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Yayın Effects of turn-milling conditions on chip formation and surface finish(Elsevier Science BV, 2019-04-24) Rahimzadeh Berenji, Kaveh; Karagüzel, Umut; Özlü, Emre; Budak, ErhanTurn-milling operations performed on mill-turn machines offer significant advantages provided that appropriate conditions are used. Compared to conventional machining processes, kinematics and geometry of turn-milling are more complicated due to additional parameters such as speed and diameter ratios of the tool and workpiece as well as eccentricity between them. In this study, the effects of process conditions on chip formation and surface generation are investigated. A novel approach is presented in order to select turn-milling conditions and related machine tool parameters using the relationship between the process and the machine tool.Yayın Development of turn-milling machine tool program parameters based on basic cutting geometry(2017-11-02) Berenji, Kaveh Rahimzadeh; Karagüzel, Umut; Özlü, Emre; Budak, ErhanThe turn-milling operation is a multitasking machining process that takes advantages of turning and milling operations simultaneously. However, using these two machining operations at the same time results in more complex and different cutting parameters compared to conventional turning process. In this study, the turnmilling kinematics have been modeled analytically. Using the model proposed in this study, the required parameters for a machine tool such as feed rate, workpiece, and tool rotational speed can be derived in terms of basic cutting parameters which are cutting speed, feed per tooth, radial depth of cut, and axial depth of cut.
