Determination of Measurement Uncertainty in Extracting of Forming Limit Diagrams
In this research, Forming Limit Diagrams for supertension
sheet metals which are using in automobile industry have
been obtained. The exerted strains to sheet metals have been
measured with four different methods and the errors of each method
have also been represented. These methods have been compared with
together and the most efficient and economic way of extracting of the
exerted strains to sheet metals has been introduced. In this paper total
error and uncertainty of FLD extraction procedures have been
derived. Determination of the measurement uncertainty in extracting
of FLD has a great importance in design and analysis of the sheet
metal forming process.
[1] G. E. Diter, Workability testing techniques, American society for metals,
1984.
[2] S. P. Keeler, "Determination of Forming Limits Automotive Stamping,"
Sheet Met.Ind. Vol 42, 1965, pp. 683-691.
[3] E. J. Obermeyer, S. A. Majlessi, "A review of recent advances in the
application of blank-holder force towards improving the forming limits
of sheet metal parts," Journal of Materials Processing Technology, Vol.
75, 1998, pp. 222-234.
[4] S. L. Semiatin, and J. J. Jonas, "Formability and workability of metals",
LOP publishing Ltd., 1991
[5] R. M. Caddel, W. F. Hasford, Metal forming Mechanics and Metallurgy,
Prentice-Hall, Inc., Englewoods Cliffs, NJ, 1993.
[6] D. W. Manthey, D. Lee, R. M. Pearce and N. Y. Troy, "The need for
surface strain measurement", Metal Forming Magazine, 2007.
[7] Standard Test Method for Determining Forming Limit Curves, ASTM
E2218 - 02, Vol. 3, no. 1, 2008.
[1] G. E. Diter, Workability testing techniques, American society for metals,
1984.
[2] S. P. Keeler, "Determination of Forming Limits Automotive Stamping,"
Sheet Met.Ind. Vol 42, 1965, pp. 683-691.
[3] E. J. Obermeyer, S. A. Majlessi, "A review of recent advances in the
application of blank-holder force towards improving the forming limits
of sheet metal parts," Journal of Materials Processing Technology, Vol.
75, 1998, pp. 222-234.
[4] S. L. Semiatin, and J. J. Jonas, "Formability and workability of metals",
LOP publishing Ltd., 1991
[5] R. M. Caddel, W. F. Hasford, Metal forming Mechanics and Metallurgy,
Prentice-Hall, Inc., Englewoods Cliffs, NJ, 1993.
[6] D. W. Manthey, D. Lee, R. M. Pearce and N. Y. Troy, "The need for
surface strain measurement", Metal Forming Magazine, 2007.
[7] Standard Test Method for Determining Forming Limit Curves, ASTM
E2218 - 02, Vol. 3, no. 1, 2008.
@article{"International Journal of Mechanical, Industrial and Aerospace Sciences:63390", author = "M. Mahboubkhah and H. Fayazfar", title = "Determination of Measurement Uncertainty in Extracting of Forming Limit Diagrams", abstract = "In this research, Forming Limit Diagrams for supertension
sheet metals which are using in automobile industry have
been obtained. The exerted strains to sheet metals have been
measured with four different methods and the errors of each method
have also been represented. These methods have been compared with
together and the most efficient and economic way of extracting of the
exerted strains to sheet metals has been introduced. In this paper total
error and uncertainty of FLD extraction procedures have been
derived. Determination of the measurement uncertainty in extracting
of FLD has a great importance in design and analysis of the sheet
metal forming process.", keywords = "Forming Limit Diagram, Major and Minor Strain,Measurement Uncertainty.", volume = "3", number = "4", pages = "444-4", }