Size Effects on Mechanical Properties of Copper Thin Sheet in Uniaxial Tensile Tests
Microforming offers a reliable method for mass production of micro parts with low cost and high precision. However, to form micro parts is more difficult than macro parts because of size effects. Uniaxial tensile tests are carried out to study the size effects on mechanical properties of copper C110...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Kaunas University of Technology
2014-12-01
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| Series: | Medžiagotyra |
| Subjects: | |
| Online Access: | http://matsc.ktu.lt/index.php/MatSc/article/view/5958 |
| _version_ | 1818417899021271040 |
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| author | Feng GONG Bin GUO |
| author_facet | Feng GONG Bin GUO |
| author_sort | Feng GONG |
| collection | DOAJ |
| description | Microforming offers a reliable method for mass production of micro parts with low cost and high precision. However, to form micro parts is more difficult than macro parts because of size effects. Uniaxial tensile tests are carried out to study the size effects on mechanical properties of copper C1100 thin sheet at room temperature on a universal testing machine. The materials are thermally treated at 873 K for 12 h in nitrogen atmosphere, and the specimens with thickness varying from 0.32 mm to 0.04 mm are manufactured by slow feeding wire cutting with initial gauge widths of 8, 4, 2, and 1 mm. In addition, a non-contact measurement device is developed to reduce the error of the contact measurement method. The results show that the size effects on mechanical property are obvious. The flow stress and elongation decrease dramatically with the decreasing specimen size. The reason for this phenomenon is also discussed by scanning electron microscope (SEM) observation and theoretical analysis. <p>DOI: <a href="http://dx.doi.org/10.5755/j01.ms.20.4.5958">http://dx.doi.org/10.5755/j01.ms.20.4.5958</a></p> |
| first_indexed | 2024-12-14T12:14:06Z |
| format | Article |
| id | doaj.art-dc236027cc3a4472aaa57de95626b004 |
| institution | Directory Open Access Journal |
| issn | 1392-1320 2029-7289 |
| language | English |
| last_indexed | 2024-12-14T12:14:06Z |
| publishDate | 2014-12-01 |
| publisher | Kaunas University of Technology |
| record_format | Article |
| series | Medžiagotyra |
| spelling | doaj.art-dc236027cc3a4472aaa57de95626b0042022-12-21T23:01:40ZengKaunas University of TechnologyMedžiagotyra1392-13202029-72892014-12-0120450951210.5755/j01.ms.20.4.59583818Size Effects on Mechanical Properties of Copper Thin Sheet in Uniaxial Tensile TestsFeng GONG0Bin GUO1Shenzhen UniversityHarbin Institute of TechnologyMicroforming offers a reliable method for mass production of micro parts with low cost and high precision. However, to form micro parts is more difficult than macro parts because of size effects. Uniaxial tensile tests are carried out to study the size effects on mechanical properties of copper C1100 thin sheet at room temperature on a universal testing machine. The materials are thermally treated at 873 K for 12 h in nitrogen atmosphere, and the specimens with thickness varying from 0.32 mm to 0.04 mm are manufactured by slow feeding wire cutting with initial gauge widths of 8, 4, 2, and 1 mm. In addition, a non-contact measurement device is developed to reduce the error of the contact measurement method. The results show that the size effects on mechanical property are obvious. The flow stress and elongation decrease dramatically with the decreasing specimen size. The reason for this phenomenon is also discussed by scanning electron microscope (SEM) observation and theoretical analysis. <p>DOI: <a href="http://dx.doi.org/10.5755/j01.ms.20.4.5958">http://dx.doi.org/10.5755/j01.ms.20.4.5958</a></p>http://matsc.ktu.lt/index.php/MatSc/article/view/5958size effectsmicro sheet formingnon-contact measurementflow stresselongation |
| spellingShingle | Feng GONG Bin GUO Size Effects on Mechanical Properties of Copper Thin Sheet in Uniaxial Tensile Tests Medžiagotyra size effects micro sheet forming non-contact measurement flow stress elongation |
| title | Size Effects on Mechanical Properties of Copper Thin Sheet in Uniaxial Tensile Tests |
| title_full | Size Effects on Mechanical Properties of Copper Thin Sheet in Uniaxial Tensile Tests |
| title_fullStr | Size Effects on Mechanical Properties of Copper Thin Sheet in Uniaxial Tensile Tests |
| title_full_unstemmed | Size Effects on Mechanical Properties of Copper Thin Sheet in Uniaxial Tensile Tests |
| title_short | Size Effects on Mechanical Properties of Copper Thin Sheet in Uniaxial Tensile Tests |
| title_sort | size effects on mechanical properties of copper thin sheet in uniaxial tensile tests |
| topic | size effects micro sheet forming non-contact measurement flow stress elongation |
| url | http://matsc.ktu.lt/index.php/MatSc/article/view/5958 |
| work_keys_str_mv | AT fenggong sizeeffectsonmechanicalpropertiesofcopperthinsheetinuniaxialtensiletests AT binguo sizeeffectsonmechanicalpropertiesofcopperthinsheetinuniaxialtensiletests |