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Numerical simulation of aluminum alloy 6061 micro-mold fabrication for the production of polymeric microstructures by micro-hot-embossing

หน่วยงาน Nanyang Technological University, Singapore

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ชื่อเรื่อง : Numerical simulation of aluminum alloy 6061 micro-mold fabrication for the production of polymeric microstructures by micro-hot-embossing
นักวิจัย : Tran, Nhat Khoa , Chester, Shawn A. , Lam, Yee Cheong , Anand, L. , Yue, Chee Yoon
คำค้น : DRNTU::Engineering::Mechanical engineering.
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2555
อ้างอิง : Tran, N. K., Chester, S. A., Lam, Y. C., Anand, L., & Yue, C. Y. (2012). Numerical simulation of aluminum alloy 6061 micro-mold fabrication for the production of polymeric microstructures by micro-hot-embossing. Journal of micromechanics and microengineering, 22(8), 085005-. , http://hdl.handle.net/10220/11471 , http://dx.doi.org/10.1088/0960-1317/22/8/085005
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Journal of micromechanics and microengineering
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

Micro-molds play an important role in the manufacturing process of polymeric micro-devices, e.g. microfluidic devices, as they determine the product quality and the overall production cost. We report here the applicability of a large-deformation, high-temperature, isotropic elastic-viscoplasticity model for the prediction of micron-scale hot-embossing of AA6061. The material parameters in the constitutive model were determined by fitting the stress–strain curves from compression tests at various temperatures and strain rates. The constitutive theory was implemented in a finite element program, and the numerical simulation capability was validated by predicting the response of AA6061 in some representative macro-scale experiments; these experiments had not been used for the determination of the material parameters in the constitutive model. Additional micron-scale hot-embossing experiments on AA6061 were conducted, and by comparing the numerical simulation results to the corresponding physical experiments, we demonstrate that the deformation evolution of AA6061 during micro-hot-embossing is well predicted. The constitutive model and its numerical implementation open the possibility of optimizing the process of making micro-molds for microfluidic devices from AA6061.

บรรณานุกรม :
Tran, Nhat Khoa , Chester, Shawn A. , Lam, Yee Cheong , Anand, L. , Yue, Chee Yoon . (2555). Numerical simulation of aluminum alloy 6061 micro-mold fabrication for the production of polymeric microstructures by micro-hot-embossing.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Tran, Nhat Khoa , Chester, Shawn A. , Lam, Yee Cheong , Anand, L. , Yue, Chee Yoon . 2555. "Numerical simulation of aluminum alloy 6061 micro-mold fabrication for the production of polymeric microstructures by micro-hot-embossing".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Tran, Nhat Khoa , Chester, Shawn A. , Lam, Yee Cheong , Anand, L. , Yue, Chee Yoon . "Numerical simulation of aluminum alloy 6061 micro-mold fabrication for the production of polymeric microstructures by micro-hot-embossing."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2555. Print.
Tran, Nhat Khoa , Chester, Shawn A. , Lam, Yee Cheong , Anand, L. , Yue, Chee Yoon . Numerical simulation of aluminum alloy 6061 micro-mold fabrication for the production of polymeric microstructures by micro-hot-embossing. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2555.