Can technological shells be used to roll hard-to-deform materials?

The design of technological shells for the rolling of hard-to-deform materials was optimized based on FE simulation results; The developed technological shell was tested using the example of the rolling process of a model hard-to-deform tool steel.

What is the material phase of battery shell?

XRD pattern illustrates that the material phase of the battery shell is mainly Fe, Ni and Fe-Ni alloy (Fig. 1 e). The surface of the steel shell has been coated with a thin layer of nickel (Ni) to improve the corrosion resistance, which is also demonstrated by cross-sectional image observation (Fig. S5a).

Do technological shells reduce the roll-separation force?

The use of technological shells effectively reduces the roll-separation force when the softest material is chosen ( Ys / Yh = 0.1). However, in this case, the rolling process is associated with the following issues: a total reduction of sheets from hard-to-deform materials is reduced, which reduces the rolling process efficiency;

Does nickel plated steel make a good battery shell?

The choice of nickel plated steel on its strength is critical. This study provides a solid dynamic constitutive modeling methodology for the LIB shell and the strain rate sensitive which may stimulate further study towards the safety design and evaluation of battery cells and packs.

What is a modified technological shell?

The modified technological shell consists of an inner and outer layer. AMg3 aluminum alloy (analog of 5154 aluminum alloy) with a thickness of 3 mm was chosen as the inner soft layer; 08 ps low-carbon steel (analog of A620 carbon steel) with a thickness of 1 mm was chosen as the outer medium layer.

How to test a technological shell?

The developed technological shell was tested using the example of the rolling process of a model hard-to-deform tool steel. The Deform-2D/3D FE simulation package was chosen for numerical simulations. We used Deform-2D to perform the bulk of the work and Deform-3D to evaluate stresses at strip edges in individual cases.