Fractal calculation method of friction parameters: Surface morphology and load of galvanized sheet
In the forming process of galvanized sheet, the friction between the die and the blank often causes the zinc coating of galvanized sheet to peel off, scratch, and crack. The aim of this study is to evaluate and calculate the fractal characteristics of the surface morphology of galvanized sheet and t...
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De Gruyter
2021
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oai:doaj.org-article:574bfad24467488f855b57aa257f66332021-12-05T14:11:02ZFractal calculation method of friction parameters: Surface morphology and load of galvanized sheet2391-547110.1515/phys-2021-0042https://doaj.org/article/574bfad24467488f855b57aa257f66332021-07-01T00:00:00Zhttps://doi.org/10.1515/phys-2021-0042https://doaj.org/toc/2391-5471In the forming process of galvanized sheet, the friction between the die and the blank often causes the zinc coating of galvanized sheet to peel off, scratch, and crack. The aim of this study is to evaluate and calculate the fractal characteristics of the surface morphology of galvanized sheet and the effect of pressure on the interfacial friction behavior. Two steel plates, GA and GI, produced by Shanghai Baosteel Company, were used as materials to conduct tribological experiments, measure the surface profile and three-dimensional shape of the galvanized sheet, and calculate the fractal dimension and fractal roughness parameters. According to the analysis results of friction surface damage of galvanized sheet, the damage failure parameters of galvanized sheet are calculated. On this basis, according to the adhesive friction theory, the total surface friction value of galvanized sheet is obtained, and the fractal calculation model of galvanized sheet friction is established. The simulation results show that the galvanized sheet has fractal characteristics. The average values of fractal dimension and scale factor of SP781BQ alloy hot-dip galvanized sheet are 1.52 and 0.23 µm, respectively. The average fractal dimension and scale coefficient of HC420/780DPD + Z hot-dip galvanized sheet are 1.60 and 0.11 µm, respectively. The friction coefficient calculated by the proposed method is consistent with the theoretical value, and the error is less than 10%, which proves the accuracy and feasibility of the friction fractal calculation method.Yang XiaoyongJin TanDe Gruyterarticlegalvanized sheetsurface morphologypressure loadfriction parametersfractal calculationPhysicsQC1-999ENOpen Physics, Vol 19, Iss 1, Pp 375-382 (2021) |
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DOAJ |
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DOAJ |
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EN |
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galvanized sheet surface morphology pressure load friction parameters fractal calculation Physics QC1-999 |
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galvanized sheet surface morphology pressure load friction parameters fractal calculation Physics QC1-999 Yang Xiaoyong Jin Tan Fractal calculation method of friction parameters: Surface morphology and load of galvanized sheet |
| description |
In the forming process of galvanized sheet, the friction between the die and the blank often causes the zinc coating of galvanized sheet to peel off, scratch, and crack. The aim of this study is to evaluate and calculate the fractal characteristics of the surface morphology of galvanized sheet and the effect of pressure on the interfacial friction behavior. Two steel plates, GA and GI, produced by Shanghai Baosteel Company, were used as materials to conduct tribological experiments, measure the surface profile and three-dimensional shape of the galvanized sheet, and calculate the fractal dimension and fractal roughness parameters. According to the analysis results of friction surface damage of galvanized sheet, the damage failure parameters of galvanized sheet are calculated. On this basis, according to the adhesive friction theory, the total surface friction value of galvanized sheet is obtained, and the fractal calculation model of galvanized sheet friction is established. The simulation results show that the galvanized sheet has fractal characteristics. The average values of fractal dimension and scale factor of SP781BQ alloy hot-dip galvanized sheet are 1.52 and 0.23 µm, respectively. The average fractal dimension and scale coefficient of HC420/780DPD + Z hot-dip galvanized sheet are 1.60 and 0.11 µm, respectively. The friction coefficient calculated by the proposed method is consistent with the theoretical value, and the error is less than 10%, which proves the accuracy and feasibility of the friction fractal calculation method. |
| format |
article |
| author |
Yang Xiaoyong Jin Tan |
| author_facet |
Yang Xiaoyong Jin Tan |
| author_sort |
Yang Xiaoyong |
| title |
Fractal calculation method of friction parameters: Surface morphology and load of galvanized sheet |
| title_short |
Fractal calculation method of friction parameters: Surface morphology and load of galvanized sheet |
| title_full |
Fractal calculation method of friction parameters: Surface morphology and load of galvanized sheet |
| title_fullStr |
Fractal calculation method of friction parameters: Surface morphology and load of galvanized sheet |
| title_full_unstemmed |
Fractal calculation method of friction parameters: Surface morphology and load of galvanized sheet |
| title_sort |
fractal calculation method of friction parameters: surface morphology and load of galvanized sheet |
| publisher |
De Gruyter |
| publishDate |
2021 |
| url |
https://doaj.org/article/574bfad24467488f855b57aa257f6633 |
| work_keys_str_mv |
AT yangxiaoyong fractalcalculationmethodoffrictionparameterssurfacemorphologyandloadofgalvanizedsheet AT jintan fractalcalculationmethodoffrictionparameterssurfacemorphologyandloadofgalvanizedsheet |
| _version_ |
1718371474098618368 |