scholarly journals Chatter vibration of workpiece deformation type in cutting thin-walled cylindrical workpiece (Generation mechanism of chatter vibration)

2020 ◽  
Vol 86 (884) ◽  
pp. 19-00335-19-00335
Author(s):  
Yutaka KURITA ◽  
Yasunori OURA ◽  
Takashi TANAKA ◽  
Masahiro KAWATA
Keyword(s):  
Generation Mechanism ◽  
Chatter Vibration ◽  
Cylindrical Workpiece ◽  
Thin Walled

Dynamic Behavior of a Thin-Walled Cylindrical Workpiece During the Turning Process, Part 1: Cutting Process Simulation

2002 ◽  
Vol 124 (3) ◽  
pp. 562-568 ◽  
Author(s):  
K. Mehdi ◽  
J.-F. Rigal ◽  
D. Play
Keyword(s):  
Dynamic Behavior ◽  
Process Simulation ◽  
Point Of View ◽  
Cutting Process ◽  
Natural Phenomenon ◽  
Chatter Vibration ◽  
Turning Process ◽  
Chatter Vibrations ◽  
Cylindrical Workpiece ◽  
Thin Walled

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 behavior 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.

Chatter vibration of workpiece deformation type in cutting thin cylindrical workpiece

2017 ◽  
Vol 2017 (0) ◽  
pp. 328
Author(s):  
Ryogo KAWAMATA ◽  
Yutaka KURITA ◽  
Yasunori OURA ◽  
Takashi TANAKA ◽  
Shuhei YAMAMOTO ◽  
...  
Keyword(s):  
Chatter Vibration ◽  
Cylindrical Workpiece

Influence of Contact Positioning of Pivot Support on Machining Vibration

2021 ◽  
Author(s):  
Kotaro Mori ◽  
Iwao Yamaji ◽  
Daisuke Kono ◽  
Atsushi Matsubara ◽  
Takehiro Ishida ◽  
...  
Keyword(s):  
Rigid Body ◽  
Flat Plate ◽  
Vibration Suppression ◽  
Suppression Effect ◽  
Damping Effect ◽  
Machining Test ◽  
Cylindrical Workpiece ◽  
Support Mechanisms ◽  
Thin Walled ◽  
Body Support

Abstract The authors have studied support mechanisms for the machining of thin-walled workpieces. Previous studies have shown that the newly proposed pivot support has a vibration suppression effect on flat plate workpieces. This report clarifies the guideline for determining the placement interval for deploying this support on a cylindrical workpiece. Also, a machining test was conducted to compare the damping effect of pivot support with that of conventional rigid body support. As a result, it was found that the pivot support has an equivalent vibration suppression effect as the conventional support has. By using the proposed support, installation can be simplified while maintaining the damping effect.

Chatter Vibration of Workpiece Deformation Type in Cutting Thin Cylindrical Workpiece

2017 ◽  
Vol 2017.92 (0) ◽  
pp. P051
Author(s):  
Ryogo KAWAMATA ◽  
Yutaka KURITA ◽  
Yasunori OURA ◽  
Takashi TANAKA ◽  
Shuhei YAMAMOTO ◽  
...  
Keyword(s):  
Chatter Vibration ◽  
Cylindrical Workpiece

Chatter Vibration of Workpiece Deformation Type in Turning Thin Cylindrical Workpiece

2019 ◽  
Vol 2019.94 (0) ◽  
pp. P050
Author(s):  
Hisashi UEDA ◽  
Yutaka KURITA ◽  
Masahiro KAWATA ◽  
Takashi HARADA ◽  
Kouhei MAKISHI
Keyword(s):  
Chatter Vibration ◽  
Cylindrical Workpiece

Research on the Chatter Suppression During Machining Thin-Walled Complex Blades

2006 ◽  
Vol 532-533 ◽  
pp. 616-619
Author(s):  
Jun Xue Ren ◽  
Ding Hua Zhang ◽  
Yao Yao Shi ◽  
Zeng Qiang Wang
Keyword(s):  
Packing Material ◽  
New Method ◽  
Edge Region ◽  
Chatter Vibration ◽  
Chatter Suppression ◽  
Stiffness Optimization ◽  
Optimization Principle ◽  
Flexible Parts ◽  
Blade Tip ◽  
Thin Walled

This paper presents a new method for chatter suppression during finishing thin-walled blades. Traditionally auxiliary support is used to increase the stiffness of the structure, however, the shrink or dilate effect of the packing material, such as wax and rosin, is difficult to control, so the machining precision could not be assured. Based on the principle of stiffness optimization principle, the rigidity of the cantilever blade tip and leading/trailing edge region are improved with the non-uniform allowances distribution. The milling experiments have showed that the proposed strategy could be successfully used to realize the suppression of chatter vibration during flexible parts machining.

Influence of Cutter Geometric Parameters on the Stability of Milling Process of Thin-Walled Blades

2012 ◽  
Vol 443-444 ◽  
pp. 21-26 ◽  
Author(s):  
Wei Wei Liu ◽  
Xiao Juan Gao ◽  
Chen Wei Shan ◽  
Wei Jun Tian
Keyword(s):  
High Performance ◽  
Cutting Parameters ◽  
Milling Process ◽  
Chatter Vibration ◽  
Clamping System ◽  
Cutting Deformation ◽  
Thin Walled ◽  
Simulation Results ◽  
The Stability ◽  
New System

In this paper, a new experiment procedure is proposed to study the influence of cutter parameters and clamping methods on the stability of the milling process of thin-walled blade. A dedicated fixture is designed to carry out the experiment. Simulation results show that the new clamping system can enhance the rigidity of thin-walled blade to reduce cutting deformation and chatter vibration phenomenon. Then, cutter and cutting parameters can be optimized properly to make the system obtain high rigidity and high performance stable milling process. Industrial application indicates that the new system can improve the cutting performance and ensure the cutting quality.

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