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Mechanical properties of a Ti6Al4V porous structure produced by selective laser melting

Sun, Jianfeng / Yang, Yongqiang / Wang, Di

Highlights ► Use selective laser melting to make Ti6Al4V porous structure. ► Build simplified model of porous structure, calculate maximum bearing capacity. ► Get the fracture load of porous structure with compression test. ► Analyze relation between theoretical maximum bearing capacity and fracture load. ► Analyze the cause of porous structure fracture.

Abstract This paper designs one octahedral Ti6Al4V porous structure and then establishes a simplified model. The Ti6Al4V porous structure is manufactured by selective laser melting. Its experimental and theoretical fracture loads are obtained through theoretical calculation and compression test respectively. The result demonstrates that there is an exponential relationship between the experimental fracture load and the porosity of the porous structure. With an average relative error of 5.86%, the deviation between experimental and theoretical fracture load is small, which indicates that the predication accuracy is comparatively high. So the fracture load calculation theory is valuable in practical applications. Finally, the fracture analysis indicates that fractures of units and porous structures are brittle fractures, which belong to cleavage fracture.

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Mechanical properties of a Ti6Al4V porous structure produced by selective laser melting

Sun, Jianfeng / Yang, Yongqiang / Wang, Di

Highlights ► Use selective laser melting to make Ti6Al4V porous structure. ► Build simplified model of porous structure, calculate maximum bearing capacity. ► Get the fracture load of porous structure with compression test. ► Analyze relation between theoretical maximum bearing capacity and fracture load. ► Analyze the cause of porous structure fracture.

Abstract This paper designs one octahedral Ti6Al4V porous structure and then establishes a simplified model. The Ti6Al4V porous structure is manufactured by selective laser melting. Its experimental and theoretical fracture loads are obtained through theoretical calculation and compression test respectively. The result demonstrates that there is an exponential relationship between the experimental fracture load and the porosity of the porous structure. With an average relative error of 5.86%, the deviation between experimental and theoretical fracture load is small, which indicates that the predication accuracy is comparatively high. So the fracture load calculation theory is valuable in practical applications. Finally, the fracture analysis indicates that fractures of units and porous structures are brittle fractures, which belong to cleavage fracture.

Mechanical properties of a Ti6Al4V porous structure produced by selective laser melting

Sun, Jianfeng / Yang, Yongqiang / Wang, Di

Highlights ► Use selective laser melting to make Ti6Al4V porous structure. ► Build simplified model of porous structure, calculate maximum bearing capacity. ► Get the fracture load of porous structure with compression test. ► Analyze relation between theoretical maximum bearing capacity and fracture load. ► Analyze the cause of porous structure fracture.

Abstract This paper designs one octahedral Ti6Al4V porous structure and then establishes a simplified model. The Ti6Al4V porous structure is manufactured by selective laser melting. Its experimental and theoretical fracture loads are obtained through theoretical calculation and compression test respectively. The result demonstrates that there is an exponential relationship between the experimental fracture load and the porosity of the porous structure. With an average relative error of 5.86%, the deviation between experimental and theoretical fracture load is small, which indicates that the predication accuracy is comparatively high. So the fracture load calculation theory is valuable in practical applications. Finally, the fracture analysis indicates that fractures of units and porous structures are brittle fractures, which belong to cleavage fracture.

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Title:

Mechanical properties of a Ti6Al4V porous structure produced by selective laser melting

Contributors:

Sun, Jianfeng (author) / Yang, Yongqiang (author) / Wang, Di (author)

Publication date:

2013-01-18

Size:

8 pages

ISSN:

DOI:

https://doi.org/10.1016/j.matdes.2013.01.038

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

English

Keywords:

Flexible manufacturing , Selective laser melting , Titanium alloy , Mechanical property , Porous structure

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