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El-Abden, S., Atef, R. (2020). FINITE ELEMENT ANALYSIS AND EXPERIMENTAL INVESTIGATIONS ON HUB FORMING IN A SHEET BY THE HOLE EXPANDING TECHNIQUE. JES. Journal of Engineering Sciences, 48(No 1), 44-53. doi: 10.21608/jesaun.2020.109053
Samy Zein El-Abden; Raghda Atef. "FINITE ELEMENT ANALYSIS AND EXPERIMENTAL INVESTIGATIONS ON HUB FORMING IN A SHEET BY THE HOLE EXPANDING TECHNIQUE". JES. Journal of Engineering Sciences, 48, No 1, 2020, 44-53. doi: 10.21608/jesaun.2020.109053
El-Abden, S., Atef, R. (2020). 'FINITE ELEMENT ANALYSIS AND EXPERIMENTAL INVESTIGATIONS ON HUB FORMING IN A SHEET BY THE HOLE EXPANDING TECHNIQUE', JES. Journal of Engineering Sciences, 48(No 1), pp. 44-53. doi: 10.21608/jesaun.2020.109053
El-Abden, S., Atef, R. FINITE ELEMENT ANALYSIS AND EXPERIMENTAL INVESTIGATIONS ON HUB FORMING IN A SHEET BY THE HOLE EXPANDING TECHNIQUE. JES. Journal of Engineering Sciences, 2020; 48(No 1): 44-53. doi: 10.21608/jesaun.2020.109053

FINITE ELEMENT ANALYSIS AND EXPERIMENTAL INVESTIGATIONS ON HUB FORMING IN A SHEET BY THE HOLE EXPANDING TECHNIQUE

Article 5, Volume 48, No 1, January and February 2020, Page 44-53  XML PDF (1.05 MB)
Document Type: Research Paper
DOI: 10.21608/jesaun.2020.109053
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Authors
Samy Zein El-Abden email ; Raghda Atef
Production Engineering and Mechanical Design Dept., Faculty of Engineering, Minia University, Minia, EGYPT
Abstract
A numerical (finite element) simulation and experiments were carried out to form parts with hubs utilizing the hole expanding (HE) using different punch shapes (conical, flat and spherical) on AISI 1010 steel sheets with varying thickness (0.8, 1.00, 1.5 and 2mm). Five pre-hole diameters (8, 10, 12, 16 and 20 mm) were used. Effects of punch shape, sheet thickness and pre-hole diameter on load/displacement curves and failure modes were investigated. FE- predicted results showed that the punch shape, sheet thickness and pre-hole diameter were the controlling factors of the formability achieved in the process. From the experimental results, it was noticed that the required load was increased by increasing the sheet thickness and decreasing the pre-hole diameter. Effect of sheet thickness on the displacement at which maximum load occurs was not clear. FE simulation results proved to agree with to the experimental results reflecting the effect of controlling parameters and the beginning of damage modes. Limit processing curves, showing safe and unsafe regions could be determined
Keywords
Hub forming by hole expanding; FE simulation; Punch geometry; damage modes; Forming limit curves
Main Subjects
Mechanical, Power, Production, Design and Mechatronics Engineering.
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