Micromachining of PMMA—manufacturing of burr-free structures with single-edge ultra-small micro end mills

Reichenbach, Ingo G.; Bohley, Martin; Sousa, Fábio José Pinheiro; Aurich, Jan C.

doi:10.1007/s00170-018-1821-4

Cited by 31 publications

(17 citation statements)

References 26 publications

(34 reference statements)

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“…According to the results of PMMA, if the feeding rate was smaller than 0.01 mm/tooth, the burr height decreased sharply with the increase of feed rate. This was in line with the conclusions of Reichenbach’s work [ 3 , 6 ] that the burr accumulates when the feed per tooth is greater than the thickness of the burr root.…”

Section: Resultssupporting

confidence: 91%

“…Polymers are widely used in industries such as the aerospace industry, optical engineering, and biological engineering industry due to the excellent properties such as low-density, corrosion resistance, low coefficient of friction, and the possibility of mass production [ 1 , 2 , 3 , 4 , 5 , 6 ]. Among the various types of polymers, thermoplastics are difficult to cut due to their characteristic properties such as low modulus of elasticity, low thermal conductivity, high coefficient of thermal expansion, and internal stress [ 7 , 8 , 9 ].…”

Section: Introductionmentioning

confidence: 99%

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Machinability of the Thermoplastic Polymers: PEEK, PI, and PMMA

Yan

Mao

et al. 2020

Polymers

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The thermoplastic polymer such as poly(methyl methacrylate) (PMMA), polyetheretherketone (PEEK), and polyimide (PI) is a kind of polymer material with properties of good mechanical strength. It has been widely used in the fields of aerospace, optical engineering, and microfluidics, etc. Thermoplastic polymers are considered to be one of the most promising engineering plastics in the future. Therefore, it is necessary to further study its mechanical properties and machinability, especially in ultra-precision machining. Furthermore, mechanical property and machinability were studied in this work. Through the dynamic mechanical analysis experiment, the elastic modulus and temperature effect of PMMA, PEEK, and PI are analyzed. In addition, the high-speed micromilling experiment is conducted to show that the surface roughness, burrs, and cutting chip characteristics in the high-speed micromilling process. In general, the surface quality of the brittle removal is generally better than that of the viscoelasticity state. The results show that PMMA, PEEK, and PI have good mechanical properties and machinability. Base on the results, the material will be in a viscoelastic state as the temperature increases. The surface quality of the brittle removal is generally better than the viscoelastic state.

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Section: Resultssupporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Machinability of the Thermoplastic Polymers: PEEK, PI, and PMMA

Yan

Mao

et al. 2020

Polymers

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“…In this context, it was shown that the minimum feature size is the same as the tool diameter as demonstrated with polystyrene (PS), polymethylmethacrylate (PMMA), and cyclic olefin copolymer (COC) by using 127 µm diameter end-mill [18]. Moreover, micromilling of PMMA by using end-mills with diameter as low as 20 µm have also been demonstrated [19]. On the other hand, the process can also be utilized to fabricate moulds for embossing [20] or PDMS moulding.…”

Section: Micromillingmentioning

confidence: 92%

“…Therefore, the part program should be manually revised to change the feed rate command from F60 to F10. Any technique mentioned in reference [19] can be used to mount the workpart on the worktable and to locate the origin of the work coordinate system on Proxxon MF70/CNC-Ready. The part program to machine the sample shown in Figure A4 along with a video of the micromilling process are given in Supplementary Materials.…”

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confidence: 99%

Low-Cost Microfabrication Tool Box

et al. 2020

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Microsystems are key enabling technologies, with applications found in almost every industrial field, including in vitro diagnostic, energy harvesting, automotive, telecommunication, drug screening, etc. Microsystems, such as microsensors and actuators, are typically made up of components below 1000 microns in size that can be manufactured at low unit cost through mass-production. Yet, their development for commercial or educational purposes has typically been limited to specialized laboratories in upper-income countries due to the initial investment costs associated with the microfabrication equipment and processes. However, recent technological advances have enabled the development of low-cost microfabrication tools. In this paper, we describe a range of low-cost approaches and equipment (below £1000), developed or adapted and implemented in our laboratories. We describe processes including photolithography, micromilling, 3D printing, xurography and screen-printing used for the microfabrication of structural and functional materials. The processes that can be used to shape a range of materials with sub-millimetre feature sizes are demonstrated here in the context of lab-on-chips, but they can be adapted for other applications. We anticipate that this paper, which will enable researchers to build a low-cost microfabrication toolbox in a wide range of settings, will spark a new interest in microsystems.

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“…Nevertheless, a lot of efforts were made by researchers to attenuate, or even eliminate, the shortages of micromilling. For example, to eliminate the burrs, Reichenbach et al adopted single‐edge ultrasmall micro end mills to manufacture burr‐free microchannels.…”

Section: Development Of Microfluidic Devicesmentioning

confidence: 99%

Multiphase Microfluidics: Fundamentals, Fabrication, and Functions

Geng

Ling

Huang

et al. 2020

Small

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microfluidic system with multiphase flow to intensify heterogeneous reactions, pre pare multiphase emulsions, and fabricate anisotropic functional materials.In a word, with its great advances in last several decades, multiphase flows in microfluidic system have shown numerous advantages, like fastening heat and mass transfer, reducing energy con sumption, improving productivity and purity, etc. Fortunately, because of the recent development and commercialization of micromachining technologies, microflu idic chips gradually moved from laboratory stage to practical application stage. There are also several comprehensive and accu rate Reviews that summarize the research on structural design, [9] system regulation, [10] and applications [11] of microfluidic technology. However, fewer articles focused on the latest technologies and achievements in the field of the multiphase flow control and its applications. In this Review, we aim to give a preliminary guidance for researchers with dif ferent backgrounds on the formation mechanisms, fabrication methods, and potential applications of multiphase microfluidics within different systems. We firstly presented the evolution of microfluidic device manufacture, followed by the mechanism and regulation methods of multiphase flow in microfluidic devices. Then the application of both single and double multi phase emulsions in industrial process optimization and new material preparation were described in details. By comparing the mechanism of manufacturing single droplets, microbub bles, liquid-liquid-liquid emulsions, and gas-liquid-liquid emulsions from various perspectives, researchers could obtain their first glance in the overall field of multiphase microfluidics and choose the system of manufacturing particles or materials with specific function that is most suitable for their application. At the end, we also introduced some lastly emerging tech nologies, such as microelectromechanical systems (MEMS) and machine deep learning, combined with microfluidic tech nology, illustrating the huge potential for diverse applications of the latter. Development of Microfluidic DevicesThe recent progress in micromachining has broadened the selec tion of manufacturing technologies and materials for researchers and engineers to design complex and delicate microstructure that generates and manipulates multiphase flow. Generally, the most common fabrication methods of microfluidic devices can be Multiphase microfluidics enables an alternative approach with many possibilities in studying, analyzing, and manufacturing functional materials due to its numerous benefits over macroscale methods, such as its ultimate controllability, stability, heat and mass transfer capacity, etc. In addition to its immense potential in biomedical applications, multiphase microfluidics also offers new opportunities in various industrial practices including extraction, catalysis loading, and fabrication of ultralight materials. Herein, aiming to give preliminary guidance for researchers from different backgrounds, ...

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Micromachining of PMMA—manufacturing of burr-free structures with single-edge ultra-small micro end mills

Cited by 31 publications

References 26 publications

Machinability of the Thermoplastic Polymers: PEEK, PI, and PMMA

Machinability of the Thermoplastic Polymers: PEEK, PI, and PMMA

Low-Cost Microfabrication Tool Box

Multiphase Microfluidics: Fundamentals, Fabrication, and Functions

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