Vibromagnetic abrasive treatment and its dependence on some parameters
DOI:
https://doi.org/10.31498/2225-6733.38.2019.181403Keywords:
overhard ceramics, vibro magnetic treatment, working environment, ferromagnetic abrasive material, magnetic force, electromagnet, grittiness of powder, artificial diamonds, magnetic inductionAbstract
Development of modern mechanical engineering, instrument-making, machine-tool manufacture involves the usage of qualitatively new materials, that make it possible to improve the quality, longevity of instrument and productivity of production treatment. One of such materials is cubic boron nitride (CBN) – overhard ceramics that can be used and is already used in treatment of machine parts and mechanisms. This ceramics is considered oxygen-free. Unique properties of ceramics allow to use it as blade tools cutting edges. Since the durability of ceramics is not inferior to that of the artificial diamond, its treatment is a problem that the new vibromagnetic abrasive.method of treatment is called to decide. This method can replace such a labour intensive method as lapping, but with a more evenly treated surface. The method will be used for treatment the plates from overhard ceramics, intended for metal-cutting instruments. But it can also be used for treatment of any excessive-in-size parts from overhard ceramics. Such a treatment is based on the partial and successive tearing away particles of ceramics at recurrently-forward motion of a part. The magnetic field will retain ferromagnetic material in stiff enough position keeping it close to the abrasive. To increase the treatment intensity artificial diamond and granules of Аl2O3 are added to the abrasive environment. The article considers the essence of new enough method of abrasive treatment of unsupported parts from overhard ceramics. The method includes the signs of oscillation treatment that results from oscillation force and adds to magnetically-abrasive treatment, that has been widely studied. The dependence of vibromagnetic abrasive method on some parameters has been shown. It is assumed that the new method substitutes for lapping of parts from overhard ceramicsReferences
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