The characterization parameters of the texture after honing
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The resource of aggregates depends on the operating conditions of the assemblies consisting of interacting parts that form a friction pairs. The conditions for contacting are determined by the parameters of the roughness of friction surfaces formed by finishing machining. Honing is one of the most common finishing processes. In the design and technological documentation for the appointment of honing operations, the macro parameters (correction of form) and microgeometry are normalized. Traditionally, the term “roughness” refers to a group of parameters characterizing microgeometry which currently defined by the term “texture” of the surface in modern standards. Modernization of production using the concept “Industry 4.0”, is outlined in the strategy of scientific and technological development of the Russian Federation as “the transition to advanced digital, intelligent production technologies”. For the field of “Machine-building technologies” this priority calls for the need for reliable models reflecting technological processes, including objective functions and their evaluation (shaping - shape inaccuracy, roughness - roughness parameters) of each technological process to include these processes in a single state information system control over production chains, currently being developed in the Ministry of Industry and Trade of the Russian Federation. The economic feasibility of the development of this direction is associated with an increase in the contribution of the state (state-owned companies) to GDP from 35 % in 2005 to 70 % in 2015, according to the data of the Federal Antimonopoly Service of the Russian Federation. In this article is considered what parameters of microgeometry are used by researchers to evaluate the resulting surface after honing during experimental studies and when constructing models and what parameters are the priority for machine-building enterprises. A review of publications in the field of honing is presented, including an analysis of texture parameters normalized by researchers. The main ways of development of honing are considered, in part of the normalization of the parameters obtained after processing.
Roughness, texture, surface, honing
Короткий адрес: https://sciup.org/147151754
IDR: 147151754 | DOI: 10.14529/engin170303