Cemented carbide materials are key in tool manufacturing, nowadays widely used in cutting, forming and other manufacturing processes. Commonly applied methods for obtaining their strain-rate dependent material properties are insufficient due to the high hardness, mechanical strength and low deformability. In this paper, we produce relevant data for stress-strain and strain-rate curves up to strain rates of approximately 200 s⁻¹ with the aid of a developed FEM-supported evaluation method for remaining imprints on cemented carbide surfaces after applying impact loads at various durations and magnitudes. Regarding the impact duration, the impact loads were dynamically generated via electromagnetic or piezoelectric devices. The attained data are relevant to several applications including calculations to determine the stress and strain fields developed in cemented carbide tools imposed by impact loads at various conditions.

硬质合金材料是工具制造中的关键，如今已广泛用于切削，成型和其他制造工艺中。由于其高硬度，机械强度和低可变形性，获得其应变率相关材料特性的常用方法不足。在本文中，我们为应力-应变曲线和应变率曲线提供了相关数据，直至应变率约为200 s ^-1借助开发的受FEM支持的评估方法，在施加不同持续时间和大小的冲击载荷后，可在硬质合金表面上留下痕迹。关于冲击持续时间，冲击负荷是通过电磁或压电装置动态产生的。所获得的数据与几种应用相关，包括计算以确定硬质合金刀具在各种条件下施加的冲击所产生的应力场和应变场。