5-axis micro milling machine for machining micro parts

Bang, Young-bong; Lee, Kyung-min; Oh, S.H.

doi:10.1007/s00170-003-1950-1

Cited by 104 publications

(39 citation statements)

References 6 publications

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“…Most of the micromilling experiments reported in the literature were performed in miniature machine tools (MMTs) [22][23][24][25][26] or conventional machining centres with retrofitted high-speed spindles [11,15,21], which have limited stiffness or accuracy, and results may not be industrially applicable. Therefore, optimum cutting conditions from various micromilling tools, obtained directly from industrialprecision micromilling machines rather than MMTs and test beds, are desirable for micromachining, so as to bridge the gap.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation on micromilling of oxygen-free, high-conductivity copper using tungsten carbide, chemistry vapour deposition, and single-crystal diamond micro tools

Huo¹,

Cheng²

2010

Proceedings of the Institution of Mechanical Engineers, Part B:

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Insufficient experimental data from various micro tools limit industrial application of the micromilling process. This paper presents an experimental comparative investigation into micromilling of oxygen-free, high-conductivity copper using tungsten carbide (WC), chemistry vapour deposition (CVD) diamond, and single-crystal diamond micromilling tools at a uniform 0.4 mm diameter. The experiments were carried out on an ultra-precision micromilling machine that features high dynamic accurate performance, so that the dynamic effect of the machine tool itself on the cutting process can be reduced to a minimum. Micromachined surface roughness and burr height were characterized using white light interferometry, a scanning electron microscope (SEM), and a precision surface profiler. The influence of variation of cutting parameters, including cutting speeds, feedrate, and axial depth of cut, on surface roughness and burr formation were analysed. The experimental results show that there exists an optimum feedrate at which best surface roughness can be achieved. Optical quality surface roughness can be achieved with CVD and natural diamond tools by carefully selecting machining conditions, and surface roughness, R a , of the order of 10 nm can also be obtained when using micromilling using WC tools on the precision micromilling machine.

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Section: Introductionmentioning

confidence: 99%

Experimental investigation on micromilling of oxygen-free, high-conductivity copper using tungsten carbide, chemistry vapour deposition, and single-crystal diamond micro tools

Huo¹,

Cheng²

2010

Proceedings of the Institution of Mechanical Engineers, Part B:

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“…Micro features with high aspect ratios (AR), such as micro poles, gear shafts, bars and ribs, are the most commonly reported examples that are machined by micromilling [1][2][3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Micromilling of thin ribs with high aspect ratios

Zdebski

Langen

et al. 2010

J. Micromech. Microeng.

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Micro features with high aspect ratios are one of the commonly encountered geometries found in micro products. In the literature, these structures are often used in demonstrator products machined by a micromilling process. In this paper, the challenges in micromilling thin ribs with high aspect ratios have been studied. Due to the scaling effect, micro-ribs have relatively low stiffness but high natural frequency. Therefore, on the one hand, average forces have to be controlled well to avoid structural bending or even damage, while on the other hand, micro features are unlikely to be excited by the dynamic forces. The characteristics of micromilling forces and their relationships to the machining parameters, namely, feed per tooth, depth of cut and width of cut, were studied theoretically by force models. In addition, the effects of different milling strategies (up-/down-milling) and tool paths on the quality of thin features have been investigated using FEM. The results allow measures to be taken to minimize the force effects and support the micro features during machining. The experimental results verify the theoretical studies. Thin ribs about 15 μm wide and with an aspect ratio of more than 50 were machined with good form and surface quality.

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“…Many academic institutions, mainly in Europe and Asia, have been directing efforts toward the development and commercialization of smaller, even desktop-sized micro-cutting machines. These efforts have resulted in a number of compact, three to five-axis, mainly micromilling machines [7][8][9][10][11][12][13][14][15][16][17].…”

Section: Machinery For Micromillingmentioning

confidence: 99%

Limits, Modeling and Design of High-Speed Permanent Magnet Machines

Borisavljevic¹

2013

Springer Theses

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5-axis micro milling machine for machining micro parts

Cited by 104 publications

References 6 publications

Experimental investigation on micromilling of oxygen-free, high-conductivity copper using tungsten carbide, chemistry vapour deposition, and single-crystal diamond micro tools

Experimental investigation on micromilling of oxygen-free, high-conductivity copper using tungsten carbide, chemistry vapour deposition, and single-crystal diamond micro tools

Micromilling of thin ribs with high aspect ratios

Limits, Modeling and Design of High-Speed Permanent Magnet Machines

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