Technological methods of improving the quality and productivity of processing car engine parts
Problem. The most high-precision parts of the car engine are camshaft and crankshaft, parts that require two-sided processing of the end surfaces: piston pins, valve springs. Traditional processing methods are used in their manufacture and repair. Therefore, taking into account the large volumes of...
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| Format: | Article |
| Language: | English |
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Kharkiv National Automobile and Highway University
2023-01-01
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| Series: | Avtomobilʹnyj Transport (Harʹkov) |
| Subjects: | |
| Online Access: | https://dspace.khadi.kharkov.ua/handle/123456789/16062 |
| _version_ | 1797309644323946496 |
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| author | Kalchenko Volodymyr Venzhega Volodymyr Kuzhelnyi Yaroslav Klymenko Valeriy |
| author_facet | Kalchenko Volodymyr Venzhega Volodymyr Kuzhelnyi Yaroslav Klymenko Valeriy |
| author_sort | Kalchenko Volodymyr |
| collection | DOAJ |
| description | Problem. The most high-precision parts of the car engine are camshaft and crankshaft, parts that require two-sided processing of the end surfaces: piston pins, valve springs. Traditional processing methods are used in their manufacture and repair. Therefore, taking into account the large volumes of car production, the improvement of existing and development of new processing methods is
very important. Goal. The purpose of this work is the analysis and improvement of existing methods and the implementation for new ones of processing the specified parts to increase the productivity and accuracy of their processing. Methodology. The processing of support necks and cams is expedient to
be carried out in one installation during deep high-speed grinding with crossed axes of the circle and camshaft due to stabilization of the cutting depth and feed along the contour with uneven rotation of the part. The method of high-speed milling of camshaft cams with crossed axes of the tool and parts on CNC machines is also promising. Root and connecting rod necks of crankshafts can be processed in one installation by deep high-speed grinding with crossed axes of the circle and the part due to stabilization of the depth of cutting and feed along the contour with uniform rotation of the part. For end surfaces, it is possible to introduce single-pass processing on double-sided end grinding machines
with oriented grinding wheels with calibration areas. Results. The obtained results indicate a 25-30% increase in productivity and processing accuracy of the specified parts. Originality. It is used when processing the effect of the intersection of the axes of the tool and the part and carrying out a special
correction of the tool, which allows to obtain a calibration area. Practical value. The proposed methods improve the parameters of accuracy, roughness and productivity of processing, which is an important scientific and practical task, whose solution will allow to increase the service life of car components and assemblies, reduce the cost of their production, and raise the level of competitiveness of products and services. |
| first_indexed | 2024-03-08T01:30:22Z |
| format | Article |
| id | doaj.art-07083e9efb334b9b83050b79d803a462 |
| institution | Directory Open Access Journal |
| issn | 2219-8342 |
| language | English |
| last_indexed | 2024-03-08T01:30:22Z |
| publishDate | 2023-01-01 |
| publisher | Kharkiv National Automobile and Highway University |
| record_format | Article |
| series | Avtomobilʹnyj Transport (Harʹkov) |
| spelling | doaj.art-07083e9efb334b9b83050b79d803a4622024-02-14T13:49:37ZengKharkiv National Automobile and Highway UniversityAvtomobilʹnyj Transport (Harʹkov)2219-83422023-01-0152253110.30977/AT.2219-8342.2023.52.0.03Technological methods of improving the quality and productivity of processing car engine partsKalchenko Volodymyr0https://orcid.org/0000-0002-9072-2976Venzhega Volodymyr1https://orcid.org/0000-0002-8857-349XKuzhelnyi Yaroslav2https://orcid.org/0000-0002-9850-7875Klymenko Valeriy3https://orcid.org/0000-0002-7399-0397Chernihiv Polytechnic National UniversityChernihiv Polytechnic National UniversityChernihiv Polytechnic National UniversityKharkiv National Automobile and Highway UniversityProblem. The most high-precision parts of the car engine are camshaft and crankshaft, parts that require two-sided processing of the end surfaces: piston pins, valve springs. Traditional processing methods are used in their manufacture and repair. Therefore, taking into account the large volumes of car production, the improvement of existing and development of new processing methods is very important. Goal. The purpose of this work is the analysis and improvement of existing methods and the implementation for new ones of processing the specified parts to increase the productivity and accuracy of their processing. Methodology. The processing of support necks and cams is expedient to be carried out in one installation during deep high-speed grinding with crossed axes of the circle and camshaft due to stabilization of the cutting depth and feed along the contour with uneven rotation of the part. The method of high-speed milling of camshaft cams with crossed axes of the tool and parts on CNC machines is also promising. Root and connecting rod necks of crankshafts can be processed in one installation by deep high-speed grinding with crossed axes of the circle and the part due to stabilization of the depth of cutting and feed along the contour with uniform rotation of the part. For end surfaces, it is possible to introduce single-pass processing on double-sided end grinding machines with oriented grinding wheels with calibration areas. Results. The obtained results indicate a 25-30% increase in productivity and processing accuracy of the specified parts. Originality. It is used when processing the effect of the intersection of the axes of the tool and the part and carrying out a special correction of the tool, which allows to obtain a calibration area. Practical value. The proposed methods improve the parameters of accuracy, roughness and productivity of processing, which is an important scientific and practical task, whose solution will allow to increase the service life of car components and assemblies, reduce the cost of their production, and raise the level of competitiveness of products and services.https://dspace.khadi.kharkov.ua/handle/123456789/16062: camshaftcrankshaftpiston pinsvalve springshigh-speed millingone-pass machining |
| spellingShingle | Kalchenko Volodymyr Venzhega Volodymyr Kuzhelnyi Yaroslav Klymenko Valeriy Technological methods of improving the quality and productivity of processing car engine parts Avtomobilʹnyj Transport (Harʹkov) : camshaft crankshaft piston pins valve springs high-speed milling one-pass machining |
| title | Technological methods of improving the quality and productivity of processing car engine parts |
| title_full | Technological methods of improving the quality and productivity of processing car engine parts |
| title_fullStr | Technological methods of improving the quality and productivity of processing car engine parts |
| title_full_unstemmed | Technological methods of improving the quality and productivity of processing car engine parts |
| title_short | Technological methods of improving the quality and productivity of processing car engine parts |
| title_sort | technological methods of improving the quality and productivity of processing car engine parts |
| topic | : camshaft crankshaft piston pins valve springs high-speed milling one-pass machining |
| url | https://dspace.khadi.kharkov.ua/handle/123456789/16062 |
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