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of the symmetric geometry and boundary conditions, only one quarter of the tooling and the part was modeled. In the finite element simulation, the forming tool consisting of punch, blankholder and die was modeled as rigid body, correspondingly the S4R rigid shell elements were used only to define the tooling geometry and were not for the stress analysis. The metal sheet was defined as deformable and meshed......
were to be met in order to develop a reliable hot-embossing process and corresponding machine system [14]. In this paper, the development of a desktop hot-embossing machine system and tooling... of tooling, less complexity of the machine motions and construction, and being easy for production automation realization, etc. 3 Considerations for machine development The requirements......
vibration during the deep drawing process, AZ31B magnesium alloy sheet was selected, and a set of tooling by superimposing ultrasonic vibrations on the solid granule medium drawing technology was designed. The tooling was designed to meet the following requirements: 1) The design should be able to form the cylindrical workpiece of AZ31B magnesium alloy sheet under heating condition; 2) The design can......
WITT D J. Tooling function sin rotary-draw bending: Reviewing the basic equipment [J]. The Fabricator, 1994, 24: 28-31. [3] STANGE R R. Tooling and methods for tube and pipe bending: The importance......
approach, numerical simulation offers a computational approach to reduce the time and cost for achieving proper tooling design and optimizing compaction parameters. Numerical simulation of warm powder..., the contact condition between the particles and the tooling changes with the relative density. The numerical simulation in this study supposed it follows the modified Coulomb principle, and is smoothed......
better understanding of material flow within dies, so as to optimize tooling to eliminate tears, laps and other forging defects[9-12]. The DEFORM software package is a professional FEM software, which... are obtained from material database in DEFORM3D. In the simulation, the billet is a plastic body, whilst the top die and the lower die are rigid bodies. The geometry models of the billet and tooling......
-aided design system of tube bending processes and an automatic tooling design system have been developed respectively. But these systems are almost based on experience expresses and the reliability.... [9] JIN Z, LUO S, DANIEL FANG X. KBS-aided design of tube bending process[J]. Engineering Applications of Artificial Intelligence, 2001, 14: 599-606. [10] Strano M. Automatic tooling design......
, Schryff I. Trends in plastic mould steel applications[C]//Proceedings of the 5th International Conference on Tooling. Austria: Montanuniversitat Leoben, 1999: 83-90. [6] Sera T, Unino M. Development of new free-cutting plastic mould steel[C]//Proceedings of the 5th International Conference on Tooling, Austria: Montanuniversitat Leoben, 1999: 653-660. [7] 宋冬利, 顾剑锋, 胡明娟. 预硬型塑料模具钢P20和718等温转变曲线的测定与分析......
speeds at 0.25 and 0.76 mm/s (initial strain rates of 0.008 and 0.025 s-1, respectively). 2.4 Limiting dome height (LDH) Schematic of the LDH tooling geometry used in the present work is shown in Fig. 2... of front insulation removed); (b) Tool geometries used in LDH tests; (c) Tool geometries used in LDR test 2.5 Limiting drawing ratio (LDR) Dimensions of the LDR tooling used in this work are shown in Fig. 2......
to achieve relative high efficiency and precision bending forming. When the tooling is removed, the springback, as the inevitable elastic release phenomenon [3], occurs due to the extrados elongation... of 1Cr18Ni9Ti stainless steel tubes under bending [J]. Materials and Design, 2010, 31(3): 1256-1261. [11] STRANO M. Automatic tooling design for rotary draw bending of tubes [J]. International Journal......
