Study on micro cutting fundamentals considering the cutting edge radius and the workpiece material in micro end milling

Cheng, Xiang; Cheng, Xiang; Ling, Siying; Zheng, Guangming; Liu, Huanbao; Wang, Fei

doi:10.1177/0954408920946024

Cited by 14 publications

(3 citation statements)

References 19 publications

(27 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…At the same time, excessive feed per tooth values are not suitable to be selected, otherwise it will make the cutting force increase, leading to larger deformation of thin walls. Therefore, the thin wall cutting parameters are determined as shown in Table 3 based on previous studies [ 16 , 17 , 18 , 19 , 20 , 21 ].…”

Section: Finite Element Simulationmentioning

confidence: 99%

On-Line Compensation for Micromilling of High-Aspect-Ratio Straight Thin Walls

Cheng

Ling

et al. 2021

Micromachines

Self Cite

View full text Add to dashboard Cite

In order to improve the machining quality and reduce the dimensional errors of micro high-aspect-ratio straight thin walls, the on-line cutting parameter compensation device has been introduced and corresponding micromilling processes have been investigated. Layered milling strategies for the micromilling of thin walls have been modeled and simulated for thin walls with different thicknesses based on the finite element method. The radial cutting parameters compensation method is adopted to compensate the thin wall deformation by raising the radial cutting parameters since the thin wall deformation make the actual radial cutting parameters smaller than nominal ones. The experimental results show that the dimensional errors of the thin wall have been significantly reduced after the radial cutting parameter compensation. The average relative dimensional error is reduced from 6.9% to 2.0%. Moreover, the fabricated thin walls keep good shape formation. The reduction of the thin wall dimensional error shows that the simulation results are reliable, which has important guiding significance for the improvement of thin wall machining quality, especially the improvement of dimensional accuracy. The experimental results show that the developed device and the machining strategy can effectively improve the micromilling quality of thin walls.

show abstract

Section: Finite Element Simulationmentioning

confidence: 99%

On-Line Compensation for Micromilling of High-Aspect-Ratio Straight Thin Walls

Cheng

Ling

et al. 2021

Micromachines

Self Cite

View full text Add to dashboard Cite

show abstract

“…Therefore, the feed per tooth should be carefully selected and greater than the minimum undeformed chip thickness. The cutting parameters are determined as shown in Table 2 based on previous studies [13][14][15][16][17][18]. The attributes of the tool and workpiece used in the experiment are shown in Table 3 and Table 4 respectively.…”

Section: Experiments Setupmentioning

confidence: 99%

Study on deformation and compensation for micromilled thin walls with high aspect ratios

Cheng

Ling

et al. 2021

Int J Adv Manuf Technol

Self Cite

View full text Add to dashboard Cite

In order to further improve the dimensional accuracy of micromilled thin walls with high aspect ratios, the machining process should be actively controlled. An active cutting force measurement and cutting parameter compensation device is developed to realize the real-time measurement of radial cutting forces and compensation of radial cutting parameters in thin wall cutting process. Firstly, based on the cantilever beam deformation theory, a mathematical model is established to calculate the deformation and cutting force of thin walls. By measuring the cutting force, the thin wall deformation in the cutting process could be estimated. Then, the obtained incremental thin wall deformation is to be compared with the compensation threshold, which is set at 0.5 μm. If the value of the incremental deformation is less than 0.5 μm, compensation will not be processed. Otherwise, the incremental deformation is used as the compensation value for iterative compensation, until the incremental deformation of the thin wall is less than 0.5 μm. At last, a contrast experiment is carried out. The experimental results show that the introduced device and method are feasible. Machining quality of the thin wall has been obviously improved in dimension precision after the cutting parameter compensations.

show abstract

“…According to Balazs et al [11], size e↵ects do not correlate linearly with tool size reduction. Even though there may be a linear relationship between t c and the tool cutting edge radius, the workpiece grain size is also highly relevant, as stated by Li et al [12]. For t in the same order of magnitude of grain size, chip formation might occur within a few or only a single grain of the material.…”

Section: Introductionmentioning

confidence: 99%

Investigation on micro milling of cemented carbide with ball nose and corner radius diamond coated end mills

Figueiredo,

Silva,

Silva

et al. 2023

Preprint

View full text Add to dashboard Cite

Micro milling of cemented carbides is a challenging task due to their high hardness, low toughness and high wear resistance. Ensuring good surface quality and dimensional accuracy is crucial for extending parts service life, which in turn enhances economical and environmental sustainability. This paper is mainly focused on evaluating surface formation mechanisms, scale effects, fracture behaviour and chip formation using distinct cemented carbide micro milling tools with multi layer diamond HF-CVD. In order to achieve higher precision and more efficient micro milling operations on WC-15Co and WC-10Co, a systematic experimental approach has been carried out. The influence of cutting parameters, achievable surface quality and defects occurrence were thoroughly examined. Experimental results evidence the influence of operational conditions on the chip formation of cemented carbides as well as an important impact of the utilized cutting tool. Micro pits, cracks, thin ploughing layer and fractured workpiece edges are amongst the observed surface damage mechanisms. A ductile cutting regime of the high-hardness composite material is confirmed, exhibited by the plastic deformation even when small depths of cut are considered.

show abstract

Study on micro cutting fundamentals considering the cutting edge radius and the workpiece material in micro end milling

Cited by 14 publications

References 19 publications

On-Line Compensation for Micromilling of High-Aspect-Ratio Straight Thin Walls

On-Line Compensation for Micromilling of High-Aspect-Ratio Straight Thin Walls

Study on deformation and compensation for micromilled thin walls with high aspect ratios

Investigation on micro milling of cemented carbide with ball nose and corner radius diamond coated end mills

Contact Info

Product

Resources

About