Evaluation of Particle Size and Friction Coefficients in Sintered Metal Process Development by Discrete Element Simulation
The effects of particle size and friction coefficients of Fe-Ni-Mo steel powder on their filling behavior by a discrete element method (DEM) simulation were investigated. Our original DEM code based on FDPS (Framework for Developing Particle Simulator) was used for these simulations. First, the diff...
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Japanese Society of Tribologists
2025-05-01
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| Series: | Tribology Online |
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| Online Access: | https://www.jstage.jst.go.jp/article/trol/20/2/20_46/_pdf/-char/en |
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| author | Naoki Yashiro Natsuko Sugimura Hitoshi Washizu |
| author_facet | Naoki Yashiro Natsuko Sugimura Hitoshi Washizu |
| author_sort | Naoki Yashiro |
| collection | DOAJ |
| description | The effects of particle size and friction coefficients of Fe-Ni-Mo steel powder on their filling behavior by a discrete element method (DEM) simulation were investigated. Our original DEM code based on FDPS (Framework for Developing Particle Simulator) was used for these simulations. First, the difference between the experimental and simulated values of the apparent density (simulation error) depends on the particle size, and in this case, the minimum level (＜10%) was reached when the particle size was 300-500 μm. In addition, the simulation with a 500 μm particle size model were found to yield an equivalent simulation accuracy in 1/5 the computation time of the 300 μm model. Next, the additives-induced decreases in the friction coefficients were applied to the simulation. In the experiment, the additives increased the apparent density by 6.7%, whereas in the simulation, it increased by 7.1%, showing that the differences in the friction coefficients can be qualitatively and quantitatively reproduced in the simulation. These results indicated that this simulation method can contribute to increasing the efficiency and speed of materials and manufacturing process development of sintered metal products. |
| format | Article |
| id | doaj-art-f8d9a99f455c46db99cda73e8ade2f25 |
| institution | Kabale University |
| issn | 1881-2198 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Japanese Society of Tribologists |
| record_format | Article |
| series | Tribology Online |
| spelling | doaj-art-f8d9a99f455c46db99cda73e8ade2f252025-08-20T03:42:53ZengJapanese Society of TribologistsTribology Online1881-21982025-05-01202465510.2474/trol.20.46trolEvaluation of Particle Size and Friction Coefficients in Sintered Metal Process Development by Discrete Element SimulationNaoki Yashiro0Natsuko Sugimura1Hitoshi Washizu2Graduate School of Simulation Studies, University of HyogoGraduate School of Information Science, University of HyogoGraduate School of Simulation Studies, University of HyogoThe effects of particle size and friction coefficients of Fe-Ni-Mo steel powder on their filling behavior by a discrete element method (DEM) simulation were investigated. Our original DEM code based on FDPS (Framework for Developing Particle Simulator) was used for these simulations. First, the difference between the experimental and simulated values of the apparent density (simulation error) depends on the particle size, and in this case, the minimum level (＜10%) was reached when the particle size was 300-500 μm. In addition, the simulation with a 500 μm particle size model were found to yield an equivalent simulation accuracy in 1/5 the computation time of the 300 μm model. Next, the additives-induced decreases in the friction coefficients were applied to the simulation. In the experiment, the additives increased the apparent density by 6.7%, whereas in the simulation, it increased by 7.1%, showing that the differences in the friction coefficients can be qualitatively and quantitatively reproduced in the simulation. These results indicated that this simulation method can contribute to increasing the efficiency and speed of materials and manufacturing process development of sintered metal products.https://www.jstage.jst.go.jp/article/trol/20/2/20_46/_pdf/-char/ensteel powderfilling behaviordiscrete element method (dem), fdpsapparent densityparticle sizefriction coefficientsimulation accuracy |
| spellingShingle | Naoki Yashiro Natsuko Sugimura Hitoshi Washizu Evaluation of Particle Size and Friction Coefficients in Sintered Metal Process Development by Discrete Element Simulation Tribology Online steel powder filling behavior discrete element method (dem), fdps apparent density particle size friction coefficient simulation accuracy |
| title | Evaluation of Particle Size and Friction Coefficients in Sintered Metal Process Development by Discrete Element Simulation |
| title_full | Evaluation of Particle Size and Friction Coefficients in Sintered Metal Process Development by Discrete Element Simulation |
| title_fullStr | Evaluation of Particle Size and Friction Coefficients in Sintered Metal Process Development by Discrete Element Simulation |
| title_full_unstemmed | Evaluation of Particle Size and Friction Coefficients in Sintered Metal Process Development by Discrete Element Simulation |
| title_short | Evaluation of Particle Size and Friction Coefficients in Sintered Metal Process Development by Discrete Element Simulation |
| title_sort | evaluation of particle size and friction coefficients in sintered metal process development by discrete element simulation |
| topic | steel powder filling behavior discrete element method (dem), fdps apparent density particle size friction coefficient simulation accuracy |
| url | https://www.jstage.jst.go.jp/article/trol/20/2/20_46/_pdf/-char/en |
| work_keys_str_mv | AT naokiyashiro evaluationofparticlesizeandfrictioncoefficientsinsinteredmetalprocessdevelopmentbydiscreteelementsimulation AT natsukosugimura evaluationofparticlesizeandfrictioncoefficientsinsinteredmetalprocessdevelopmentbydiscreteelementsimulation AT hitoshiwashizu evaluationofparticlesizeandfrictioncoefficientsinsinteredmetalprocessdevelopmentbydiscreteelementsimulation |