Papers by Keyword: Cutting Temperature Distribution

Abstract: This paper gives a new experimental approach for determination the effect of tool flank wear length on workpiece surface cutting temperature distributions. Three different tool flank wear lengths 0.3, 0.5, 1mm were given by wire cutting, which were much more useful to study the effect of tool flank wear lengths on machined workpiece surface. VarioCAM high resolution head was used to measure the cutting zone temperature distribution, and for protecting the camera lens two pieces of silicon with a thickness of 0.5 mm were put ahead of the camera.

Abstract: Cutting tools have been improved to endure severe environments in cutting operations. Especially, ceramic film coating technologies are important. Recently, film structure is optimized and tensile stress in film is controlled, as a result new tools which have the newest coating achieved double the tool life and 1.5 times higher efficiency compared with conventional tools. In tool design, progressive molding and sintering techniques allow more complicated tool shapes which have high rake angles to reduce cutting force, higher accuracy equivalent to grinding class tools and more excellent performance.

Abstract: The finite difference method was applied to simulate temperature distribution in the workpiece, cutting zone and tool in the orthogonal cutting process with multilayer coated sintered alumina tools. The analysis was conducted under different cutting speeds, while experiments were carried out to measure temperatures in different positions of the tool rake face using tools with built-in thin film thermocouples developed by the authors. The temperature distribution calculated along the rake face was consistent with experimental data. This proved that the finite difference modeling developed can be applied to the prediction of cutting temperatures of aluminum alloys for a range of ultra high cutting speeds.