Developer: Saint Petersburg Mining University
Industry
Mechanical Engineering, Metalworking, Metallurgy
Project Research Team
Head: Vyacheslav Viktorovich Maksarov Research Team: Dmitry Yuryevich Timofeev, Alexander Evgenyevich Efimov, Taras Sergeevich Golikov
Scientific novelty
Ensuring micro- and macro-geometric parameters of precision products made of corrosion-resistant, heat-resistant, and titanium alloys during external turning and internal boring. External surfaces are processed using a local physical impact method. Internal surfaces are processed with a boring bar featuring adjustable stiffness. The bar tension force is selected for specific combinations of dissimilar metals in the product.
Advantages
Practical application of the method of preliminary local physical impact on the machined surface followed by mechanical processing allows for a 29-36% reduction in the self-oscillation process amplitude and solves the problem of continuous chip segmentation on CNC machines, thereby improving the quality indicators of the external surfaces of precision products made of dissimilar metals; the practical use of an anti-vibration boring bar with a regulated degree of stress-strain state allows for a 25% reduction in vibration activity when boring internal surfaces, achieving the required surface roughness in products welded from dissimilar steels.
Commercial implementation
At machine-building enterprises to achieve specified surface roughness and shape accuracy for precision products; enterprises in the machine-building complex - mining, energy, shipbuilding, and other industries manufacturing precision products from dissimilar metals.
Development Stage
Prototype
Required investment
185,000.00 RUB
Investor's share in the project
50%
Protection documents
Participation in exhibition and fair events
VI National Exhibition "VUZPROMEXPO-2019"
Investments
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