Calculation of rolling pressure distribution and force based on improved Karman equation for hot strip mill

Analysis of hot strip rolling using exponent velocity field and MY criterion

“…The rolling force of present model is compared with the results of Sims [1], Ford-Alexander [3], Moon [7] and Chen [9] ones, shown in Fig. 4.…”

“…The simplified weighted velocity field was used in analysis of hot tandem rolling by Zhang et al [8]. Combined with the integration of force equilibrium relationship, geometrical conditions and plastic equation and other conditions, an improved Karman equation was deduced by Chen et al [9] to calculate the rolling force in hot strip rolling.…”

Asymmetric hydrodynamic roll gap model and its experimental validation

“…Besides the hydrodynamic pressure acting along the normal direction of the strip-roll contact surface, the tangential shear stress τ is required to fully describe the force interaction between the work roll and the material. The relation for the shear stress follows from applying (12) with y = ± h 2 to Eq. 8 and reads as…”

“…Hence, the model cannot capture varying friction conditions or lubrication effects. Various formulations of the slab method were published that incorporate also the influence of friction (see, e.g., [10][11][12][13]). However, hardly, any attempt has been made to extend the slab method for asymmetric friction conditions (see, e.g., [14]).…”

Novel Silver Solid-State Bonding Designs Between Two Copper Structures

“…One way to achieve this is to apply high pressure to force materials to move and flow. An example is the thermocompression bonding technique in industries where the pressure is higher than 68.95 MPa (10 000 psi) [25], [26]. For advanced applications, such a high pressure is not an option.…”