Using molecular dynamics simulation, we perform simulations of cutting a CuZr metallic glass at a wide range of rake angles. Plasticity in the metallic glass is governed by the formation of parallel shear bands in the chip. The chip is clearly separated from the uncut workpiece by a primary shear zone, from which the shear angle can be easily determined. The dependence of the shear angle on the rake angle and the friction angle follows closely Merchant’s theory of cutting. This agreement is particularly pronounced in the case that the force exerted on the workpiece is far from the cutting direction; this occurs for negative rake angles.

中文翻译：

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切割理论在金属玻璃纳米切割中的适用性：原子模拟

使用分子动力学模拟，我们进行了在宽前角范围内切割CuZr金属玻璃的模拟。金属玻璃中的可塑性取决于切屑中平行剪切带的形成。切屑通过一个主剪切区与未切割的工件明显分开，从该剪切区可以轻松确定剪切角。剪切角与前角和摩擦角的关系密切遵循Merchant的切削理论。在施加在工件上的力远离切削方向的情况下，这种一致性特别明显。对于负前角会发生这种情况。