Experimental study on surface integrity of cryogenically machined Ti-6Al-4V alloy for biomedical devices

Hardt, M.; Klocke, Fritz; Döbbeler, Benjamin; Binder, Marvin; Jawahir, I.S.

doi:10.1016/j.procir.2018.05.094

Cited by 13 publications

(5 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Since in conventional cutting the lubricant is continuously reused and only periodically refilled or substituted, the associated primary power is lower Thus, changing the perspective to a higher level makes the considerations outlined in Section 3.4 completely reviewed. It is important to observe that this analysis took into consideration the primary power consumption, but it was not focused on other environmental aspects like global warming, acidification, water usage and solid wasted [35] or features linked to the quality of the processed parts [36,37].…”

Section: Primary Power Assessment Resultsmentioning

confidence: 99%

“…System development [39](O,dm,m1,c5) [44](M,dm,th,c0) [17](M,nb,tw,c5) [18](M,dm,m1,c5) [19](M,nb,tw,c5) [20](M,tb,tw,c1) [21](M,tb,tw,c1) Process optimization [41] (T,nb,m1,c5) [53] (T,nb,m1,c5) Assessment and corresponding adopted methodology Experimental [43](M,tb,th,c5) [57](M,tb,m1,c5) [58](T,tb,m2,c0) [38](T,nb,m2,c1) [10] (T,tb,m2,c5) [60](M,tb,m2,c5) [63] (T,tb,m1,c1) [64](T,tb,f,c1) [65](T,tb,m1,c6) [66](T,tb,tw,c1) [67](T,tb,m1,c6) [68](T,tb,m1,c6) [69](O,st,en,c5) [70](T,tb,m1,c1) [36](T,tb,m1,c1) [37](M,tb,m1,c5) [55](T,tb,m1,c5) [54](T,tb,m1,c6) [47](T,st,m1,c6) [40](T,st,m1,c0) [56](M,tb,m1,c1) [50](M,tb,tw,c1) [52](T,st,m1,c5) [42](O,tb,m2,c5) [51](M,tb,tw,c1) [13] (T,tb,en,c1) [22](O,st,m1,c1) [23](T,st,m2,c5) [24](M,nb,m1,c5) [25](M,nb,m1,c5) [27](T,dm,tw,c5) [28](M,tb,tw,c5) [29](T,tb,m1,c5) [26](M,tb,tw,c5) [30](T,dm,m1,c1)…”

Section: Introductionmentioning

confidence: 99%

“…According to [32][33][34][35], the expected advantages of cryogenic machining are related to the potential increment of material removal rates (MRR), the extension of the tool life and the enhancement of the quality/integrity of processed surfaces [36,37], and it prevents the oil contamination of the parts, chips and machine. Pusavec et al in [38] tried to formalize all these aspects to compare different CL solutions.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Energy assessment of different cooling technologies in Ti-6Al-4V milling

Albertelli

Monno

2021

Int J Adv Manuf Technol

View full text Add to dashboard Cite

Manufacturing craves for more sustainable solutions for machining heat-resistant alloys. In this paper, an assessment of different cooling lubrication approaches for Ti6Al4V milling was carried out. Cryogenic cutting (liquid nitrogen) and conventional cooling (oil-based fluid) were assessed with respect to dry cutting. To study the effects of the main relevant process parameters, proper energy models were developed, validated and then used for comparing the analysed cooling lubrication strategies. The model parameters were identified exploiting data from specifically conceived experiments. The power assessment was carried out considering different perspectives, with a bottom-up approach. Indeed, it was found that cryogenic cooling, thanks to a better tribological behaviour, is less energy demanding (at least 25%) than dry and conventional cutting. If the spindle power is considered, lower saving percentages can be expected. Cryogenic cooling showed its best energy performance (from 3 to 11 times) with respect to conventional cutting if the machine tool perspective is analysed. Considering even the primary energy required for producing the cutting fluids, the assessment showed that cryogenic cooling requires up to 19 times the energy required for conventional cutting.

show abstract

Section: Primary Power Assessment Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Energy assessment of different cooling technologies in Ti-6Al-4V milling

Albertelli

Monno

2021

Int J Adv Manuf Technol

View full text Add to dashboard Cite

show abstract

“…Relatively low surface roughness was found with a feed rate of 0.2 mm/rev and a cutting speed of 80 m/min for dry machining. Hardt et al [6] used conventional flood and cryogenic cooling. The experiments were conducted at a constant depth of cut of 0.2 and a cutting speed in the range of 75-150 m/min and a feed rate in the range of 0.05-0.125 mm/rev.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the Surface Topography of Ti6Al4V Alloy after the Finish Turning Process under Ecological Conditions

Maruda¹,

Leksycki²,

Wojciechowski³

et al. 2023

Adv. Sci. Technol. Res. J.

View full text Add to dashboard Cite

This paper describes findings in the surface topography of Ti6Al4V alloy after finish turning process under dry and MQL (minimum quantity lubrication) machining. The research was fulfilled in the range of variable feeds per revolution of 0.005-0.25 mm/rev and cutting speeds of 40-100 m/min using the depth of cut of 0.25 mm that fits finish processing conditions. The test plan was developed on the way to use the Parameter Space Investigation (PSI) method. The topography features were measured by a Sensofar S Neox optical profilometer using the Imaging Confocal Microscopy technique. Ra parameters and surface roughness profiles as well as 2D images and contour maps were analyzed. Under the studied machining conditions, lower Ra roughness parameters are obtained in the feed rate of 0.005-0.1 mm/rev and cutting speeds of 40-60 m/min. In comparison with dry machining, up to 17% reduction in Ra parameter values was obtained using the MQL method and v c = 70 m/min and f = 0.127 mm/rev as well as v c = 47.5 m/min and f = 0.22 mm/rev. Depending on the machining conditions, peaks and pits as well as feed marks typical for the turning process are observed on the machined surfaces.

show abstract

“…Low density, light weight [1,2], corrosion and chemical resistance [3,4], good mechanical properties [5][6][7] and biocompatibility [8,9] are the reasons why titanium (Ti)-based materials are utilized in a wide range of industries such as shipbuilding [10], aerospace [11], aircraft [12] and automotive [13]. It is due to the non-toxicity and biocompatibility that the titanium-based materials are also very popular in dental and orthopaedic implantology [14][15][16][17][18][19]. They are used as a commercially pure (CP) Ti with different degrees of purity influencing their mechanical properties, as multicomponent metallic alloys or as Ti metal matrix composites (TiMMCs) reinforced with different types of particles or whiskers.…”

Section: Introductionmentioning

confidence: 99%

Laser-Based Ablation of Titanium–Graphite Composite for Dental Application

et al. 2020

View full text Add to dashboard Cite

Biocompatible materials with excellent mechanical properties as well as sophisticated surface morphology and chemistry are required to satisfy the requirements of modern dental implantology. In the study described in this article, an industrial-grade fibre nanosecond laser working at 1064 nm wavelength was used to micromachine a new type of a biocompatible material, Ti-graphite composite prepared by vacuum low-temperature extrusion of hydrogenated-dehydrogenated (HDH) titanium powder mixed with graphite flakes. The effect of the total laser energy delivered to the material per area on the machined surface morphology, roughness, surface element composition and phases transformations was investigated and evaluated by means of scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), confocal laser-scanning microscopy (CLSM) and X-ray diffraction analysis (XRD). The findings illustrate that the amount of thermal energy put to the working material has a remarkable effect on the machined surface properties, which is discussed from the aspect of the contact properties of dental implants.

show abstract

Experimental study on surface integrity of cryogenically machined Ti-6Al-4V alloy for biomedical devices

Cited by 13 publications

References 16 publications

Energy assessment of different cooling technologies in Ti-6Al-4V milling

Energy assessment of different cooling technologies in Ti-6Al-4V milling

Evaluation of the Surface Topography of Ti6Al4V Alloy after the Finish Turning Process under Ecological Conditions

Laser-Based Ablation of Titanium–Graphite Composite for Dental Application

Contact Info

Product

Resources

About