Improvement of chatter stability in boring operations with passive vibration absorbers

Miguélez, M.H.; Rubio, Lourdes; Loya, J.A.; Fernández-Sáez, J.

doi:10.1016/j.ijmecsci.2010.07.003

Cited by 115 publications

(55 citation statements)

References 37 publications

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“…Therefore, the cutting tools are often designed with the focus on the growth of their static rigidity and damping. However, independently of tool's construction, the slenderness boundary which limits the process stability can be found [3]. This phenomenon has been described in many papers, e.g.…”

Section: Introductionmentioning

confidence: 96%

The influence of vibrations on surface roughness formed during precision boring

Korzeniewski

Znojkiewicz

2017

Archives of Mechanical Technology and Materials

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A B S T R A C TIn this paper, the analysis of vibrations on surface roughness generated during boring with the application of the conventional boring tool and one with the damper is presented. The experiments included the measurement of vibration accelerations carried out with the piezoelectric sensor, as well as the evaluation of surface roughness parameters after each machining pass. The obtained results reveal that in the investigated range, no stability loss was found. Furthermore, the growth of the rotational speed induces the increase of vibration level, as well as the growth of the differences between the vibration values generated during boring with the conventional tool and one equipped with damper. Vibrations have also the direct influence on the machined surface roughness. In case of the tool equipped with the damper, the tool's overhang L had more intense influence than rotational speed n. However, for the conventional boring tool this dependency was unequivocal. K E Y W O R D Svibrations, surface roughness, precision boring, finish cutting

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Section: Introductionmentioning

confidence: 96%

The influence of vibrations on surface roughness formed during precision boring

Korzeniewski

Znojkiewicz

2017

Archives of Mechanical Technology and Materials

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“…For the TMD with undamped primary systems, there are some common methods, such as fixed-point method, 2 norm, and ∞ optimal method. For the TMD with damped primary systems, substantive design methods and tuning criteria have been raised [9], and the TMD applied in nonlinear and distributed primary systems has been studied [10,11]. Meanwhile, energy harvesting from large-amplitude lowfrequency oscillating primary structures has emerged as a promising research area [12,13], especially from TMD [14][15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

“…Under this background, a concept of tuned massdamper/harvester (TMD/H) is presented in [20], in which the basic conversion consists of a linear voice coil motor connected to a resistance emulator consisting of rectification and variable impedance unit. Along a similar path, an electromagnetic transducer connected with an energy harvestingenabled circuit is used to transform vibration energy into electric power and also to supply controlled force vibrations 2 Shock and Vibration mitigation for TMD-equipped multilayer buildings structures in [11]. In addition, Ali and Adhikari proposed the idea of an energy harvester dynamic vibration absorber (EH-DVA) [19], in which electric energy is generated from strains developed in layers of piezoelectric material with the electric circuit mounted onto the attached vibrating mass of a TMD.…”

Section: Introductionmentioning

confidence: 99%

Wind Induced Vibration Control and Energy Harvesting of Electromagnetic Resonant Shunt Tuned Mass-Damper-Inerter for Building Structures

Luo

Sun

Wang

et al. 2017

Shock and Vibration

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This paper proposes a novel inerter-based dynamic vibration absorber, namely, electromagnetic resonant shunt tuned massdamper-inerter (ERS-TMDI). To obtain the performances of the ERS-TMDI, the combined ERS-TMDI and a single degree of freedom system are introduced. 2 criteria performances of the ERS-TMDI are introduced in comparison with the classical tuned mass-damper (TMD), the electromagnetic resonant shunt series TMDs (ERS-TMDs), and series-type double-mass TMDs with the aim to minimize structure damage and simultaneously harvest energy under random wind excitation. The closed form solutions, including the mechanical tuning ratio, the electrical damping ratio, the electrical tuning ratio, and the electromagnetic mechanical coupling coefficient, are obtained. It is shown that the ERS-TMDI is superior to the classical TMD, ERS-TMDs, and series-type double-mass TMDs systems for protection from structure damage. Meanwhile, in the time domain, a case study of Taipei 101 tower is presented to demonstrate the dual functions of vibration suppression and energy harvesting based on the simulation fluctuating wind series, which is generated by the inverse fast Fourier transform method. The effectiveness and robustness of ERS-TMDI in the frequency and time domain are illustrated.

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“…Several works have aimed at the development of more stable tools ( [12] when analyzing clamping conditions [13], by analysis of vibration spectra, and [18] by the introduction of absorbers). They allow for working with higher overhangs (or L/D ratios).…”

Section: Introductionmentioning

confidence: 99%

Tool vibration in internal turning of hardened steel using cBN tool

Suyama

Diniz

Pederiva

2016

Int J Adv Manuf Technol

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The machining of hardened materials with hardness over 45 HRC has been an alternative to grinding since the 1970s, with the commercial availability of cubic boron nitride (cBN) and ceramic tools. However, the low toughness of these types of tool materials makes them very sensitive to damages caused by vibrations, which are critical for operations like internal turning, where the tool resembles a cantilever beam and therefore is susceptible to large deflections. This work aims to contribute to the study of tool performance in internal turning of long holes in hardened AISI 4340 steel in finishing conditions. Different machining conditions, two different tool holders (steel and carbide), and several tool overhangs were tested. The surface finish, acceleration (vibration) signals, and tool wear of cBN inserts were evaluated. The results show that vibration and the material of the tool holder may play a secondary role in the surface finish for stable turning, but the use of carbide tool holders makes the process stable for longer tool overhangs. Moreover, when the cutting becomes unstable, surface roughness is increased severely.

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Improvement of chatter stability in boring operations with passive vibration absorbers

Cited by 115 publications

References 37 publications

The influence of vibrations on surface roughness formed during precision boring

The influence of vibrations on surface roughness formed during precision boring

Wind Induced Vibration Control and Energy Harvesting of Electromagnetic Resonant Shunt Tuned Mass-Damper-Inerter for Building Structures

Tool vibration in internal turning of hardened steel using cBN tool

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