Recent advances in characterization, modeling and control of burr formation in micro-milling

Kumar, P. Sreenivasa; Kumar, Mohan; Bajpai, Vivek K.; Singh, Nirmal

doi:10.1016/j.mfglet.2017.04.002

Cited by 34 publications

(16 citation statements)

References 26 publications

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“…Graphs E, F and G from Figure 3(a) are in accordance with results from Kumar et al 16 , Thepsonthi and Özel 17 and Thepsonthi and Özel 18 ; which assert that smaller feed rates generate better surface finishes on the piece for micro-milling. The same resuls are also obtained by Ali et al 19 , Karkalos, Galanis, Markopoulos 20 , and Shokrani, Dhokia, Newman 21 , since the since the roughness are geometrically dependent of feed rate.…”

Section: Figure 3 Interactions Graphs Between the Factors Over Surfasupporting

confidence: 87%

Study of Surface Roughness and Burr Formation After Milling of Carbon Fiber/Titanium Stacks

2019

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This work aims to study the influence of cutting parameters (cutting speed, feed rate, cutting depth and tool cutting edge angle) regarding surface roughness and burr formation during the milling of a mixed structure comprised of titanium and carbon fiber (stack). The parameters were varied from maximum to minimum, just as the tool cutting edge angle of the insert, through a full factorial design with 32 trials. The analyses were performed by measuring the surface roughness and burr size along with metallographic analyses through optic microscopy and scanning electron microscopy. The results showed that the surface roughness was higher for carbon fiber and burr size was higher for titanium. There were a number of tests with delamination of the carbon fiber, and the best cutting parameters to minimize surface roughness and burr formation were tool cutting edge angle of 45º, a feed rate of 0.028 mm/tooth, cutting depth equal to 0.26 mm and cutting speed equal to 150 m/min.

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Section: Figure 3 Interactions Graphs Between the Factors Over Surfasupporting

confidence: 87%

Study of Surface Roughness and Burr Formation After Milling of Carbon Fiber/Titanium Stacks

2019

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“…The burrs generated in our case were mainly side burrs (down milling side) according to X. Wu and S. A. Niknam [6,7]. The most commonly used characterization method of burrs were measuring the morphological dimensions including the height and the width [4][5][6][7][8]. Since the burr formation was subjected to the uncut chip thickness and the thick axial depth of cut [6,9], the increased depth of cut was considered the main sources of burr formation in this study.…”

Section: Problem Definitionmentioning

confidence: 99%

Evaluation of an improved Micro Milling Strategy for the Generation of Tool Steel Micro features with Optical Functionality

Li¹,

Davoudinejad²,

Zhang³

et al. 2018

WCMNM 2018 World Congress on Micro and Nano Manufacturing

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“…Additionally, tool wear during the milling process can influence mould feature precision. Surface cutting tracks and machining burrs can influence the mould finish, resulting in significant labour efforts to remove burrs [1]. Meanwhile, electroforming is one of most used processes for making nickel mould tools using ultraviolet (UV) lithography and/or dry etch, metallization, electroforming process.…”

Section: Introductionmentioning

confidence: 99%

3D Printing of Metallic Microstructured Mould Using Selective Laser Melting for Injection Moulding of Plastic Microfluidic Devices

et al. 2019

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A new method, a 3D printing technique, in particular, selective laser melting (SLM), has been used to fabricate moulds for the injection moulding of thermoplastic microfluidic chips that are suitable for prototyping and early stage scale-up. The micro metallic patterns are printed on to a pre-finished substrate to form a microstructured mould. The dimensional accuracy, surface morphology, bonding strength between the printed patterns and substrate, as well as the microstructure of micro features were all characterized. A microfluidic mould was successfully printed and used directly for injection moulding of cyclic olefin copolymer (COC) microfluidic chips, which were used subsequently to successfully monitor nitrite concentrations in environmental water. The characterization indicated that this new process can be used for fast fabrication of mould tools for injection moulding/hot embossing microfluidic devices. It is faster, more flexible and less expensive than conventional micro-machining processes, although the accuracy and finish are still needed to improve though process optimization and hybrid SLM and machining processes.

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Recent advances in characterization, modeling and control of burr formation in micro-milling

Cited by 34 publications

References 26 publications

Study of Surface Roughness and Burr Formation After Milling of Carbon Fiber/Titanium Stacks

Study of Surface Roughness and Burr Formation After Milling of Carbon Fiber/Titanium Stacks

Evaluation of an improved Micro Milling Strategy for the Generation of Tool Steel Micro features with Optical Functionality

3D Printing of Metallic Microstructured Mould Using Selective Laser Melting for Injection Moulding of Plastic Microfluidic Devices

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