The knowledge-based system COFEX (Cold Forging Expert) has been developed to assist in the planning of the cold forging of a wide variety of tubular steel components. Following user-input of the required shape and dimensions of the finished forging, together with as many different sequences as desired, each operation is examined by the system by consulting the knowledge-base process rules and d...

Based on the metallographic studies of undercarriage wheels, which are operated within different periods time and have types degrees wear, it can be concluded that steel with chemical composition close to eutectoid one, equilibrium crystal lattice, should used for manufacturing. The microstructure working surfaces wheels fine pearlite, ideally sorbitol (fine type pearlite). These requirements m...

The purpose of the paper is to present features development ironworking Volga-Kama periphery Eastern European part Barbarikum on basis data obtained during metallographic study forged pieces related materials Imenkovo culture (V–VII centuries), that were found in different years (mainly by P.N. Starostin 1960s–80s) Shcherbet I settlement destroyed reservoir. Schemes and methods making 31 items ...

To obtain excellent mechanical properties from large cross-sections of plastic mould steel (SDP1), we conducted multi-directional forging (MDF) to control the microstructure ingots. investigate microstructural evolution SDP1 during MDF, performed hot at 1150 °C using a THP01–500A hydraulic press. The dimensions specimens were Φ38 mm × 80 mm. after was observed under metallographic microscope. F...

The components in top-fuel dragster and stock car engines undergo significantly more force than their production passenger vehicle counterparts do. Therefore, they must be manufactured and processed to withstand those forces so that they do not catastrophically fail while in service. In this project, the effects of austempering and adding a cryogenic processing step to the control quench and do...