Influence of helix angle on tool performances of TiAlN- and DLC-coated carbide end mills for dry side milling of stainless steel

Baowan, Paramet; Saikaew, Charnnarong; Wisitsoraat, Anurat

doi:10.1007/s00170-016-9601-5

Cited by 21 publications

(7 citation statements)

References 34 publications

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“…Both the high residual compressive stress from the complicated cross-linked sp 3 bonds and thermal stress from the mismatches of the elastic modulus and expansion coefficient between the DLC film and the substrate give rise to weak adhesion to the substrate and poor toughness. Especially under harsh cutting conditions with high cyclic fatigue, DLC films with a high compressive stress tend to fracture or even flake off in the initial phase, which significantly restricts their cutting application [31][32][33]. A great many studies aimed to increase the toughness, adhesion strength and tribological characteristics of DLCcoated cutting tools using various methods.…”

Section: Methods To Improve Mechanical Properties For Dlc Filmsmentioning

confidence: 99%

Modification Methods of Diamond like Carbon Coating and the Performance in Machining Applications: A Review

et al. 2022

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The ideal cutting-tool coating material is characterized by unique chemical and physical properties to achieve excellent cutting performance, a good thermal barrier effect, and a high-quality machined surface. Diamond-like carbon (DLC) coating, as a kind of cutting-tool coating material, has been used in cutting various materials due to its low coefficients of friction and thermal expansion, high hardness, and good chemical inert and thermal conductivity. This article mainly focuses on the modification methods for the DLC coating and their application in machining different materials. Firstly, the methods employed to improve the mechanical properties of DLC coating are reviewed and analyzed, including the multilayer structure design, transition layer, and doping other elements. Secondly, the machining performances of DLC-coated tools in the application of different materials are summarized. This review provides knowledge of modification mechanisms regarding DLC coating and its effects on mechanical properties. For machining different materials, it provides a reference to make a suitable selection and design of DLC coating to obtain better machining performance.

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Section: Methods To Improve Mechanical Properties For Dlc Filmsmentioning

confidence: 99%

Modification Methods of Diamond like Carbon Coating and the Performance in Machining Applications: A Review

et al. 2022

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“…However, compared with the untreated tool, the chipping area of the cutting edge of the tool treated by 1.0T and 1.5T eld is reduced. In general, the untreated tool presents severe tool wear and the signi cant distortion of cutting edge shapes weaken the strength of the cutting edge, resulting in deteriorated cutting performance and inferior service life [17]. In contrast, the treated tools exhibit relatively less wear and maintain a better cutting edge integrity.…”

Section: Tool Wearmentioning

confidence: 99%

Pulsed magnetic field treatment of TiAlSiN-coated milling tools for improved cutting performances

Zhang

Chen

et al. 2022

Int J Adv Manuf Technol

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In this study a pulsed magnetic treatment was attempted to improve the cutting performance of the TiAlSiN coated WC-12wt%Co cemented carbide end mills and the effects of the strength of the pulsed magnetic eld on the cutting forces, the cutting vibrations, the tool wear, the machined surface roughness and mechanical properties were investigated. It is found that the cutting performances of the coated tools are successfully improved with a relatively lower cutting force and less wear area. The average resultant cutting force Fxy ave decrease by 14.53% in the last machining process when the optimum processing parameters of 0.5T magnetic eld is used, accompanying a maximum decrease of 46.8% in the cutting vibration. The maximum reductions of 57.65% and 25.4% in the ank wear and the average surface roughness of the workpiece are obtained respectively after the treatment. Both the hardness and toughness of the cemented carbides are slightly improved with the imposition of the eld. The improvements in the cutting performance of the tool are attributed to the enhanced adhesion strength between the coating and matrix, which is caused by the increased compressive residual stress induced by the PMT.

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“…As a result, the volume of material machined is higher at each contact point, which thereby increases the uncut chip volume and, thus, the resultant load. As the value of the helix angle increases, the number of axial contact points increases [20,21]. This reduces the volume of the material to be cut by each engaging cutting edge, reducing the force value.…”

Section: Milling Force Analysismentioning

confidence: 99%

Influence of End Mill Geometry on Milling Force and Surface Integrity While Machining Low Rigidity Parts

Joshi

Bolar

2020

J. Inst. Eng. India Ser. C

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High precision and superior surface finish are of prime importance in thin-wall components used in the aerospace and automobile industries. In this paper, end milling experiments on aluminum alloy 2024-T351 were carried out to study the influence of end mill geometry on milling force and surface integrity of the machined parts. Machining using a 16-mm-diameter tool having a helix angle of 35°produced high force value and also generated chatter marks on the machined work surface. Furthermore, an inspection of the cutting tool indicated built-up-edge formation while machining with a 35°helix tool. Besides, surface damage in the form of surface tear was observed. Evaluation of microhardness revealed an increased value near to the machined surface in the case of two fluted 35°h elix tool due to strain hardening. The results showed that lower milling force and surface roughness were obtained while machining used a four fluted end mill having a diameter of 8 mm and a helix angle of 55°.

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Influence of helix angle on tool performances of TiAlN- and DLC-coated carbide end mills for dry side milling of stainless steel

Cited by 21 publications

References 34 publications

Modification Methods of Diamond like Carbon Coating and the Performance in Machining Applications: A Review

Modification Methods of Diamond like Carbon Coating and the Performance in Machining Applications: A Review

Pulsed magnetic field treatment of TiAlSiN-coated milling tools for improved cutting performances

Influence of End Mill Geometry on Milling Force and Surface Integrity While Machining Low Rigidity Parts

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