An investigation on the cutting performance of nano-crystalline diamond coatings on a micro-end mill

Wu, Tao; Cheng, Kai

doi:10.1177/0954405412447484

Cited by 15 publications

(14 citation statements)

References 7 publications

(9 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…16 The aluminium alloy is most commonly used in the fundamental research of ultraprecision and diamond turning especially in evaluation and validation of the material constitutive model, micro cutting characteristics, the process optimization, and so on. [17][18][19] In this article, an innovative cutting force modelling approach is proposed for ultraprecision and micro cutting based on the specific cutting force at the unit length or area and the cutting force analysis against a short dynamic interval of cutting time. The specific cutting force at the unit length or area is called the amplitude aspect of the model formulation, while the force analysis against a short cutting time interval is called the spatial aspect of the formulation.…”

Section: Introductionmentioning

confidence: 99%

An innovative approach to cutting force modelling in diamond turning and its correlation analysis with tool wear

Sawangsri

Cheng

2014

Proceedings of the Institution of Mechanical Engineers, Part B:

Self Cite

View full text Add to dashboard Cite

In this article, a novel cutting force modelling approach is proposed by employing the specific cutting force and corresponding quantitative analysis on the dynamic cutting process in diamond turning so as to accurately represent the dynamic cutting behaviour including both amplitude and spatial aspects simultaneously. The specific cutting forces at the unit cutting length and area as the so-called amplitude aspect can provide insight into the micro cutting phenomena particularly in relation to the chip formation and size effects. The cutting forces are analysed against the dynamically varied cutting time interval, as the so-called spatial aspect using wavelet transform technique and standard deviation analysis can render their dynamic components to particularly represent dynamic effects of the cutting process and their correlation with tool wear. The cutting trials on titanium, silicon, and aluminium are carried out at a diamond turning test rig and supported with finite element analysis-based simulations, to further investigate the cutting force modelling and its correlation with the dynamic cutting process with a focus on the pressure distribution on the tool cutting edge, chip formation, and corresponding tool wear.

show abstract

Section: Introductionmentioning

confidence: 99%

An innovative approach to cutting force modelling in diamond turning and its correlation analysis with tool wear

Sawangsri

Cheng

2014

Proceedings of the Institution of Mechanical Engineers, Part B:

Self Cite

View full text Add to dashboard Cite

show abstract

“…Tool coatings such as diamondlike carbon and nanocrystalline carbon have been shown to prolong the onset of BUEs in microscale tools [8]. However, the lifetime of these coatings is highly unreliable, thereby limiting the potential of this approach [9]. The use of cutting fluids during micromilling reduces the formation of BUEs in metals [5,10], However, cutting fluids are not suited for soft materials such as thermoplastic polymers that are notorious for forming BUEs during micromilling [11].…”

Section: Introductionmentioning

confidence: 99%

An In-Process Intervention to Mitigate the Effect of Built-Up Edges in Micromilling

Altman

Nowak

Samuel

2017

Journal of Micro and Nano-Manufacturing

View full text Add to dashboard Cite

This paper is focused on developing an in-process intervention technique that mitigates the effect of built-up edges (BUEs) during micromilling of aluminum. The technique relies on the intermittent removal of the BUEs formed during the machining process. This is achieved using a three-stage intervention that consists first of the mechanical removal of mesoscale BUEs, followed by an abrasive slurry treatment to remove the microscale BUEs. Finally, the tool is cleaned using a nonwoven fibrous mat to remove the slurry debris. An on-machine implementation of this intervention technique is demonstrated, followed by a study of its influence on key micromachining outcomes such as tool wear, cutting forces, part geometry, and burr formation. In general, all relevant machining measures are found to improve significantly with the intervention. The key attributes of this intervention that makes it viable for micromachining processes include the following: (i) an experimental setup that can be implemented within the working volume of the microscale machine tool; (ii) no removal of the tool from the spindle, which ensures that the intervention does not change critical process parameters such as tool runout and offset values; and (iii) implementation in the form of canned G-code subroutines dispersed within the regular micromachining operation.

show abstract

“…The chemical vapor deposition (CVD) diamond-coated tool has the most extreme properties such as excellent tribological properties and superior wear resistance, which has been applied for machining Al 2 O 3 ceramics material, carbon fiber-reinforced plastics (CFRP), Al alloy and monocrystalline silicon. [5][6][7][8][9] The CVD diamond-coated tool also has distinct advantage over other coated tool during machining graphite. It is found that the tool life of the diamond-coated driller was six times of the TiAlN-coated one when microdrilling of the graphite.…”

Section: Introductionmentioning

confidence: 99%

Performance of AlTiN- and diamond-coated carbide tools in dry high-speed milling of electro discharge machining graphite

Chen

Wang³

et al. 2016

Proceedings of the Institution of Mechanical Engineers, Part B:

View full text Add to dashboard Cite

Electrodes made of graphite material are widely used for electro discharge machining. The performance of physical vapor deposition AlTiN and chemical vapor deposition diamond-coated carbide end-milling tools in dry high-speed milling of electro discharge machining graphite was investigated, also adopting an uncoated one as a comparison. The quality of asdeposited diamond film was evaluated by Raman spectroscopy. The adhesion between the coating and the substrate was assessed by indentation test. The tool life and wear mechanism of the milling tools, the cutting forces during tests, as well as the roughness of processed surfaces were systematically studied. It is found that the diamond coating has lower adhesion than the AlTiN coating under the same load. Coating delamination and chipping, irregularly zigzag side flank wear, concave structure on the cutting edge are primary wear patterns for the diamond-coated tool. While different primary wear patterns, including uniform polishing abrasive flank wear and crater rake wear, are observed on the AlTiNcoated tool. Besides, the total cutting force of the diamond-coated tool is larger than that of the AlTiN-coated tool when the diamond-coated tool side flank wear value reaches 0.06 mm, attributed to the different wear patterns. Another notable result is clarified that the chipping of the diamond coating can cause significant increment in the feed force, radial force and worked surface roughness.

show abstract

An investigation on the cutting performance of nano-crystalline diamond coatings on a micro-end mill

Cited by 15 publications

References 7 publications

An innovative approach to cutting force modelling in diamond turning and its correlation analysis with tool wear

An innovative approach to cutting force modelling in diamond turning and its correlation analysis with tool wear

An In-Process Intervention to Mitigate the Effect of Built-Up Edges in Micromilling

Performance of AlTiN- and diamond-coated carbide tools in dry high-speed milling of electro discharge machining graphite

Contact Info

Product

Resources

About