrs and polished differ depending on the raw material of the product and subsequent application, in order to protect it from corrosion and other effects, it is cleaned from water, moisture and the process is terminated. In some coating applications, products that come out of the polishing by skipping the drying process are sent directly to the coating. The drying process is carried out in the dryer vibration machine with the help of corn granules (corn cob granules) and resistances. Dryer Vibratory Machine transfers the granules to the specified heat thanks to its resistance. Thanks to the moisture absorption feature of the granules, all surfaces of the product are dehumidified. The moisture trapped in the granules is clouded thanks to the heat and the granules are dried again. Granules also have two additional features, such as light degreasing and polishing.

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