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Milling Operations and Machines
Published in Zainul Huda, Machining Processes and Machines, 2020
Milling is a machining operation that involves the removal of material from a work-part by use of a rotating cylindrical tool with multiple cutting edges – a milling cutter. In milling, the work has a feed motion, whereas the cutter has speed motion (Bray, 2004). Milling machines are primarily used for machining both metallic and non-metallic solids (e.g., metal, wood, plastics, etc.). These machines find widespread applications in diversified engineering industries. For example, the aerospace industry relies on machinery with a high level of precision and accuracy to manufacture aircraft parts that fit the exact specifications of aeronautical design. Biomedical manufacturing companies produce life-saving devices that are used in hospitals and clinics across the world. The manufacture of these life-saving devices and many other engineering components involve a great deal of milling operations. In particular, gears and many machine elements can be manufactured by milling operations (see Chapter 10).
Cutting Tools
Published in David A. Stephenson, John S. Agapiou, Metal Cutting Theory and Practice, 2018
David A. Stephenson, John S. Agapiou
Factors to be selected in designing a milling cutter for a specific operation include the cutting edge geometry (rake and lead angles), cutter density, cutter diameter, entry and exit angles, and cutter construction (indexable, inserted blade, etc.) [76,105–107]. For slot and end mills, the helix angle also strongly affects cutter performance.
Computer-Aided Process Planning
Published in Awais Ahmad Khan, Emad Abouel Nasr, Abdulrahman Al-Ahmari, Syed Hammad Mian, Integrated Process & Fixture Planning, 2018
Awais Ahmad Khan, Emad Abouel Nasr, Abdulrahman Al-Ahmari, Syed Hammad Mian
Milling is the metal cutting operation that forms metal surfaces with a milling cutter. A milling cutter is a multiple-edged metal cutting tool that is circular in its transverse cross section and has teeth made in a surface of revolution. The metal is cut from workpieces by traversing them past the cutter while it rotates about the axis of a milling machine spindle [12]. The milling machine or the machine tool should be selected according to the geometry of features and the workpiece. Table 6.1 shows the detail of machining operations, machine tool, and cutting tool for the extracted features.
Modelling of carbon utilisation efficiency and its application in milling parameters optimisation
Published in International Journal of Production Research, 2019
Zhaohui Deng, Lishu Lv, Wenliang Huang, Linlin Wan, Shichun Li
The machining parameters directly affect the tool life. In order to keep a high corporate produce profit, the tool life should meet the formula in Equation (18). where is the minimum tool life, the range of indexable milling cutter life is 6-12 h based on the metal cutting manual. in this paper.