Experimental investigation of machining process parameters in conventional turning of Al-7075 on MRR using response surface methodology

Gangil, Brijesh; Kothiyal, Pradeep; Kumar, Sandeep

doi:10.1063/1.4946682

Cited by 1 publication

(2 citation statements)

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“…Cutting speed (V C ), feed rate (F r ), and depth of cut (D OC ) have been selected as process parameters whereas the mode of lubrication (MOL) as the categorical input parameter. The ranges of process variables have been finalized on the base of extensive literature [24] shown in Table 3, and thorough trial experiments. This has been also verified from the machining and Sandvik handbooks [33].…”

Section: Methodsmentioning

confidence: 99%

“…It has resulted that better surface finish was achieved by 2:1 mixing of nanoparticles. Gangil et al [24] revealed that spindle speed and D OC are significant factors for MRR during the turning of Al-7075. Abbas et al [25] concluded that for obtaining Ra of 0.8 μm, the maximum expected MRR was of 5668 mm 3 / min obtained at V C of 175 m/min, F r of 0.043 mm/rev and D OC of 0.75 mm.…”

Section: Introductionmentioning

confidence: 99%

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Parametric analysis of turning HSLA steel under minimum quantity lubrication (MQL) and nanofluids-based minimum quantity lubrication (NF-MQL): a concept of one-step sustainable machining

Javid

Jahanzaib

Jawad

et al. 2021

Int J Adv Manuf Technol

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The requirement of cost-effective and ecological production systems is crucial in the competitive market. In this regard, the focus is shifted towards sustainable and cleaner machining processes. Besides the clean technologies, effective parametric control is required for machining materials (such as High Strength Low Alloy Steels) specifically designed for high strength applications having superior physio-chemical properties. Therefore, the machinability complexities require optimized solutions to reduce temperature elevation and tooling costs and improve machining of these materials. Complying to the market needs, this research examines the effectiveness of nanofluid on tool life, wear mechanisms, surface roughness (Ra), surface morphology, and material removal rate (MRR) in turning of 30CrMnSiA (HSLA) using minimum quantity lubrication (MQL) and SiO2-H2O nanofluids (NF-MQL). A systematic investigation based on physical phenomena involved is carried out considering four process parameters (cutting speed (VC), feed rate (Fr), depth of cut (DOC), and mode of lubrication for machining. Fr is found as the vital parameter for surface roughness while MRR is highly influenced by DOC regardless of lubrication approach. One-step sustainability technique is applied, in which process variables used for roughing conditions are analogous to attain surface comparable to finished machining without compromising process efficiency and demonstrate its feasibility through optimal settings under NF-MQL. Multi-response optimization proved the NF-MQL machining condition as the best alternative which result in 28.34% and 5.09% improvements for surface roughness and MRR, respectively. Moreover, the use of SiO2 is recommended over MQL due to lower energy consumption, low tool wear, and better surface integrity, sustainable liquid, and related costs.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%