Effect of Build Parameters on the Compressive Behavior of Additive Manufactured CoCrMo Lattice Parts Based on Experimental Design
Due to their high specific strength, toughness, and corrosion and wear resistance characteristics, CoCrMo alloys are widely used in different industries and applications: wind turbines and jet-engine components, orthopedic implants, dental crowns, etc. The aim of this paper is to investigate the eff...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-06-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/12/7/1104 |
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| author | Orhan Gülcan Ugur Simsek Okan Cokgunlu Mirhan Özdemir Polat Şendur Guney Guven Yapici |
| author_facet | Orhan Gülcan Ugur Simsek Okan Cokgunlu Mirhan Özdemir Polat Şendur Guney Guven Yapici |
| author_sort | Orhan Gülcan |
| collection | DOAJ |
| description | Due to their high specific strength, toughness, and corrosion and wear resistance characteristics, CoCrMo alloys are widely used in different industries and applications: wind turbines and jet-engine components, orthopedic implants, dental crowns, etc. The aim of this paper is to investigate the effect of lattice parameters on the compressive behavior of laser powder bed fusion (LPBF) parts from CoCrMo material. Build orientation, volume fraction, and lattice type are chosen as input parameters or control factors, and compressive yield strength (<i>σ<sub>y</sub></i>), elastic modulus (E), and specific energy absorption are chosen as the output or performance parameters for optimization. The Taguchi experimental design method is used in the arrangement of lattice parameters during experimental studies. The level of importance of the lattice parameters on <i>σ<sub>y</sub></i>, E, and specific energy absorption is determined by using analysis of variance (ANOVA). At the same material volume fractions, Diamond specimens showed higher <i>σ<sub>y</sub></i> and specific energy absorption than Gyroid and Primitive specimens, except <i>σ<sub>y</sub></i> at 0.4 volume fraction, where a Gyroid specimen showed the best result. The experimental and statistical results revealed that volume fraction and build orientation were found to be the major and minor effective factors, respectively, for all performance parameters (<i>σ<sub>y</sub></i>, E, and specific energy absorption). The effect of volume fraction on <i>σ<sub>y</sub></i>, E, and specific energy absorption was found to be 85.11%, 91.83%, and 57.71%, respectively. Lattice type was found to be the second-ranking factor, affecting <i>σ<sub>y</sub></i>, E, and specific energy absorption with contributions of 11.04%, 6.98%, and 39.40%, respectively. Multi objective optimization based on grey relation analysis showed that a Diamond specimen with 0.4 volume fraction and 45° build orientation was the best parameter set for the investigated performance outputs. |
| first_indexed | 2024-03-09T13:23:02Z |
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| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-09T13:23:02Z |
| publishDate | 2022-06-01 |
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| series | Metals |
| spelling | doaj.art-1e4bc1eda19141e2a70d741db3db2a3a2023-11-30T21:27:11ZengMDPI AGMetals2075-47012022-06-01127110410.3390/met12071104Effect of Build Parameters on the Compressive Behavior of Additive Manufactured CoCrMo Lattice Parts Based on Experimental DesignOrhan Gülcan0Ugur Simsek1Okan Cokgunlu2Mirhan Özdemir3Polat Şendur4Guney Guven Yapici5General Electric Aviation, Additive Design, Kocaeli 41400, TurkeyGeneral Electric Aviation, Additive Design, Kocaeli 41400, TurkeyMechanical Engineering Department, Ozyegin University, Istanbul 34794, TurkeyMechanical Engineering Department, Ozyegin University, Istanbul 34794, TurkeyMechanical Engineering Department, Ozyegin University, Istanbul 34794, TurkeyMechanical Engineering Department, Ozyegin University, Istanbul 34794, TurkeyDue to their high specific strength, toughness, and corrosion and wear resistance characteristics, CoCrMo alloys are widely used in different industries and applications: wind turbines and jet-engine components, orthopedic implants, dental crowns, etc. The aim of this paper is to investigate the effect of lattice parameters on the compressive behavior of laser powder bed fusion (LPBF) parts from CoCrMo material. Build orientation, volume fraction, and lattice type are chosen as input parameters or control factors, and compressive yield strength (<i>σ<sub>y</sub></i>), elastic modulus (E), and specific energy absorption are chosen as the output or performance parameters for optimization. The Taguchi experimental design method is used in the arrangement of lattice parameters during experimental studies. The level of importance of the lattice parameters on <i>σ<sub>y</sub></i>, E, and specific energy absorption is determined by using analysis of variance (ANOVA). At the same material volume fractions, Diamond specimens showed higher <i>σ<sub>y</sub></i> and specific energy absorption than Gyroid and Primitive specimens, except <i>σ<sub>y</sub></i> at 0.4 volume fraction, where a Gyroid specimen showed the best result. The experimental and statistical results revealed that volume fraction and build orientation were found to be the major and minor effective factors, respectively, for all performance parameters (<i>σ<sub>y</sub></i>, E, and specific energy absorption). The effect of volume fraction on <i>σ<sub>y</sub></i>, E, and specific energy absorption was found to be 85.11%, 91.83%, and 57.71%, respectively. Lattice type was found to be the second-ranking factor, affecting <i>σ<sub>y</sub></i>, E, and specific energy absorption with contributions of 11.04%, 6.98%, and 39.40%, respectively. Multi objective optimization based on grey relation analysis showed that a Diamond specimen with 0.4 volume fraction and 45° build orientation was the best parameter set for the investigated performance outputs.https://www.mdpi.com/2075-4701/12/7/1104additive manufacturinglaser powder bed fusionbuild orientationvolume fractionlattice type |
| spellingShingle | Orhan Gülcan Ugur Simsek Okan Cokgunlu Mirhan Özdemir Polat Şendur Guney Guven Yapici Effect of Build Parameters on the Compressive Behavior of Additive Manufactured CoCrMo Lattice Parts Based on Experimental Design Metals additive manufacturing laser powder bed fusion build orientation volume fraction lattice type |
| title | Effect of Build Parameters on the Compressive Behavior of Additive Manufactured CoCrMo Lattice Parts Based on Experimental Design |
| title_full | Effect of Build Parameters on the Compressive Behavior of Additive Manufactured CoCrMo Lattice Parts Based on Experimental Design |
| title_fullStr | Effect of Build Parameters on the Compressive Behavior of Additive Manufactured CoCrMo Lattice Parts Based on Experimental Design |
| title_full_unstemmed | Effect of Build Parameters on the Compressive Behavior of Additive Manufactured CoCrMo Lattice Parts Based on Experimental Design |
| title_short | Effect of Build Parameters on the Compressive Behavior of Additive Manufactured CoCrMo Lattice Parts Based on Experimental Design |
| title_sort | effect of build parameters on the compressive behavior of additive manufactured cocrmo lattice parts based on experimental design |
| topic | additive manufacturing laser powder bed fusion build orientation volume fraction lattice type |
| url | https://www.mdpi.com/2075-4701/12/7/1104 |
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