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The Influence of Selected Technological Parameters on Changes in the Flanging Load

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Języki publikacji
EN
Abstrakty
EN
The flanging process is widely used in stamping production: when collar drawing small holes for threads or to increase the stiffness of a draw piece. It can also replace the operation of deep drawing cylindrical draw pieces with a large flange followed by cutting the bottom. The paper discusses the influence of the shape of the punch and the grade of material on load changes at various collar drawing coefficients. Flat, spherical and conical punches and samples made of EN-AW 1050A aluminium, Cu-ETP copper, CuZn37 brass, S235JRG2 steel, X6Cr17 steel and X5CrNi18-10 steel were used for testing. The relative thickness of test pieces was 0.015 (which corresponded to a thickness of 1 mm and a blank diameter of 66 mm). Various collar drawing factors ranging from 0.32 to 0.54 were adopted in the studies. An analysis of the obtained height of collars and wall thicknesses was carried out. The experimental tests were carried out using special tooling mounted on a testing machine with a 20kN load for 0.5 metrological class. Changes in the force as a function of the displacement of the punches were recorded using Test&Motion software that is commonly applied in research laboratories. Based on the obtained results at various technological parameters, possibility of flanging process was evaluated in industrial conditions
Twórcy
  • Faculty of Mechatronics and Mechanical Engineering, Kielce University of Technology, Al. Tysiąclecia Państwa Polskiego 7, 25-314 Kielce, Poland
Bibliografia
  • 1. Pacanowski J. Design of deep drawing process of axisymmetric draw pieces and design press-forming dies T1 Methods and directives for deep drawing of axisymmetric draw pieces (Kielce: Kielce University of Technology), chapter 2018, 125–138 (in Polish)
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  • 5. Chałupczak J., Miłek T. The influence of punch shape and grade of material on selected parameters of collar drawing process. Rudy i Metale Nieżelazne 1999, 44(11), 591–594 (in Polish).
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  • 9. Huang Y.M., Chien K.H. Influence of cone semi-angle on the formability limitation of the hole-flanging process. The International Journal of Advanced Manufacturing Technology 2002, 19, 597–606.
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  • 13. Kumar S., Ahmed M., Panthi S.K. Effect of punch profile on deformation behaviour of AA5052 sheet in stretch flanging process. Archives of Civil and Mechanical Engineering 2020, 20(18), 1–18.
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  • 19. ISO, E., 6892-1. Metallic materials – Tensile testing – Part 1: Method of test at room temperature, International Organization for Standardization, 2019.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-fe486026-2439-4a6f-a1c9-c3f5995a1756
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