The Impact of the Lubricant Dose on the Reduction of Wear Dies Used in the Forging Process of the Valve Forging
The paper presents the results of research on the influence of the settings of lubrication and cooling system parameters (solenoid valve opening time and lubricant feed pressure in terms of its quantity) in order to select the optimal lubricating conditions and thus reduce the wear of the dies used...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-01-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/14/1/212 |
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| author | Łukasz Dworzak Marek Hawryluk Marta Janik |
| author_facet | Łukasz Dworzak Marek Hawryluk Marta Janik |
| author_sort | Łukasz Dworzak |
| collection | DOAJ |
| description | The paper presents the results of research on the influence of the settings of lubrication and cooling system parameters (solenoid valve opening time and lubricant feed pressure in terms of its quantity) in order to select the optimal lubricating conditions and thus reduce the wear of the dies used in the first forging operation of the valve forging made of high-nickel steel. Based on the observation of lubrication in the industrial process, it was found that a significant part of the lubricant fails to reach the die cavity, reaching the outside of it, which causes die wear due to seizure resulting from adhesion of the forging material to the tool surface as well as high lubricant consumption and dirt in the press chamber. The authors proposed their own mobile lubricating and cooling system, which allows for a wide range of adjustments and provided with automatic cleaning procedures of the entire system, unlike the fixed lubrication system used so far in the industrial process. First, tests were carried out in laboratory conditions to determine the highest wettability and the lubricant remaining inside the tool cavity. These tests determined the lubrication system parameter settings that ensured that the greatest amount of lubricant remains in the cold die cavity without the forging process. Then, to verify the obtained results, tests were carried out in the industrial process of hot die forging of valve forgings for short production runs of up to 500 forgings. The results were compared with the measurement of changes in the geometry of tools and forgings based on 3D scanning and surface topography analysis with the use of SEM (Scanning Electron Microscope). For the best results (the variant of the setting of the dose and the time of exposure to lubricant), the forging process was carried out with the use of a new tool up to the maximum service life. |
| first_indexed | 2024-03-10T13:30:29Z |
| format | Article |
| id | doaj.art-e3202767b04641ec91c8527dc2eb4694 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T13:30:29Z |
| publishDate | 2021-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-e3202767b04641ec91c8527dc2eb46942023-11-21T08:07:10ZengMDPI AGMaterials1996-19442021-01-0114121210.3390/ma14010212The Impact of the Lubricant Dose on the Reduction of Wear Dies Used in the Forging Process of the Valve ForgingŁukasz Dworzak0Marek Hawryluk1Marta Janik2Department of Metal Forming, Welding and Metrology, Wroclaw University of Science and Technology, Lukasiewicza Street 5, 50-370 Wroclaw, PolandDepartment of Metal Forming, Welding and Metrology, Wroclaw University of Science and Technology, Lukasiewicza Street 5, 50-370 Wroclaw, PolandMahle Poland, Mahle 6, 63-700 Krotoszyn, PolandThe paper presents the results of research on the influence of the settings of lubrication and cooling system parameters (solenoid valve opening time and lubricant feed pressure in terms of its quantity) in order to select the optimal lubricating conditions and thus reduce the wear of the dies used in the first forging operation of the valve forging made of high-nickel steel. Based on the observation of lubrication in the industrial process, it was found that a significant part of the lubricant fails to reach the die cavity, reaching the outside of it, which causes die wear due to seizure resulting from adhesion of the forging material to the tool surface as well as high lubricant consumption and dirt in the press chamber. The authors proposed their own mobile lubricating and cooling system, which allows for a wide range of adjustments and provided with automatic cleaning procedures of the entire system, unlike the fixed lubrication system used so far in the industrial process. First, tests were carried out in laboratory conditions to determine the highest wettability and the lubricant remaining inside the tool cavity. These tests determined the lubrication system parameter settings that ensured that the greatest amount of lubricant remains in the cold die cavity without the forging process. Then, to verify the obtained results, tests were carried out in the industrial process of hot die forging of valve forgings for short production runs of up to 500 forgings. The results were compared with the measurement of changes in the geometry of tools and forgings based on 3D scanning and surface topography analysis with the use of SEM (Scanning Electron Microscope). For the best results (the variant of the setting of the dose and the time of exposure to lubricant), the forging process was carried out with the use of a new tool up to the maximum service life.https://www.mdpi.com/1996-1944/14/1/212lubricationwearcooling–lubrication systemvalve forging3D scanning method |
| spellingShingle | Łukasz Dworzak Marek Hawryluk Marta Janik The Impact of the Lubricant Dose on the Reduction of Wear Dies Used in the Forging Process of the Valve Forging Materials lubrication wear cooling–lubrication system valve forging 3D scanning method |
| title | The Impact of the Lubricant Dose on the Reduction of Wear Dies Used in the Forging Process of the Valve Forging |
| title_full | The Impact of the Lubricant Dose on the Reduction of Wear Dies Used in the Forging Process of the Valve Forging |
| title_fullStr | The Impact of the Lubricant Dose on the Reduction of Wear Dies Used in the Forging Process of the Valve Forging |
| title_full_unstemmed | The Impact of the Lubricant Dose on the Reduction of Wear Dies Used in the Forging Process of the Valve Forging |
| title_short | The Impact of the Lubricant Dose on the Reduction of Wear Dies Used in the Forging Process of the Valve Forging |
| title_sort | impact of the lubricant dose on the reduction of wear dies used in the forging process of the valve forging |
| topic | lubrication wear cooling–lubrication system valve forging 3D scanning method |
| url | https://www.mdpi.com/1996-1944/14/1/212 |
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