Skin-rolling is the final operation of technological process for production auto sheet steel. Tempering affects quality metal surface, properties and stamping ability. Treading allows you to harden surface rolled products keep inner layers undeformed. As a result, it possible prevent formation shear lines during provide an optimal combination mechanical characteristics products. On skin-rolling...

Abstract One of the biggest energy consumers and CO2 emitters in world is steel sector. With growth infrastructure construction, output has risen year over year. Therefore, a life cycle assessment inputs outputs at each stage manufacturing process necessary to enable adoption management offer sustainable production consumption. The Life Cycle Assessment method employed this study assess environ...

In this paper, a new kind of hierarchical tube with a negative Poisson's ratio (NPR) is proposed. The first level tube is constructed by rolling up an auxetic hexagonal honeycomb. Then, the second level tube is produced by substituting the arm of the auxetic sheet with the first level tube and rolling it up. The Nth ( ) level tube can be built recursively. Based on the Euler beam theory, the eq...

The article discusses the main structural features of radial-shear rolling mini-mills and their most common sizes. A generalized algorithm for designing such mills using modern CAD systems is described. approaches to methodology software adaptive design models in engineering are listed with differences. In particular, horizontal modeling, explicit modeling methodology, resilient strategy consid...

High hardening of the steel, which is caused by martensitic transformation through cold forming, leads to significant local elastic roll deformation (flattening). The rolling strain-hardened steel requires higher forces and torques, result in high force. Roll flattening can be reduced using rolls made a material with significantly modulus elasticity. suitability ceramic materials for modern hot...

The key priority of metallurgical industry development is expanding the range and improving quality bar products their major component, steel wire. Continuous wire rod mills with multi-roll passes have been developed implemented over past decades. These include four-roll mutually perpendicular rolls. specific feature complex impossibility conduct direct measurement workpiece dimensions in sever...

It is well known that tires play an important role in the generation of rolling noise. For low frequencies, the circular ring model can describe in a simple way the tire dynamic behaviour. This model is based on the Euler Bernoulli beam theory and takes into account the prestress generated by the internal air pressure but is otherwise linear. However, nonlinear effects resulting from high inter...

Although the manufacture of rolls is in constant improvement, the requirements for superior quality rolls have not yet been completely satisfied, in many cases the absence of quality rolls preventing the realization of quality laminates or of productivity of which rolling mills are capable. In the selection of materials several factors have to be considered including the type of rolling mill, t...