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Thin Films for Cutting Tools
Published in Fredrick Madaraka Mwema, Tien-Chien Jen, Lin Zhu, Thin Film Coatings, 2022
Fredrick Madaraka Mwema, Tien-Chien Jen, Lin Zhu
It is common knowledge that cutting tools should be harder than the material being machined. Also, due to the high heat evolved during the machining process, cutting tools are subjected to very high temperatures that cause thermal stress on the object [18]. The high temperatures may lead to wear of the tool, leading to a poor-quality surface finish of the machined surface. These are some of the inefficiencies of cutting materials that are the subject of coating. Thus, coating is important in improving the properties of the cutting tool material and enhancing their protection against the extreme conditions of wear during machining.
Cutting Tools and Materials
Published in Zainul Huda, Machining Processes and Machines, 2020
A cutting tool (or a cutter) is a wedge-shaped and sharp-edged tool that is used to remove material from a workpiece by means of shear deformation in a conventional machining process. In machining, the machine tool holds the cutter and workpiece and at the same time its mechanism provides the desired cutting conditions (speed, feed, and depth of cut). The shape and size of a cutter may vary depending on the feature to be produced and the operation employed.
Introduction to Surface Tailoring of Metals
Published in B. Ratna Sunil, Surface Engineering by Friction-Assisted Processes, 2019
Machining processes involve removing of material from a workpiece by different means to attain required dimensions. The remaining workpiece is the desired component. Usually, in machining (conventional) a cutting tool is used which is having a sharp cutting edge against the workpiece to cut undesired material by applying a certain amount of load.
Development of TiCN-Co-Cr3C2-Si3N4-based cermets with improved hardness and toughness for cutting tool applications
Published in Powder Metallurgy, 2023
Balasivanandha Prabu Shanmugavel, Sri Harini Senthil Kumar, Chellammal Nandhini Aruna, Madhi Varshini Ramesh
Cutting tools are used to remove material from a workpiece through a process known as cutting. Cutting tools are used in a wide range of manufacturing and machining operations, including turning, milling, drilling and grinding. They are designed to withstand the high forces and temperatures generated during cutting and to maintain a sharp edge or point for as long as possible. The advancement in the cutting tool includes the development of new materials for cutting tools, such as cemented carbides and ceramics, which offer higher hardness, wear resistance and thermal stability. TiCN-based cermets have been used as a cutting tool material in tool making industries because of their excellent combination of mechanical properties such as hardness, wear resistance, high melting temperature, thermal conductivity and toughness [1].
An integrated decision-making approach on cutting tools and cutting parameters for machining features considering carbon emissions
Published in International Journal of Computer Integrated Manufacturing, 2019
Changle Tian, Guanghui Zhou, Qi Lu, Junjie Zhang, Zhongdong Xiao, Rui Wang
The direct effect of the cutting tools is studied by keeping all the cutting parameters at a certain level. The cutting parameters are set as: . Table 7 shows the effect of the cutting tools on processing carbon emissions, time and cost in this case. It can be seen that if the cutting parameters remains constant, the processing time does not change with cutting tools, but the carbon emissions and cost change with the cutting tools evidently. When cutting tools used in rough and finish machining are not changed, it will decrease about 0.2 kg carbon emissions and save cost about 0.3 yuan by comparing No.3 with No.4 based on the different cutting tools selection. However, when the cutting tool needs to be changed between rough and finish machining, it will decrease about 0.44 kg carbon emissions and save cost about 11 yuan by comparing No.1 with No.2 based on consideration of the different cutting tools selection. Hence, considering the cutting tools selection will have a significant impact on processing carbon emissions and cost owing to various performances in cutting tools under the same cutting parameters. In practical production, the processing carbon emissions, time and cost are different since each cutting tool has a different recommended range of the cutting parameters. The cutting parameters of each cutting tool are different from each other. It is necessary to explore the effect of the different cutting parameters on different cutting tools. (2) The various cutting parameters with different cutting tools
Automation of tool path generation in multi-process micromachine tool for micromachining of prismatic and rotational parts
Published in International Journal of Computer Integrated Manufacturing, 2018
Cutting tool selection will vary with the type of workpiece material, process conditions, feature shape and size. Tungsten carbide, cubic boron nitride, poly crystalline diamond and single crystal diamond tool materials are used for micromachining. In this work, polymethyl methacrylate, brass and stainless steel work materials are considered; accordingly the tool materials are chosen (Leo Kumar, Jerald, and Kumanan 2013) and stored into the database. Tool geometry includes shank diameter, flute length, cutting length and overall length. It will vary according to the tool size in order to maintain the tool rigidity.