Lucie Novakova and Petr Homola and Vaclav Kafka
Effect of Structure on Properties of Incrementally Formed Titanium Alloy Sheets
373 - 378
2014
8
2
International Journal of Aerospace and Mechanical Engineering
https://publications.waset.org/pdf/9997536
https://publications.waset.org/vol/86
World Academy of Science, Engineering and Technology
Asymmetric incremental sheet forming (AISF) could significantly reduce costs incurred by the fabrication of complex industrial components with a minimal environmental impact. The AISF experiments were carried out on commercially pure titanium (TiGr2), Timetal (15333) alloy, and Ti6Al4V (TiGr5) alloy. A special testing geometry was used to characterize the titanium alloys properties from the point of view of the forming zone and titanium structure effect. The structure and properties of the materials were assessed by means of metallographic analyses and microhardness measurements.The highest differences in the parameters assessed as a function of the sampling zone were observed in the case of alphaphase TiGr2at the expense of the most substantial sheet thinning occurrence. A springback causes a smaller stored deformation in Timetal (β alloy) resulting in less pronounced microstructure refinement and microhardness increase. Ti6Al4V alloy exhibited early failure due to its poor formability at ambient temperature.
Open Science Index 86, 2014