Influence of Spindle Wobble in Turning on the Workpiece’s Surface Topology

Zakovorotny, V. L.; Gvindjiliya, Valery

doi:10.3103/s1068798x18100192

Cited by 9 publications

(8 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The authors also consider parametric self-excitation for the system the parameters of which are periodic time functions. There are also papers analyzing a dynamic modification of system properties in the course of functioning [30][31][32]. The present article develops the mentioned research for the case when the system parameters are changed due to the energy emitted in the conjunction the system -environment.…”

Section: Statement Of the Research Problemmentioning

confidence: 99%

The energy efficiency of the process of metal cutting at the expense of the sustainability of the evolutionary trajectory of the cutting

et al. 2019

View full text Add to dashboard Cite

The problem of ensuring the sustainability of the processing process is directly related to the energy efficiency of the entire processing process. Virtually any machine the control of motion of which is considered interacts with the environment (technological, aerodynamic, trybologic, etc.). If one sticks to the synergetic analytical concept, the influence of the environment is described by a model of forces in state coordinates. The interaction is also characterized by the irreversible transformation capacity trajectory on the work. As a result, the system parameters are change causing additional strain displacements changing the trajectory. This transformation characterizes internal control and they are defined not by external action but by internal self-organization and defines the evolutionary trajectory. The properties of the system along the evolutionary trajectory change and the trajectory can lose its stability. The article considers the process of mathematical simulation of the evolutionary trajectory forming by the example of metalwork by cutting at turning machines and analyzes its stability. The evolution is presented as the parameters of the system depending on the capacity and work trajectory and presented by the Volterra integral equation of the second kind. When the trajectory loses its stability, irreversible changes can be formed in the system which may cause a complete system breakdown. In addition, the loss of stability leads to an increase in the oscillation amplitude of the tool and, as a consequence, an increase in energy costs for processing.

show abstract

Section: Statement Of the Research Problemmentioning

confidence: 99%

The energy efficiency of the process of metal cutting at the expense of the sustainability of the evolutionary trajectory of the cutting

et al. 2019

View full text Add to dashboard Cite

show abstract

“…В-третьих, изучено влияние вибраций, вводимых в зону резания самим станком (биения шпинделя, кинематические и другие возмущения, периодические вариации припуска и пр.) [35][36][37][38]. Эти возмущения лежат в низкочастотной области, существенно меньшей собственных частот колебательных контуров, определяемых подсистемами инструмента и заготовки.…”

Section: Equipment Instrumentsunclassified

“…Эти возмущения лежат в низкочастотной области, существенно меньшей собственных частот колебательных контуров, определяемых подсистемами инструмента и заготовки. Рассмотрены бифуркации притягивающих множеств деформационных смещений в зависимости от биений [36], а также влияние вибрационных возмущений от приводов на геометрическую топологию поверхности детали [38]. В статье ставится цель развить известные исследования в направлении изучения влияния вибраций на процесс резания в широком частотном диапазоне, превышающем собственные частоты колебательных контуров, определяемых взаимодействующими подсистемами со стороны инструмента и заготовки.…”

Section: Equipment Instrumentsunclassified

See 1 more Smart Citation

The Influence of the Vibration on the Tool Shape-Generating Trajectories when Turning

Zakovorotny¹,

Gvindjiliya²

2019

Metal Working and Material Science

View full text Add to dashboard Cite

“…"Environmental technologies in mechanical engineering" no reports were announced. When studying the energy efficiency of production, scientists usually pay attention to the essence of the workpiece processing and try to reduce energy costs by controlling the parameters of the process [1][2][3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Technological prerequisites for the energy efficiency increase of the engine cylinder bore processing

Safarova¹,

Malikov

Yamnikov

et al. 2021

E3S Web Conf.

View full text Add to dashboard Cite

An example of the rationalization of the current technology for manufacturing a cylinder of a small-sized diesel engine at PA “TULAMASHZAVOD” from a cast iron is given. It is shown that lowpower obsolete equipment leads to an increase in the number of technological operations and equipment used. However, even if all the generally accepted technological recommendations are followed, only 80% of the parts meet the requirements for the required parameters of accuracy and quality of the cylinder bore surface. Studies have found that the main reasons for insufficient quality are the presence of residual stresses in the casting, which cannot be removed during artificial aging, as well as insufficient accuracy and rigidity of metal cutting equipment at turning and boring operations. The use of more powerful and accurate modern equipment is theoretically and experimentally justified, which, due to increased refinement, allows reducing the number of machining operations. Replacement of artificial thermal aging by natural, combined with the replacement of shaft furnaces for heat treatment of workpieces with chamber furnaces of lower power and higher capacity, reduce energy consumption for the manufacturing by almost 4 times.

show abstract

Influence of Spindle Wobble in Turning on the Workpiece’s Surface Topology

Cited by 9 publications

References 7 publications

The energy efficiency of the process of metal cutting at the expense of the sustainability of the evolutionary trajectory of the cutting

The energy efficiency of the process of metal cutting at the expense of the sustainability of the evolutionary trajectory of the cutting

The Influence of the Vibration on the Tool Shape-Generating Trajectories when Turning

Technological prerequisites for the energy efficiency increase of the engine cylinder bore processing

Contact Info

Product

Resources

About