A study of mechanical and tribological properties as well as wear performance of a multifunctional bilayer AlTiN PVD coating during the ultra-high-speed turning of 304 austenitic stainless steel

He, Qianxi; DePaiva, Jose M.; Kohlscheen, Joern; Veldhuis, Stephen C.

doi:10.1016/j.surfcoat.2021.127577

Cited by 22 publications

(4 citation statements)

References 29 publications

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“…The plastic deformation increases with the increase in cutting speed for all feeds, and hence the cutting forces are decreasing at higher cutting speeds. 27 The feed force also decreases at higher cutting speeds. It was found that the cutting force magnitude was less for AlTiN inserts compared to TiCN inserts for all ranges of cutting speed.…”

Section: Resultsmentioning

confidence: 97%

Performance analysis of twin-layer AlTiN and TiCN coated inserts during high speed turning of SS304 with synthetic coolant at 0°C

Patil,

Karande

2024

Tribology - Materials, Surfaces & Interfaces

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Industries are facing challenges to machine hard materials in economical ways and to improve the output machining characteristics. In pursuit of effective problem-solving, two distinct sets of AlTiN and TiCN coated inserts were meticulously prepared. Their respective performances were subsequently compared, using the output machining parameters as reference points. AlTiN inserts are fabricated by applying a twin layer consisting of Al50Ti40N (2 µm thickness) and Al60Ti50N (3 µm thickness) over the substrate. The insert obtained from this process has exceptional strength and remarkable toughness. Another substrate is coated with a 3 µm thick layer of TiCN, as TiCN coating offers excellent resistance against shock loads and impact stress. Previous research conducted by scholars has already established the efficacy of using synthetic coolant at 0°C for machining SS304. Hence, synthetic coolant was employed in combination with the aforementioned two types of inserts during their performance testing. A comprehensive analysis revealed that the performance of twin-layer AlTiN inserts surpassed that of TiCN inserts, showcasing superior tool life, reduced tool wear, and enhanced surface finish quality. The replacement of TiCN inserts with AlTiN inserts resulted in an impressive increase of around 70% in tool life and approximately 30% in surface finish quality.

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Section: Resultsmentioning

confidence: 97%

Performance analysis of twin-layer AlTiN and TiCN coated inserts during high speed turning of SS304 with synthetic coolant at 0°C

Patil,

Karande

2024

Tribology - Materials, Surfaces & Interfaces

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“…During the machining process of SS304, the oxidation, ion dissolution and frictional wear of the cutting tools take place due to high-temperature generation. The heat generated is primarily due to frictional resistance between the tool surface and workpiece, resulting in heat concentration, more tool wear and less tool life [3]. The inserts coated with the hard resistance and low frictional material either by means of physical vapour deposition (PVD) or chemical vapour deposition (CVD) provide ease in machining due to less co-efficient of friction of coated layer material [4].…”

Section: Introductionmentioning

confidence: 99%

Effectiveness of synthetic coolant at 0°C on machining of SS304 with PVD coated TiCN tool to evaluate and compare tool wear and surface finish with conventional machining method

Patil

Karande²

2023

Tribology - Materials, Surfaces & Interfaces

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The work-hardening and low thermal conductivity characteristics of SS304 had always been a challenge to machine it easily with better tool life and surface finish. The type of coolant, its temperature and surface coated inserts plays a pivotal role in machining the hard materials. A number of experiments were performed with a TiCN and tungsten carbide inserts in combination with soluble/synthetic coolant at ambient temperature and at 0 o C TiCN-coated cemented carbide insert with synthetic coolant at 0°C is recommended for machining as per the results obtained through this research work. It was found that TiCN-coated inserts used for machining SS304 with synthetic coolant at 0°C provide better tool life, less tool wear, improved surface finish and low heat generation. The tool life was enhanced approximately by 75%, 20% reduction in maximum temperature generation and 50% improvement in surface finish of workpiece.

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“…Several research groups have been used the following surface modification technologies: electroplating, physical vapour deposition (PVD), chemical vapour deposition (CVD) [17,18], plasma spraying [19], ion implantation etc. to increase the hardness and wear resistance properties [20,21].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of mechanical properties of TiB₂-TiO₂ ceramic composite coating on AISI 1020 mild steel by TIG cladding

Kumar

Das

2022

Eng. Res. Express

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The main objective of the present work was to enhance the mechanical properties of AISI 1020 steel by depositing the TiB2-TiO2 composite coating on it with the help of the tungsten inert gas (TIG) cladding process. The semi-solid mixture of 50 wt.% of TiB2 and 50 wt.% of TiO2 was preplaced on AISI 1020 steel and a TIG torch was used as heat source to melt the preplaced layer as well as substrate layer to produce the new coating layer. Characteristics of the cladded layer were examined using Vickers microhardness tester, energy dispersive spectroscopy (EDS), scanning electron microscope (SEM) and X-ray diffractometer (XRD). The TIG currents have shown a significant influence on the microstructure and mechanical properties of the coated layer. Metallography result also shows that the input current of the TIG cladding has considerable effect on the microstructure and quality of the coating. Microstructural changes in the clad layer were studied in detail. The Vickers micro-hardness value of the coated layer increases with decrease in input current and maximum microhardness was achieved about 568 HV0.05 which was about 3.5 times higher than that of the substrate (157 HV0.05). The dry sliding abrasive wear test was performed against EN31 hardened alloy steel as counter body by pin-on-disc tribometer with sliding distance of 1036 meters. The coating produced at lower TIG current (110 A) exhibits minimum average wear rate 1.46 × 10-6 g/Nm while coating processed at higher TIG current (155 A) exhibits higher average wear rate 2.18 × 10-6 g/Nm. It was also concluded that the wear rate of the TiB2-TiO2 coating decreases with decreasing processing current and minimum wear rate (1.46 × 10-6 g/Nm) obtained up to 2.5 times lower as compare to wear of AISI 1020 mild steel substrate (3.65 × 10-6 g/Nm) which makes the TiB2-TiO2 coating suitable for application as wear resistance components. The average coefficient of friction also decreases with increasing TIG current and found maximum (0.76) and minimum (0.58) for the coating deposited at 110 A and 155 A current, respectively.

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A study of mechanical and tribological properties as well as wear performance of a multifunctional bilayer AlTiN PVD coating during the ultra-high-speed turning of 304 austenitic stainless steel

Cited by 22 publications

References 29 publications

Performance analysis of twin-layer AlTiN and TiCN coated inserts during high speed turning of SS304 with synthetic coolant at 0°C

Performance analysis of twin-layer AlTiN and TiCN coated inserts during high speed turning of SS304 with synthetic coolant at 0°C

Effectiveness of synthetic coolant at 0°C on machining of SS304 with PVD coated TiCN tool to evaluate and compare tool wear and surface finish with conventional machining method

Evaluation of mechanical properties of TiB₂-TiO₂ ceramic composite coating on AISI 1020 mild steel by TIG cladding

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A study of mechanical and tribological properties as well as wear performance of a multifunctional bilayer AlTiN PVD coating during the ultra-high-speed turning of 304 austenitic stainless steel

Cited by 22 publications

References 29 publications

Performance analysis of twin-layer AlTiN and TiCN coated inserts during high speed turning of SS304 with synthetic coolant at 0°C

Performance analysis of twin-layer AlTiN and TiCN coated inserts during high speed turning of SS304 with synthetic coolant at 0°C

Effectiveness of synthetic coolant at 0°C on machining of SS304 with PVD coated TiCN tool to evaluate and compare tool wear and surface finish with conventional machining method

Evaluation of mechanical properties of TiB2-TiO2 ceramic composite coating on AISI 1020 mild steel by TIG cladding

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Evaluation of mechanical properties of TiB₂-TiO₂ ceramic composite coating on AISI 1020 mild steel by TIG cladding