Dynamic Behavior of A Thin-Walled Cylindrical Workpiece During The Turning Process, Part I : Cutting Process Simulation  

Oleh:

Mehdi, K. ; Play, D. ; J.-F. Rigal

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Journal of Manufacturing Science and Engineering vol. 124 no. 3 (Aug. 2002), page 562-568.
Topik: cutting; dynamic behaviour; thin - walled cylindrical; workpiece; turning process; cutting; simulation

Ketersediaan

Perpustakaan Pusat (Semanggi) Nomor Panggil: JJ93.3 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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Isi artikel

From a practical point of view, in machining applications, chatter vibration constitutes a major problem during the cutting process. It is becoming increasingly difficult to suppress chatter during cutting at high speeds. Many investigators have regarded chatter vibrations as a "natural" phenomenon during the cutting process and a part of the process itself. In classical machining operations with thick - walled workpieces chatter vibrations occur when the cutting depth exceeds stability limits dependent on the machine tool. On the other hand, in the case of thin - walled cylindrical workpieces, chatter vibration problems are not so simple to formulate. The main purpose of this study is to qualify the dynamic behaviour of a thin - walled workpiece during the turning process. It contains two parts : the cutting process simulation and the definition of experimental stability criteria. In the first part, a numerical model, which simulates the turning process of thin - walled cylindrical workpieces, is proposed. This model also permits obtaining workpiece responses to excitation generated by cutting forces. Finally, the stability of the process is discussed.

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