Abstract
In order to improve the contact performance properties, we present optimization of flat grinding of titanium parts in accordance with two parameters: the relative bearing length of the profile and the relative bearing part of the parts’ surface that allow to assess the quality of the surface at the micro- and macro-scale. It is established that in order to achieve the set goal, grinding should be carried out with a minimum lateral feed ratesΠ= 2.0 mm/double pass, and the remaining technological parameters are selected depending on the rigidity of the parts and the direction of its variation.
Highlights
The most important operational properties of machine parts, such as wear resistance, contact stiffness, etc., depend significantly on the contact interaction of their working surfaces, formed at the final stage of processing, including grinding
The reason for this is related to the sticking of chips on the working surfaces of abrasive tools made of silicon carbide and electrocorundum
A radical solution to this problem is the use, when grinding titanium alloys, of highly porous wheels made of cubic boron nitride and silicon carbide [1]
Summary
The most important operational properties of machine parts, such as wear resistance, contact stiffness, etc., depend significantly on the contact interaction of their working surfaces, formed at the final stage of processing, including grinding. Grinding of parts made of titanium alloys, which are widely used in aeronautics and space technology, shipbuilding, oil and chemical engineering for manufacture of critical products, is used much less often than other structural materials The reason for this is related to the sticking of chips on the working surfaces of abrasive tools made of silicon carbide and electrocorundum. In connection with the foregoing, this research is devoted to optimizing the parameters of the relative bearing part and the relative bearing length of the surface profile in the case of flat grinding of titanium parts of various rigidity by a high-porous wheel of cubic boron nitride using the simplex-planning method
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