Servo presses achieve high formability by using different punch motion curves, thereby increasing their applicability in conventional processing fields. In this study, the curves of servo were optimized, and effects on springback U-shaped sheet metal explored. Subsequently, optimal curve was determined, effect after investigated. Different proposed simulated for comparison with results methods,...

Abstract The influence of part geometry on twist springback was studied by a A-pillar inner plate. structural parameters divided into cross-section and longitudinal axis, the response surface model established to analyze influences various springback. results show that straight line 1, 3, angle 2 4 cross section have significant effect In addition, increases continuously with increasing total l...

Abstract Flexible Roll Forming (FRF) is an advanced manufacturing process that can be used to form long and complex part families from hard materials for the automotive truck industry. However, depending on complexity material strength shape defects such as end flare, springback twist occur. In this work a high (Sled runner) produced 3 steels; component combines variations in width depth. The o...

This paper combines adaptive network fuzzy inference system (ANFIS) and finite element method (FEM) to study the die shape optimal design in sheet metal bending process. At first, the explicit dynamic FEM is used to simulate the sheet metal bending process. After the bending process, the springback is analyzed by using the implicit static FEM to establish the basic database for ANFIS. Then, the...

In this paper the evolution of the Young’s Modulus (E) during unloading with plastic deformation has been studied for different Dual-Phase AHSS from DP780 to DP1400. During unloading, all the DP steels studied showed the presence of microplasticity so an Apparent Young’s Modulus (EA) has been defined. Although that in all cases EA decreased with a nonlinear behavior as the plastic strain was in...

The sheet metal bending process plays an important role in production and springback is unintended consequence of this operation. If the die performed without knowing amount springback, it difficult to produce parts within acceptable tolerance values. behavior part be bent also affects size die. In particular, case a 90° U bend die, manufacturing cost with compensation method high. Therefore, e...

New methods in metal forming are rapidly developing and several processes used to optimize manufacturing components reduce cost production. Single Point Incremental Forming (SPIF) is a sheet process for rapid prototyping applications small batch This work dedicated the investigation of profile geometry thickness evolution truncated pyramid. The influence parameters during SPIF also studied. A n...