Minimum Quantity Lubrication through the micro-hole textured PCD and PCBN inserts in the machining of the Ti–6Al–4V alloy

Rao, Charitha M.; Sachin, B.; Rao, Subba; Herbert, Mervin A.

doi:10.1016/j.triboint.2020.106619

Cited by 30 publications

(2 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Since it contacts with the workpiece and in uences the machining quality and e ciency of the workpiece directly, the cutting insert plays a vital role in the machining tool [2][3]. In recent years, various cutting insert materials, including cemented carbide [4], cermet [5], ceramic [6], polycrystalline diamond (PCD) [7], and cubic-boron-nitride (CBN) [8], have been developed and successfully implemented concerning different machining conditions. Among them, ceramic cutting inserts have been widely applied for the nishing of cast iron and hardened materials due to their mechanical properties and chemical stability at high temperatures [9][10].…”

Section: Introductionmentioning

confidence: 99%

Novel batch polishing method of ceramic cutting inserts for reducing tool wear

Gao,

Wang,

Loh

et al. 2023

Preprint

View full text Add to dashboard Cite

To reduce tool wear of inserts in cutting, this study presents an emerging magnetic field-assisted batch polishing (MABP) method for simultaneously polishing multiple ceramics cutting inserts. The wear characteristics are clarified by cutting S136H steel. The surface roughness in regard to mean height (\(Sa\)) at the flank face, edge, and nose has achieved below 2.5 nm, 6.25 nm, and 45.8 nm, respectively after 15 minutes of polishing, and the tool life was extended by 175%. The experimental results indicate that MABP is an effective method for mass polishing the cutting inserts, and the polished surfaces can notably reduce tool wear.

show abstract

Section: Introductionmentioning

confidence: 99%

Novel batch polishing method of ceramic cutting inserts for reducing tool wear

Gao,

Wang,

Loh

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…Some scholars have proposed methods of lubrication and cooling in turning or drilling Ti-6Al-4V alloy, such as minimum quantity lubrication [3,4], cryogenic technology [5,6], cooling technic [7,8] and coating method [9], to decrease the temperature of the contact area during processing. For workpiece materials with higher hardness, for example, the titanium alloys, in addition to reducing the cutting temperature in the contact area, tool materials with relatively higher hardness can also be used, such as PCD, PCBN and other hard tool materials [10].…”

Section: Introductionmentioning

confidence: 99%

Effect of volcano-like textured tools on machining of Ti-6Al-4V alloy: a numerical and experimental analysis

Liu¹,

Fu²,

Zhou³

et al. 2022

Surf. Topogr.: Metrol. Prop.

View full text Add to dashboard Cite

Higher temperature and lower thermal conductivity between the tool-chip contact face easily result in adhesion and wear on the tool surface which negatively affects the tool life and the machining quality of the workpiece in the machining Ti-6Al-4V alloy process. To address these problems, the investigation, combining the simulation and experiment, introduced the volcano-like textures of different diameters with excellent anti-adhesion performance on the tool rake face. DEFORM-3D software with updated Lagrangian formulation was used for numerical simulation, and the thermo-mechanical analysis was performed using the Johnson-Cook material model to predict the cutting forces, cutting temperature and tool wear. In cutting experiments, volcano-like textures (VT) with different diameters were fabricated by fiber laser on the rake face of cemented carbide tools close to the main cutting edge. Experiments in cutting Ti-6Al-4V alloy were carried out with the textured tools and non-textured tool under rough machining, semi-finishing and finishing conditions. Then, cutting force, cutting temperature and tool wear were investigated. The results showed that textured tools generally perform better than non-textured tools. The cutting force of VT1 was reduced by 31.2% and 50%, respectively, compared with the non-textured tool under Semi-finishing and finishing conditions. With the refinement of machining, the cutting performance of the textured tools is improved, and the service life of the tool is extended. Therefore, the investigation can provide a basis for the surface texture design and optimization of the carbide tool.

show abstract

Improving the Performance of the Machining Process by Using Ultra‐Advanced Tools in a Clean Turning of Inconel 686 Using the Minimum Quantity Lubrication Method

Hosseini Tazehkandi,

Shabgard,

Tutunchi

2024

Lubrication Science

View full text Add to dashboard Cite

The high tensile strength and high resistance of nickel‐based superalloy 686 against high temperatures and corrosion rates have made it a widely used in important applications such as the aerospace industry, high pollution‐ and corrosion‐resistance equipment manufacturing and petrochemical industry. Therefore, the machining of this advanced alloy with its unique properties is extremely important and can be challenging. Significant increase in input parameters levels, reduction of machining costs, improvement of surface and subsurface properties and clean production are among the issues that should be considered in dealing with Inconel 686 turning operations. Simultaneous application of advanced tools such as polycrystalline diamond (PCD) and polycrystalline cubic boron nitride (PCBN) and optimised minimum quantity lubrication (MQL) method and evaluating the results obtained with a wide range of output parameters related to machining process performance and tribological properties can be proposed as an innovation and a solution to this problem in this article. This study analyses several output parameters with different speeds and feeds to evaluate the effect of cutting insert type on machining process performance and tribological properties. The output parameters include tool wear, residual stress, cutting zone temperature, surface smoothness, machining forces and workpiece surface defects. The results indicated that using the optimised MQL method reduces the size of lubricant droplets and increases the surface covered by cooling. With these changes, the performance of the machining process and the parameters related to the surface integrity increase significantly. Among the parameters associated with the performance of the machining process, the PCD tool reduces the cutting zone temperature by 23%, the tool wear by 19% and the machining forces by 18% compared to the PCBN tool. In the parameters related to surface integrity, this method reduces the residual stress by 19% and the surface roughness by 9% compared to the PCBN tool. From the production index perspective, the PCD tool can significantly increase the cutting speed and feed rate, reducing production time and costs.

show abstract

Minimum Quantity Lubrication through the micro-hole textured PCD and PCBN inserts in the machining of the Ti–6Al–4V alloy

Cited by 30 publications

References 43 publications

Novel batch polishing method of ceramic cutting inserts for reducing tool wear

Novel batch polishing method of ceramic cutting inserts for reducing tool wear

Effect of volcano-like textured tools on machining of Ti-6Al-4V alloy: a numerical and experimental analysis

Improving the Performance of the Machining Process by Using Ultra‐Advanced Tools in a Clean Turning of Inconel 686 Using the Minimum Quantity Lubrication Method

Contact Info

Product

Resources

About