A constitutive model was developed to predict the high temperature sub-transus flow behavior of a metastable β Ti-10V-2Fe-3Al alloy, and its applicability for industrial scale forging process has been evaluated using finite element simulation. Cylindrical samples extracted from cogged billet alloy after recrystallisation treatment were subjected hot compression tests at temperatures ranging 720...

A widely used method for hot forming steels and alloys, especially heavy forging, is the process of multistage forging with pauses between stages. The well-known effect which accompanies multistage hot forging is metal plasticity recovery in comparison with monotonic deformation. A method which takes into consideration the recovery of plasticity in pauses between hot deformations of a billet un...

Accurate prediction of the final shape using numerical modeling has been a top priority in the field of sheet and bulk forming. Better shape prediction is the result of a better estimation of the physical stress and strain state. For experimental and numerical investigations of such estimations, simple benchmark processes are used. In this paper a benchmark process involving forging (flattening...

Global competition in the cold forging industry raises the significance of managing innovation and technological change. Strategies for development and application of new technology are extremely important for maintaining a competitive position and protecting sales. This paper reviews some of the advances in cold forging technology with an emphasis on the application of virtual process simulati...

Material property evolution during processing is governed by the evolution of the underlying microstructure. We present an efficient technique for tailoring texture development and thus, optimizing properties in forming processes involving polycrystalline materials. The deformation process simulator allows simulation of texture formation using a continuum representation of the orientation distr...

This study used finite element analysis software DEFORM-3D to analyze the preform formability and die stress in pre-forming process of forging automobile transmission components. The materials are AISI- 5120 alloy steel JIS-SKD61 mould steel, respectively. research investigated phenomenon folding defects at end final process. First, as shape under pre-formed channel was designed change, its clo...

In this study, SiC nanoparticles were added into matrix alloy through a combination of semisolid stirring and ultrasonic vibration while dynamic precipitation of second phases was obtained through multi-pass forging with varying temperatures. During single-pass forging of the present composite, as the deformation temperature increased, the extent of recrystallization increased, and grains were ...

Metal forming process simulation requires a very high cost including the cost for dies, machine and material and tight process control since the process involve very huge pressure. A physical modeling technique is developed and initiates a new era of educational tool of simulating the process effectively. Several publications and findings have shown a potential of the techniques else where. The...

Article history: Received: 08.11.2013. Received in revised form: 12.01.2013. Accepted: 14.01.2014. The grinding roller shaft is a key part of the grinding roller. It has a step-shaped shaft with different round cross-sections and 1850 mm × 1110 mm rectangular cross-section. If the general method of free forging is used, the upsetting diameter of ingot will reach 2900 mm, and 8400 t hydraulic pr...

Influence of the constitutive flow law in FEM simulation of the Radial forging process. OATAO is an open access repository that collects the work of Toulouse researchers and makes it freely available over the web where possible. Radial forging is a widely used forming process for manufacturing hollow products in transport industry. As the deformation of the workpiece, during the process, is a c...