DLC has been applied as coating material in the machining of difficult-to-cut materials, and shows a good cutting performance. In this study, Cr/W-DLC/DLC-coated tools were compared with other three kinds coated (TiC-, TiAlN-, Al2O3-) to investigate performance Al–Si alloy. The influence on under different speeds was studied. Cutting force, temperature, heat partition coefficient, deformation r...

CFRP materials are widely used in special environments, and it has excellent mechanical properties. However, processing is very difficult, especially the process of using traditional cutting methods, due to its heterogeneity anisotropy. In this work, based on failure mechanism materials, we studied cutters milling processing, modeled analyzed conducted orthogonal experiments composite materials...

Observations are made regarding the influence of cutting speed and friction on cutting force by way of finite element modeling. Simulations are validated by comparison of cutting forces and chip morphologies for the Al6061-T6. Analysis of cutting forces over a wide range of cutting conditions suggests an important role of the secondary shear zone in the decrease of cutting force as a function o...

This paper discusses cake-cutting protocols when the cake is a heterogeneous good, represented by an interval on the real line. We propose a new desirable property, the meta-envy-freeness of cake-cutting, which has not been formally considered before. Meta-envy-free means there is no envy on role assignments, that is, no party wants to exchange his/her role in the protocol with the one of any o...

This paper discusses cake-cutting protocols when the cake is a heterogeneous good that is represented by an interval in the real line. We propose a new desirable property, the meta-envy-freeness of cake-cutting, which has not been formally considered before. Though envy-freeness was considered to be one of the most important desirable properties, envy-freeness does not prevent envy about role a...

the micro milling operation is one of the manufacturing processes, which can produce 3d parts in the range of less than a millimetre. miniaturization of components results in increasing the ratio of surface area to volume of components, which in turn increases the role of surface on the component performance. therefore, anticipating the relationship between micro milling parameters and surface ...

Micropolar plasticity provides the capability to carry out post-failure simulations of geo-structures due to microstructural considerations and embedded length scale in its formulation. An essential part of the numerical implementation of a micropolar plasticity model is the integration of the rate constitutive equations. Efficiency and robustness of the implementation hinge on the type of int...

This paper presents the recent redesign of a tangent-cutting machine for CAM-LEM (Computer-Aided Manufacturing of Laminated Engineering Materials). Our former 5-axis, serial-joint, open-chain mechanism for laser cutting has been reduced to two parallel, 2-axis kinematic chains and articulated optics. The redesign results in lower inertias, higher stiffnesses, and less calibration sensitivity to...