Surface finish based analysis of turned titanium alloys workpieces

Huerta, Milagros; Carrilero, Manuel Sánchez; Álvarez, María Arias; Salguero, Jorge; Marcos, M.; Arroyo, P.

doi:10.1504/ijmms.2010.036064

Cited by 3 publications

(6 citation statements)

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“…11 includes the extracted profile along a straight line perpendicular to the cutting edge. This profile shows the thickness difference between BUE an BUL and it confirms that the material accumulation is produced close to the edge, after BUL formation, according with the observed in other conditions [19,20] and also in the case of the dry machining of other materials -such as Ti alloy-where BUL is formed before BUE [17,30,31]. Following with the observations made on the BUE, it must be said that the EDS analyses of the Built-Up Edge revealed -in all the cases-that its composition was very close to the alloy composition, Fig.…”

Section: Resultssupporting

confidence: 83%

“…According to [13,16,30,[33][34][35], these changes must be reflected in the evolution of the surface quality of the workpieces. In effect, Figs.…”

Section: Resultsmentioning

confidence: 99%

“…As it can be distinguished in all theses figure, the values of Ra diminishes when BUE thickness increasing. According to previous studies in Ti [30] and Al [33] it can be explained on the basis of a reduction of the tool position angle when BUE is formed. This can cause the decreasing of the height of the curve triangle formed as a turning finger.…”

Section: Resultsmentioning

confidence: 99%

“…Chemical reactions play also an important role in the BUL and BUE development in the dry machining -turning and drilling-processes of Ti alloys [29][30][31]. In effect, in [17,29] it has been proved that in the first instants of the dry machining of Ti-6Al-4 V alloy a set of stratified layers, so-called Multi Built-Up Layer (MBUL) is developed.…”

Section: Adhesion Wear Secondary Adhesion Wearmentioning

confidence: 99%

See 3 more Smart Citations

Analysis of the evolution of the Built-Up Edge and Built-Up Layer formation mechanisms in the dry turning of aeronautical aluminium alloys

Gómez-Parra

Álvarez-Alcón

Salguero

et al. 2013

Wear

Self Cite

150

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Section: Resultssupporting

confidence: 83%

“…According to [13,16,30,[33][34][35], these changes must be reflected in the evolution of the surface quality of the workpieces. In effect, Figs.…”

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Adhesion Wear Secondary Adhesion Wearmentioning

confidence: 99%

See 2 more Smart Citations

Analysis of the evolution of the Built-Up Edge and Built-Up Layer formation mechanisms in the dry turning of aeronautical aluminium alloys

Gómez-Parra

Álvarez-Alcón

Salguero

et al. 2013

Wear

Self Cite

150

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“…This is directly showing the effect of BUE formation on reamed hole geometry, while the effect on the test reproducibility was previously discussed. Huerta et al (2010) showed that surface quality is strongly influenced by the tool surface changes in form of BUE and built-up layer (BUL). Evolution of both effects provokes an Ra reduction with the length of machining.…”

Section: Wb1 Mo Wb10mentioning

confidence: 99%

Reproducibility of a reaming test

Pilný

Müller

Chiffre

2014

IJMR

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Abstract:The reproducibility of a reaming test was analysed to document its applicability as a performance test for cutting fluids. Reaming tests were carried out on a drilling machine using HSS reamers. Workpiece material was an austenitic stainless steel, machined using 4.75 m·min -1 cutting speed and 0.3 mm·rev -1 feed. A mineral straight oil and a water-based lubricant at two different oil concentrations were compared with respect to hole quality, evaluated in terms of surface finish (conventional arithmetic mean roughness Ra and roughness profiles), and hole geometry (hole diameter and roundness). Process reproducibility was assessed as the ability of different operators to ensure a consistent rating of individual lubricants. Absolute average values as well as experimental standard deviations of the evaluation parameters were calculated, and uncertainty budgeting was performed. Results document a built-up edge occurrence hindering a robust evaluation of cutting fluid performance, if the data evaluation is based on surface finish only. Measurements of hole geometry provide documentation to recognise systematic error distorting the performance test.[ He is an internationally recognised expert in manufacturing and metrology, having published over 200 technical papers in international journals and conference proceedings. His theoretical models quantifying the role of friction and lubrication in metal cutting are described in textbooks worldwide. He has been the Supervisor of more than 100 MSc students and over 20 PhD students. He has been initiator and coordinator of major framework programmes, and created and directed since its formation the Centre for Geometrical Metrology (CGM). Moreover, he has established a transnational virtual institute for geometrical metrology between DTU and Padova University. He is a Fellow of the International Academy for Production Engineering (CIRP) and panel member of the Foundation Committee of the European Society for Precision Engineering and Nanotechnologies (Euspen).

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A Study of Macrogeometrical Deviations in the Dry Turning of UNS R56400 Ti Alloy

Salguero

Gerez

Batista

et al. 2012

AMM

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The UNS R56400 is a Titanium alloy commonly used in the aircraft industry. This alloy can be processed by machining depending on its final application. Drilling and turning are the most usual machining processes for working this alloy. Aerospace requirements involve high quality levels and, if possible, an on-line monitoring in order to preserve the workpiece design conditions. The machining process can be monitored by different methods. One of the most single methods involves the analysis of the finishing quality of the workpieces. This analysis is usually related to micro and macro geometrical considerations. In this paper a study of the finishing quality of dry turned UNS R56400 Ti alloy has been achieved. This study has been carried out based on the analysis of straightness and parallelism deviations as functions of cutting parameters, such as feed and cutting speed.

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Surface finish based analysis of turned titanium alloys workpieces

Cited by 3 publications

References 0 publications

Analysis of the evolution of the Built-Up Edge and Built-Up Layer formation mechanisms in the dry turning of aeronautical aluminium alloys

Analysis of the evolution of the Built-Up Edge and Built-Up Layer formation mechanisms in the dry turning of aeronautical aluminium alloys

Reproducibility of a reaming test

A Study of Macrogeometrical Deviations in the Dry Turning of UNS R56400 Ti Alloy

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