Thermomechanical model of the occurrence of oscillations in metal cutting

Асташев, В. К.; Korendyasev, George

doi:10.3103/s105261881203003x

Cited by 10 publications

(10 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Various reasons for their occurrence, in particular, caused by the nonlinearity of cutting forces, compliance of the machine elements or the part itself, cutting tool fastening conditions, turning along the surface formed on the previous revolution of the part (or tool), thermomechanical effects in the cutting zone, and etc. are detailed in modern literature [1][2][3][4][5][6][7][8][9][10]. Under certain conditions, turning with constant thickness of the removed layer (chips) can become dynamically unstable.…”

Section: Particularities Of Multi-cutter Cutting Dynamicsmentioning

confidence: 99%

Particularities of Multi-Cutter Cutting Dynamics

Gouskov¹,

Guskov²,

Panovko³

et al. 2019

SERIES OF GEOLOGY AND TECHNICAL SCIENCES

View full text Add to dashboard Cite

NAS RK is pleased to announce that News of NAS RK. Series of geology and technical sciences scientific journal has been accepted for indexing in the Emerging Sources Citation Index, a new edition of Web of Science. Content in this index is under consideration by Clarivate Analytics to be accepted in the Science Citation Index Expanded, the Social Sciences Citation Index, and the Arts & Humanities Citation Index. The quality and depth of content Web of Science offers to researchers, authors, publishers, and institutions sets it apart from other research databases. The inclusion of News of NAS RK. Series of geology and technical sciences in the Emerging Sources Citation Index demonstrates our dedication to providing the most relevant and influential content of geology and engineering sciences to our community. Қазақстан Республикасы Ұлттық ғылым академиясы "ҚР ҰҒА Хабарлары. Геология жəне техникалық ғылымдар сериясы" ғылыми журналының Web of Science-тің жаңаланған нұсқасы Emerging Sources Citation Index-те индекстелуге қабылданғанын хабарлайды. Бұл индекстелу барысында Clarivate Analytics компаниясы журналды одан əрі the Science Citation Index Expanded, the Social Sciences Citation Index жəне the Arts & Humanities Citation Index-ке қабылдау мəселесін қарастыруда. Webof Science зерттеушілер, авторлар, баспашылар мен мекемелерге контент тереңдігі мен сапасын ұсынады. ҚР ҰҒА Хабарлары. Геология жəне техникалық ғылымдар сериясы Emerging Sources Citation Index-ке енуі біздің қоғамдастық үшін ең өзекті жəне беделді геология жəне техникалық ғылымдар бойынша контентке адалдығымызды білдіреді. НАН РК сообщает, что научный журнал «Известия НАН РК. Серия геологии и технических наук» был принят для индексирования в Emerging Sources Citation Index, обновленной версии Web of Science. Содержание в этом индексировании находится в стадии рассмотрения компанией Clarivate Analytics для дальнейшего принятия журнала в the Science Citation Index Expanded, the Social Sciences Citation Index и the Arts & Humanities Citation Index. Web of Science предлагает качество и глубину контента для исследователей, авторов, издателей и учреждений. Включение Известия НАН РК. Серия геологии и технических наук в Emerging Sources Citation Index демонстрирует нашу приверженность к наиболее актуальному и влиятельному контенту по геологии и техническим наукам для нашего сообщества.

show abstract

Section: Particularities Of Multi-cutter Cutting Dynamicsmentioning

confidence: 99%

Particularities of Multi-Cutter Cutting Dynamics

Gouskov¹,

Guskov²,

Panovko³

et al. 2019

SERIES OF GEOLOGY AND TECHNICAL SCIENCES

View full text Add to dashboard Cite

show abstract

“…In figure 2b, a local high-temperature region is clearly visible in the primary shear zone during the chip formation. Such localization and the presence of a boundary sharp temperature difference between this region and the surroundings was one of the main assumptions made in the construction of a mathematical model [1]. In simulation, graphs ( Fig.…”

Section: Analysis Of Thermomechanical Oscillations Of the Cuttermentioning

confidence: 99%

“…A thermomechanical model of self-excitations during cutting was proposed in [1]. The basis of this model is the assumption that the occurrence of self-oscillations arises because the mechanical characteristics of the material, its elastic modulus, yield point, and strength, and hence the cutting force depend on the temperature.…”

Section: Introductionmentioning

confidence: 99%

“…Taking into account the reduction of cutting force with increasing temperature allows to open the relationship arising in the process of cutting, and turns cutter-blank system in a self-oscillating system with negative dissipation. The thermomechanical model proposed in [1] gives a visual qualitative description and understanding of the phenomenon of the thermomechanical self-excitation. However, the prerequisites and assumptions adopted for its construction and solution, although based on experimental data, need clarification, taking into account the actual conditions of tool-blank contact and of heat transfer to the blank, cutter, chip, and the surroundings.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Analysis of thermomechanical self-oscillation In Perpendicular Free Cutting

G.K¹

2018

IJET

View full text Add to dashboard Cite

The results of the finite element modeling and analysis of thermomechanical phenomena arising from the of cutter self-excitation in perpendicular free cutting of metals are given. It is shown that the cause of self-excitation of self-oscillations is the nonlinear temperature dependence of the blank's mechanical characteristics. Modeling detected the effects of self-excitation and the establishment of selfoscillations, revealed the conditions for the propensity to the occurrence of self-oscillations for various materials.

show abstract

“…Visualization of convective heat transfer processes in aero-and hydrodynamics has always been of considerable interest [1][2][3][4][5]. The improvement of infrared thermometry and the availability of infrared cameras have caused a rapid development in this field in recent years.…”

Section: Introductionmentioning

confidence: 99%

Experimental Set-Up for the Investigation of Thermomechanical Oscillations of Thin Heaters in Air

Nesis

Gottwald

Geber

et al. 2018

Fluids

View full text Add to dashboard Cite

The simultaneous visualization and characterization of heat transfer processes from hot vibrating objects is a challenging task. This article presents an experimental set-up for the investigation of thermomechanical oscillations in thin cylindrical heaters, allowing us to visualize convection processes using Schlieren photography, infrared photometry, and other methods. It is demonstrated that heat transfer considerably changes in the regions of parametric instability.

show abstract

Thermomechanical model of the occurrence of oscillations in metal cutting

Cited by 10 publications

References 0 publications

Particularities of Multi-Cutter Cutting Dynamics

Particularities of Multi-Cutter Cutting Dynamics

Analysis of thermomechanical self-oscillation In Perpendicular Free Cutting

Experimental Set-Up for the Investigation of Thermomechanical Oscillations of Thin Heaters in Air

Contact Info

Product

Resources

About