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The Analysis of Destruction of Abrasive Grains During the Grinding of Wood and Wood Materials

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A.V. Sergeevichev

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Grinding is carried out for the purpose of abrasion of a surface after the previous operations and of attaching he demanded roughness, and also removal of a layer of wood or wood material by it for providing the given size of a product. Studying and definition of the surface energy of wood and wood materials are actual problems of the modern woodworking, connected to formation of new surfaces as a result of technological processes. The studied processing of details by abrasive tools according to the description and model operation is the most composite. They are characterized by developed existential communications which detailed studying has to be carried out on the basis of systems approach. Regularities of a wear of the abrasive tool are directly connected with work of simple abrasive grains. The phenomenon of adhesion, diffusion, abrasive destruction, plastic flow of the shallowest surface layers softened under the influence of high contact temperatures and pressure, chemical impact on an abrasive of a surrounding medium and the processed material are fundamentally of the mechanism of a wear. Under the influence of mechanical and temperature stresses there is a cracking fissuring, shear of trimming blades, microchipping from a linking of separate abrasive grains and the whole complexes. The probability of an evulsion of abrasive grain and its destructions with increase in depth of cutting considerably increases in the tool. In this case almost all abrasive grains reach the maximal depth of cutting. At tops of abrasive grains there are considerable platforms of a wear. On the basis of the analysis of regularities of work of simple abrasive grains of the tool from the moment of their activation until destruction or an evulsion from a sheaf it is possible to establish interrelation of a wear of the abrasive tool with a wear and regularities of work of simple abrasive grains that is an integral part of possibility of perfecting of designs of the tool.


A.V. Sergeevichev, Candidate of Engineering, Associate Professor

Authors job

St. Petersburg state forest technical university under name of S. M. Kirov, Institutsky per., 5, St. Petersburg, 193232, Russia; e-mail:


grinding of wood and wood materials, a roughness of the processed surface, cutting, simple abrasive grain.


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Received on December 15, 2014

The Analysis of Destruction of Abrasive Grains During the Grinding of Wood and Wood Materials