This study simulated the deformation of a hot runner manifold and nozzle assembly during operation, aiming to address potential leaks premature failure. Both thermal mechanical models were used simultaneously accurately capture system behavior. A simplified set boundary conditions was proposed for efficient problem-solving. Analysis simulation results revealed that posed risk catastrophic failu...

The purpose of this study is to develop a forging process of automotive parts that satisfies the deformation characteristics. The analyses of temperature variation and deformation behavior of the material are important to obtain the optimal forging products. The hot compression test was carried out to know formability at high temperature. In order to define the optimum forging conditions includ...

There are mainly two methods of deep drawing analysis; experimental and analytical/numerical. Experimental analysis can be useful in analyzing the process to determine the process parameters that produce a defect free product, and the analytical/numerical modeling can be used to model and analyze the process through all stages of deformation. This approach is less time consuming and more econom...

A new mean-field modeling tool is developed to correctly tackle the problem of precipitation during deformation. The model an extension a previously Langer–Schwartz–Kampmann–Wagner approach for multicomponent alloys. latter now integrated together with Thermo-Calc software and physically based equations describing evolution dislocation density hot-working. New nucleation barrier critical size h...

The viscoplastic deformation of polycrystals under uniaxial loading is investigated to determine the relationship between hot spots in stress and their location in relation to the microstructure. A 3D full-field formulation based on fast Fourier transforms for the prediction of the viscoplastic deformation of poly-crystals is used with rate-sensitive crystal plasticity. Two measured polycrystal...

A novel hot embossing/low temperature ethanol solvent bonding method for the fabrication of polymethylmethacrylate (PMMA) field flow fractionation devices has been developed. The separation channel on a PMMA substrate was generated by a hot embossing process without vacuum. Special temperature-pressure profiles were used to analyze the influence of the hot embossing parameters. After the hot em...