Modeling and analyzing the effects of air-cooled turning on the machinability of Ti–6Al–4V titanium alloy using the cold air gun coolant system

Liu, Nun-Ming; Chiang, Ko-Ta; Hung, Chen-Ming

doi:10.1007/s00170-012-4547-8

Cited by 37 publications

(17 citation statements)

References 22 publications

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“…The method of cooling the machining zone with a stream of cooled compressed air is based on the use of cold air guns (CAG) and the descriptions of its use in machining processes and grinding can be found in [60,61]. Supporting the grinding processes with the application of a cooled compressed air stream may significantly reduce the temperature in the grinding zone and allow to reduce or completely eliminate the occurrence of thermal defects [62,63].…”

Section: Methods Of Delivery Cooling Gasesmentioning

confidence: 99%

Modern Approach to Delivery Coolants, Lubricants and Antiadhesives in the Environmentally Friendly Grinding Processes

Nadolny

Kieraś

Sutowski

2020

Int. J. of Precis. Eng. and Manuf.-Green Tech.

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Control of thermal conditions in the grinding zone is possible through effective delivery of substances with cooling, lubricating and antiadhesive properties during the machining process. In addition to the benefits of coolants, however, a number of economic and ecological problems arise, which include the costs of purchase, use and maintenance as well as the environmental impact of its disposal. These negative aspects of the use of cooling and lubricating liquids have contributed to the modern trend of minimizing their output in machining processes, including grinding. This article presents comprehensive characteristics of knowledge in the field of liquids, gases and solids with cooling, lubricating and antiadhesive properties. The author’s original classification of cooling and lubricating agents by their physical state was proposed and a complete list of known modern environmentally friendly methods of cooling and lubrication of the grinding zone was presented. In order to highlight their beneficial features, the background of conventional methods of delivery coolants, lubricants and antiadhesives to the grinding zone used for years were also characterised. A comprehensive list of all known methods of cooling and lubrication of the grinding zone classified according to the physical state of the delivered medium with a clear separation of hybrid methods consisting in simultaneous delivery of many cooling and lubricating agents was described in the summary. The article concludes with the characteristics of directions of further development in the field of cooling and lubrication of the grinding zone.

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Section: Methods Of Delivery Cooling Gasesmentioning

confidence: 99%

Modern Approach to Delivery Coolants, Lubricants and Antiadhesives in the Environmentally Friendly Grinding Processes

Nadolny

Kieraś

Sutowski

2020

Int. J. of Precis. Eng. and Manuf.-Green Tech.

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“…Araştırmacılar, Al ve alaşımlarının tornalanmasında vorteks tüpünün, soğutma performansı [23][24]32] ve aşınmayı azaltma [23][24] açısından kuru işlemeye ve geleneksel soğutuculara göre daha verimli; kesme kuvveti açısından ise daha az etkin olduğunu vurgulamışlardır [33]. [33] Ti ve alaşımlarında, vorteks tüp kullanımının, kesme sıcaklığı, takım aşınması [29] ve yüzey pürüzlülüğü [29,38] Araştırmacılar, MQL ve kriyojenik soğutma ile karşılaştırıldığında, vorteks tüpünün Ti tornalama operasyonunda takım aşınması ve soğutma performansı açısından daha zayıf kaldığını vurgulamışlardır [38]. Bu nedenle; Ti alaşımları üzerine yapılan çalışmalarda yalnızca vorteks tüpü kullanımı yerine kriyojenik soğutma ile vorteks tüpü [26], soğuk su ile sis jeti [28] ya da MQL ile vorteks tüpü [35] gibi sistem kullanımları tercih edilmiş kesme performansı açısından önemli ölçüde fayda sağlanmıştır.…”

Section: şEkil 2 Vorteks Tüpünün Tornalama Operasyonunda Kullanımı [22]unclassified

Vorteks Soğutma Yöntemi̇ni̇n Talaşli İmalat Yöntemleri̇ Ve Kesme Parametreleri̇ne Göre İncelenmesi̇

Gürkan

Yaşar

Uzun

et al. 2020

Gazi Üniversitesi Fen Bilimleri Dergisi Part C: Tasarım Ve Teknoloji

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In this study, the working principle of vortex tubes and the usage in the machining was reviewed with the help of previous literature studies. The effect of vortex tubes on machining operations was evaluated in separated titles and discussed its advantages and disadvantages. Figure A. Vortex tube Purpose: In this study, the usage of vortex tubes in turning, milling, drilling and grinding operations were investigated in separated titles. The effects of vortex tube usage on tool life, surface roughness and cutting forces were evaluated. Thus, the advantageous areas of the usage of vortex tube were summarized. Theory and Methods: The effects of vortex tubes on manufacturing processes were examined under four different titles. The materials, cutting tools and the cutting parameters of the processes done with vortex tube were stated in detail. Results: The effect of vortex tube usage in cutting performance was evaluated separately for each of four machining operations in Discussion and Finding section. Conclusion: When the previous studies investigated, the literature of the usage of vortex tube was concentrated upon turning and milling operations in general.

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“…Besides optimizing the process parameters and tool properties to prevent high temperature generated by machining titanium alloys, some researchers tended to utilize other techniques such as hybrid machining [19] and cooling system [20]. Liu et al [21], studied turning of Ti6Al4V alloys using cool air gun cooling system which showed lower values of cutting temperature compared with dry condition. Qin et al [22], studied machinability of titanium alloy under dry machining and minimum quantity lubrication (MQL).…”

Section: Introductionmentioning

confidence: 99%

Relative performance of coated ceramic and CBN inserts in hard turning of Ti6Al4V alloy

Abdelnasser

Barakat

Elsanabary

et al. 2020

Port-Said Engineering Research Journal

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Characteristics of cutting insert are key factors for the reliability of machining of difficult-to-cut materials such as Ti6Al4V alloy. Therefore, in this paper a comparison between the performance of two different materials, ceramic insert coated by (Al2O3+TiNC) and CBN, when turning Ti6Al4V alloy in dry environment. Effect of process parameters, feed rate, cutting speed and depth of cut, and their interactions on measured cutting temperature were examined for both inserts. Taguchi method was utilized to design of experiments (L9) and the results were analyzed by analysis of variance (ANOVA). From the results, CBN insert showed a good behavior for heat dissipation during machining compared with coated ceramic insert with a reduction in cutting temperature by 28%. Moreover, it was found that cutting temperature increased by increase in cutting speed and depth of cut and decrease in feed rate when using the two types of insert. In addition, it was observed that cutting temperature was affected by varying process parameters when machining by CBN insert more than the case of coated ceramic tool. The significant parameter affected cutting temperature in the case of CBN was feed rate followed by cutting speed. While at coated ceramic insert, the most significant parameters effect on cutting temperature was cutting speed.

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Modeling and analyzing the effects of air-cooled turning on the machinability of Ti–6Al–4V titanium alloy using the cold air gun coolant system

Cited by 37 publications

References 22 publications

Modern Approach to Delivery Coolants, Lubricants and Antiadhesives in the Environmentally Friendly Grinding Processes

Modern Approach to Delivery Coolants, Lubricants and Antiadhesives in the Environmentally Friendly Grinding Processes

Vorteks Soğutma Yöntemi̇ni̇n Talaşli İmalat Yöntemleri̇ Ve Kesme Parametreleri̇ne Göre İncelenmesi̇

Relative performance of coated ceramic and CBN inserts in hard turning of Ti6Al4V alloy

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