Multi-Objective Optimization of Machining Parameters during Dry Turning of 11SMn30 Free Cutting Steel Using Grey Relational Analysis

Varghese, Leeba; Aravind, S.; Shunmugesh, K.

doi:10.1016/j.matpr.2017.02.122

Cited by 7 publications

(6 citation statements)

References 12 publications

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“…The machining experiments were performed through technically adapted parameters such as; cutting speed, feed, depth of cut and EMQL flow rate (Debnath et al, 2016;Mia et al, 2018;Varghese et al, 2017). The higher and lower ranges of the parameters were selected based on trial runs and the cutting tool catalogues keeping in view the stiffness and compliance of the machine.…”

Section: Cutting Conditions and Emql Systemmentioning

confidence: 99%

Multi-response optimisation of machining aluminium-6061 under eco-friendly electrostatic minimum quantity lubrication environment

Jamil

Khan

et al. 2019

IJMMM

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The emerging grave consequences of conventional coolants on health, ecology and product quality, have pushed the scientific research to explore eco-friendly lubrication technique. Electrostatic minimum quantity lubrication (EMQL) has been underscored as a burgeoning technology to cutdown bete noire impacts in machining. This research confers the adoption of a negatively charged cold mist of air-castor oil employed in turning of aluminium-6061T6 material by varying the cutting conditions, as per experimental designed through response surface methodology (RSM). For comprehensive sagacity, a range of cutting speed, feed, depth of cut and EMQL-flow rate were considered. Material removal rate, tool life, surface roughness and power consumption of machine tool were adopted as performance measures. To satisfy multi-criterion simultaneously, RSM-based grey relational analysis (GRA) was employed for multi-objective optimisation. Highest proportion of grey relational grade (GRG) as a single desideratum response function, provided a trade-off between performance measures with 15.56% improvement in GRG.

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Section: Cutting Conditions and Emql Systemmentioning

confidence: 99%

Multi-response optimisation of machining aluminium-6061 under eco-friendly electrostatic minimum quantity lubrication environment

Jamil

Khan

et al. 2019

IJMMM

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“…They found that BUL was composed of MnS adhesion coming from the workpiece. Also, Varghese et al [17] performed a relational analysis to study the influence of the machining parameters on the output process conditions in dry turning of 11SMn30 FCS. They obtained the related surface responses for the surface roughness and defined optimum cutting conditions.…”

Section: Introductionmentioning

confidence: 99%

Dry machinability analyses between free cutting, resulfurized, and carbon steels

Krähmer

Urbicain²,

Egea

2020

Materials and Manufacturing Processes

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Free cutting steels, also referred to as free machining steels, include free cutting additives to improve tool life and machinability. Despite their wide applications in industry, scarce information is available to ensure reliable, safe, and productive cutting operations. This work presents a comparative study of the machinability of different free cutting steels to realize their real behavior and potential as alternatives to conventional steels. Three free cutting steels (SAE 12L14, 11L17, and 11L41), a resulfurized steel (SAE 1144), and a low-carbon steel (SAE 1010) were experimentally investigated employing turning tests. Key process parameters such as wear evolution, surface roughness, and material adhesion were analyzed. The results showed that low cutting speeds tend to improve tool life in free cutting steels, while this advantage disappears at high cutting speeds. Energy-dispersive X-ray spectroscopy analyses showed that chemical elements, such as Mn, S, and, especially Pb, play a significant role in self-lubrication at the cutting tool tip, thus reducing tool wear at low and medium cutting speeds. Besides, thermal simulations were done to verify the correspondence between material properties, machinability, and thermal field in the tool/chip interface.

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“…Additionally, examined that both the forces and wear rate were significantly higher during machining of steel AISI 1215. Furthermore, Leeba Varghese et al [26] studied the influence of machining parameters on material removal rate and surface roughness during the dry turning of 11SMn30 free-cutting steel. Finally, Xu and coworkers investigated the cutting force and wear mechanism during high-speed turning of AISI 12L14 with Chemical Vapor Deposition (CVD) coated carbide tool GC4205 [27].…”

Section: Introductionmentioning

confidence: 99%

Wear and MnS Layer Adhesion in Uncoated Cutting Tools When Dry and Wet Turning Free-Cutting Steels

Krähmer

Hameed

Egea

et al. 2019

Metals

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Free-cutting steels are developed to produce large quantities of parts with low mechanical behavior, mainly for automotive sector. These alloys contain phosphorous, lead, sulfur, and manganese that help to improve the machinability and surface roughness. However, due to the toxicity of lead, steel mills in recent years have been focusing on non-toxic steels to produce minimum environmental pollution and better machinability. The present work investigates the tool wear during dry and wet turning of free-cutting steels (SAE 1212, SAE 12L14, and SAE 1215) by using uncoated hard metal inserts at three cutting speeds. Additionally, a EDS analysis was performed to determine the presence of Mn and S elements at the rake face of the cutting tool that can induce a higher adhesion of manganese sulfide (MnS). The results show that the SAE 12L14 steel has the best performance in terms of tool life at different cutting speeds. This difference is maximum at the lowest cutting speed, which gradually decreases with the increase of the cutting speed. The wear behavior is evaluated in the three steel alloys at each cutting speed and, consequently, the tool wear exhibits a slightly better performance in the dry machining condition for higher cutting speeds (180 and 240 m/min), independent of the steel alloy. Finally, EDS analysis confirms the presence of Mn and S elements at the rake face of the inserts machined in dry condition. Hence, MnS is expected to interpose between the machined surface and cutting tool surface to behave similar to tribofilm by reducing the wear on the cutting edge.

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Multi-Objective Optimization of Machining Parameters during Dry Turning of 11SMn30 Free Cutting Steel Using Grey Relational Analysis

Cited by 7 publications

References 12 publications

Multi-response optimisation of machining aluminium-6061 under eco-friendly electrostatic minimum quantity lubrication environment

Multi-response optimisation of machining aluminium-6061 under eco-friendly electrostatic minimum quantity lubrication environment

Dry machinability analyses between free cutting, resulfurized, and carbon steels

Wear and MnS Layer Adhesion in Uncoated Cutting Tools When Dry and Wet Turning Free-Cutting Steels

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