Research on the modeling of burr formation process in micro-ball end milling operation on Ti–6Al–4V

Chen, M. J.; Ni, Haibo; Wang, Z. J.; Jiang, Yu

doi:10.1007/s00170-011-3865-6

Cited by 88 publications

(35 citation statements)

References 14 publications

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“…During micro-milling process, chips generated move upward along the rake face of the cutting tool and the material that is in contact with the chips and workpiece pulls apart under large tensile stress. A part of this deformed material remains attach to the top surface and not taken away with the chips as a result of this top burrs are initiated (Chen et al, 2012). Figure 4 illustrates how top burr width is measured and it can be described as horizontal length of burr from groove wall (Thepsonthi and Özel, 2012).…”

Section: Resultsmentioning

confidence: 99%

“…Therefore, to minimize the effect of residual effects feed rate was selected above tool edge radius between 8 and 12 µm tooth −1 . In literature, reported cutting speed varies between 16 m min −1 (10 000 rpm) and 141 m min −1 (90 000 rpm) (Bajpai et al, 2013;Chen et al, 2012;Jaffery et al, 2016;Jaffery and Mativenga, 2009;Kim et al, 2014;Özel et al, 2011;Özel, 2012, 2013). While this research focuses on machining below the reported minimum cutting speed or in the range of conventional cutting speed below 10 000 rpm.…”

Section: Design Of Experimentsmentioning

confidence: 99%

“…For every tool, according to its diameter, there is recommended value of ap to be used. According to Niagara Cutter (Cutter, 2018 Therefore, in this research depth of cut was selected between 25-125 µm. Process parameters and level details are given in Table 5.…”

Section: Design Of Experimentsmentioning

confidence: 99%

“…The review of literature shows that burr formation in micro-machining of different materials has been studied extensively and most of the research done on micro-milling of Ti-6Al-4V alloy is in the region of high speed machining (10 000-90 0000 rpm) (Bajpai et al, 2013;Chen et al, 2012;Jaffery et al, 2016;Jaffery and Mativenga, 2009;Kim et al, 2014;Özel et al, 2011;Özel, 2012, 2013). However, no research has been reported on micro-milling of Ti-6Al-4V alloy below 10 000 rpm.…”

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confidence: 99%

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Analysis of Burr Formation in Low Speed Micro-milling of Titanium Alloy (Ti-6Al-4V)

et al. 2018

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Abstract. The use of titanium based alloys in aerospace and biomedical applications make them an attractive choice for research in micro-machining. In this research, low speed micro-milling is used to analyze machinability of Ti-6Al-4V alloy as low speed machining setup is not expensive and it can be carried out on conventional machine tools already available at most machining setups. Parameters like feed per tooth, cutting speed and depth of cut are selected as machining variables and their effect on burr formation is analyzed through statistical technique analysis of variance to determine key process variables. Results show that feed per tooth is the most dominant factor in burr formation (81 % contribution ratio). The effect of depth of cut was found to be negligible. It was also observed that micro-milling at optimum process parameters showed minimum burr formation. In terms of burr formation, as compared to high speed machining setup, better results were achieved at low speed machining setup by varying machining parameters.

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Section: Resultsmentioning

confidence: 99%

Section: Design Of Experimentsmentioning

confidence: 99%

Section: Design Of Experimentsmentioning

confidence: 99%

mentioning

confidence: 99%

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Analysis of Burr Formation in Low Speed Micro-milling of Titanium Alloy (Ti-6Al-4V)

et al. 2018

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“…Instead of measuring techniques, research has been focused on burr reduction for micro-milling, through experimentation [9,12,32,35] or simulation [36][37][38] by varying the process parameters or deburring after machining. The formation of burrs in the macro-milling process has been studied extensively through experimental and predictive analytical modeling, but in the micro-scale, very little work has been reported in the literature.…”

Section: Burr Formationmentioning

confidence: 99%

Burr formation and control for polymers micro-milling: A case study with vortex tube cooling

Giraldo¹,

Serje²,

Bolívar³

et al. 2017

DYNA

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Micro-machining of different polymer based components often require high precision and excellent surface quality at high production rates with low costs. Micro-milling is a cost-efficient micro-machining process capable of generating complex shapes in a wide range of materials. Challenges based on size effect, burr formation and adequate chip removal must be faced and are addressed in this research. Material removal mechanisms, as well as its impact on burr formation and control are reviewed, followed by a case study through the application of gaseous cooling based on vortex tubes. Different vortex generator configurations were tested, proving to be fast response an economically-friendly alternative for burr reduction while micro-milling biopolymers. Configurations, as mentioned above, were used for biopolymer micro-milling towards burr measurement after each test; achieving as a result, a burr reduction while cooling temperature decreases.Keywords: Micro-milling; Burr; Polymer machining; Vortex cooling.Formación de rebabas y su control para el micro-fresado de polímeros: Un caso de estudio con refrigeración por tubo vortex Resumen El micro-maquinado de diferentes componentes basados en polímeros a menudo requiere de gran precisión y un excelente acabado superficial a unas tasas elevadas de producción con un bajo costo. El micro-fresado es un proceso costo-efectivo de micro-maquinado capaz de generar formas complejas en una amplia variedad de materiales. Retos basados en el efecto tamaño, formación de rebabas y una adecuada remoción de la viruta deben ser enfrentados y son tratados en la presente investigación. Los mecanismos de remoción de material, al igual que su impacto en la formación de rebabas y su control, son revisados, acompañados de un caso de estudio a través de la aplicación de refrigeración gaseosa basada en tubos vortex. Diferentes configuraciones de generadores de vortex son probados, demostrando ser una alternativa de respuesta rápida, económica y amigable para la reducción de rebabas mientras se micro-fresan biopolímeros. Dichas configuraciones se utilizaron en el micro-mecanizado de un polímero bio-compatible, midiendo el tamaño de rebaba que se genera en cada prueba, dando como resultado la disminución de estas a media que baja la temperatura de refrigeración.Palabras clave: Micro-fresado; Rebaba; Maquinado de polímeros; Refrigeración con tubo vortex.

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Micro Milling

Kuram¹,

Özçelik²

2014

Materials Forming, Machining and Tribology

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Research on the modeling of burr formation process in micro-ball end milling operation on Ti–6Al–4V

Cited by 88 publications

References 14 publications

Analysis of Burr Formation in Low Speed Micro-milling of Titanium Alloy (Ti-6Al-4V)

Analysis of Burr Formation in Low Speed Micro-milling of Titanium Alloy (Ti-6Al-4V)

Burr formation and control for polymers micro-milling: A case study with vortex tube cooling

Micro Milling

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