A new approach for achieving excellent strain homogeneity in tubular channel angular pressing (TCAP) process
Publish Year: 1393
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_JMATPR-2-1_001
تاریخ نمایه سازی: 12 مهر 1400
Abstract:
Tubular channel angular pressing (TCAP) is a recently invented novel severe plastic deformation technique for producing UFG tubes. Plastic deformation analysis using the finite element method (FEM) was carried out to investigate the effects of trapezoidal channel geometry on strain inhomogeneity index (SII), strain level and required load compared to previously used channel geometries. The results showed that SII is decreased to ۰.۰۰۳ in the case of trapezoidal channel while they are ۰.۱۳ and ۰.۲۴ in the cases of semicircular and triangular channel types, respectively. It means that excellent strain homogeneity is achieved in TCAP processing using trapezoidal channel geometry. The required load for the trapezoidal channel was ۴۱% lower than that for the triangular channel but it is almost the same for semicircular channel. From the point of view of better strain homogeneity and needing lower process load, TCAP processing using trapezoidal channel is an excellent technique for producing UFG tubes.
Keywords:
Tubular channel angular pressing , Trapezoidal Channel geometry , Finite element method , Plastic Deformation
Authors
Ghader Faraji
Department of mechanical Engineering, Faculty of Engineering, University of Tehran, Tehran, Iran.
F. Reshadi
Department of mechanical Engineering, Faculty of Engineering, University of Tehran, Tehran, Iran.
M. Baniasadia
Department of mechanical Engineering, Faculty of Engineering, University of Tehran, Tehran, Iran.
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