Energy Efficient Machining of Titanium Alloys by Controlling Cutting Temperature and Vibration

Wang, Zhigang; Nakashima, Shogo; Larson, Mark V.

doi:10.1016/j.procir.2014.01.134

Cited by 20 publications

(10 citation statements)

References 8 publications

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“…Hence, in order to minimize the serrated chipping, tool wear must be regulated to the acceptable level without sacrificing the machining productivity. With this aim, one possible solution is to develop prediction model of energy efficient machining of titanium alloys by controlling inherent cutting temperature and vibration generated [33], which will allow choosing the optimum machining conditions including cutting parameters to enhance the tool life.  A more regular progressive abrasion between the flank face of tool and workpiece is found to be the underlying wear mechanism and small edge chipping and/or plastic deformation for prolonged cutting are noticed for the uncoated tool.…”

Section: Cutting Toolsmentioning

confidence: 99%

Comparative study between wear of uncoated and TiAlN-coated carbide tools in milling of Ti6Al4V

et al. 2017

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As is recognised widely, tool wear is a major problem in machining of difficult-to-cut titanium alloys. Therefore, it is of significant interest and importance to understand and determine quantitatively and qualitatively tool wear evolution and the underlying wear mechanisms. The main aim of this paper is to investigate and analyse wear, wear mechanisms along with surface and chip generation of uncoated and TiAlN coated carbide tools in a dry milling of Ti6Al4V alloys. Quantitative flank wear and roughness were measured and recorded. Optical and SEM observations of tool cutting edge, machined surface and chips were conducted. Results show that the TiAlN coated tool exhibits approximately 44% longer tool life than the uncoated tool at a cutting distance of 16 m. A more regular progressive abrasion between the flank face of tool and workpiece is found to be the underlying wear mechanism. The TiAlN coated tool generates smooth machined surface with a 31% lower roughness than the uncoated tool. As is expected, both tools generate the serrated chips; however, burnt chips with blue colour are noticed for the uncoated tool as the cutting continues further. The results are shown to be consistent with observation of other researchers, and further imply that the coated tools with appropriate combination of cutting parameters would be able to increase the tool life in cutting of titanium alloys.

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Section: Cutting Toolsmentioning

confidence: 99%

Comparative study between wear of uncoated and TiAlN-coated carbide tools in milling of Ti6Al4V

et al. 2017

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“…Various investigations have been conducted to achieve the most favourable cutting conditions by optimizing the process parameters and therefore improving sustainable machining of titanium alloys thereby improving sustainability. Typically, combinations of the three basic machining parameters, that is, cutting speed, feed rate, and depth of cut, 16–24 are varied and optimized.…”

Section: Previous Work On Sustainable Machining Of Titanium Alloysmentioning

confidence: 99%

“…Sustainable machining of Ti-6Al-4V was investigated by Wang et al 17 by optimizing process parameters for minimizing tool wear and maintaining stable machining conditions. A solid carbide end mill (12.7 mm) was used to machine Ti-6Al-4V under flood cooled conditions.…”

Section: Previous Work On Sustainable Machining Of Titanium Alloysmentioning

confidence: 99%

Sustainable machining of titanium alloys: A critical review

Gupta

Laubscher

2016

Proceedings of the Institution of Mechanical Engineers, Part B:

172

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The three main pillars of sustainability are the society, the environment, and the economy (people, planet, and profit). The key drivers that sustain these three pillars are energy and resource efficiency, a clean and ‘green’ environment that incorporates effective waste reduction and management, and finally cost-effective production. Sustainable manufacturing implies technologies and/or techniques that target these key drivers during product manufacture. Because of the effort and costs involved in the machining of titanium and its alloys, there is significant scope for improved sustainable manufacturing of these materials. Titanium and its alloys are extensively used for specialized applications in aerospace, medical, and general industry because of their superior strength-to-weight ratio and corrosion resistance. They are, however, generally regarded as difficult-to-machine materials. This article presents an overview of previous and current work and trends as regards to sustainable machining of titanium and its alloys. This article focuses on reviewing previous work to improve the sustainable machining of titanium and its alloys with specific reference to the selection of optimum machining conditions, effect of tool materials and geometry, implementing advanced lubrication and/or cooling techniques, and employing advanced and hybrid machining strategies. The main motivation is to present an overview of the current state of the art to discuss the challenges and to suggest economic and environment-friendly ways for improving the machinability of titanium and its alloys.

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“…При Следует учитывать, что много деталей для аэрокосмической промышленности изготавливается из алюминия и титана [8]. Титан является сложным для обработки металлом ввиду ряда обстоятельств, описанных в [8,9] Высокоскоростная обработка (ВСО) является основной стратегией пятиосевой обработки [15]. Принцип ВСО -малое сечение среза, снимаемое с высокой скоростью резания при большой частоте вращения шпинделя и минутной подаче (рис.…”

Section: классификация пятиосевых станковunclassified

Five-axis machining on CNC milling machines

Bondar¹,

Krivoruchko²

2017

Bulletin of the National Technical University «KhPI» Series: New Solutions in Modern Technologies

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АННОТАЦИЯ В настоящее время, детали машин становятся все более сложными и точными. Это требует развития новых технологий механической обработки. В этих условиях многоосевая обработка на фрезерных станках с ЧПУ является одной из таких технологий. Несмотря на 20-ти летнюю историю развития этот подход все еще требует повышения эффективности для реализации современных задач. В работе представлена классификация пятиосевых станков и описаны сферы их применения. Рассмотрены преимущества и проблемы пятиосевой обработки. Проанализированы современные методы повышения ее эффективности. Ключевые слова: пятиосевая обработка; высокоскоростная обработка; стратегия обработки; траектория обработки; вибрация ABSTRACT At the present time, the parts of the machines are becoming more complex and precise. This requires the development of new machining technologies. In these conditions, multi-axis CNC machining is one of those technologies. In spite of the 20-year history of development, this approach still requires increasing efficiency in implementation to modern tasks. This article presents classification of the five-axis machines depending of the Z-axis location and the axis types and configuration. By default, Z-axis is spindle axis, and therefore, spindle location is determines the machine type (a vertical or horizontal machine). The particular configuration depends on which two of the three rotation axes are used and where they are located. Catalogues review gave the advantages, features and fields of the application of the particular configuration of five-axis machines. This article shows that path generation and vibrations are the main keypoints for improvement of five-axis machining. Path strategies evaluates from linear to advanced trochoidal with features detection. The high-speed machining is the main approach for finish five-axis machining, but other approaches are also used. Because of lower rigidity the vibration during five-axis machining could be both regenerative and forces depending on tool rotation speed and rigidity of machining system. The traditional methods for vibration decreasing are not effective often.

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Energy Efficient Machining of Titanium Alloys by Controlling Cutting Temperature and Vibration

Cited by 20 publications

References 8 publications

Comparative study between wear of uncoated and TiAlN-coated carbide tools in milling of Ti6Al4V

Comparative study between wear of uncoated and TiAlN-coated carbide tools in milling of Ti6Al4V

Sustainable machining of titanium alloys: A critical review

Five-axis machining on CNC milling machines

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