Influence of minimum quantity lubrication on surface integrity of ground hardened H13 hot die steel

Awale, Akash Subhash; Srivastava, Arvind; Vashista, Meghanshu; Yusufzai, Mohd Zaheer Khan

doi:10.1007/s00170-018-2777-0

Cited by 33 publications

(3 citation statements)

References 45 publications

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“…22(a)). The similar result was also obtained in grinding of H13 hot die steel using castor oil [101]. The average thickness of the deformed layer, which was related to the sticking friction due to elevated temperature [102], was in the range from 122 to 167 mm [74] (Fig.…”

Section: Machined Surface Integritysupporting

confidence: 80%

Nano-enhanced biolubricant in sustainable manufacturing: From processability to mechanisms

Zhang

et al. 2022

Friction

169

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To eliminate the negative effect of traditional metal-working fluids and achieve sustainable manufacturing, the usage of nano-enhanced biolubricant (NEBL) is widely researched in minimum quantify lubrication (MQL) machining. It’s improved tool wear and surface integrity have been preliminarily verified by experimental studies. The previous review papers also concluded the major influencing factors of processability including nano-enhancer and lubricant types, NEBL concentration, micro droplet size, and so on. Nevertheless, the complex action of NEBL, from preparation, atomization, infiltration to heat transfer and anti-friction, is indistinct which limits preparation of process specifications and popularity in factories. Especially in the complex machining process, in-depth understanding is difficult and meaningful. To fill this gap, this paper concentrates on the comprehensive quantitative assessment of processability based on tribological, thermal, and machined surface quality aspects for NEBL application in turning, milling, and grinding. Then it attempts to answer mechanisms systematically considering multi-factor influence of molecular structure, physicochemical properties, concentration, and dispersion. Firstly, this paper reveals advanced lubrication and heat transfer mechanisms of NEBL by quantitative comparison with biolubricant-based MQL machining. Secondly, the distinctive filmformation, atomization, and infiltration mechanisms of NEBL, as distinguished from metal-working fluid, are clarified combining with its unique molecular structure and physical properties. Furtherly, the process optimization strategy is concluded based on the synergistic relationship analysis among process variables, physicochemical properties, machining mechanisms, and performance of NEBL. Finally, the future development directions are put forward aiming at current performance limitations of NEBL, which requires improvement on preparation and jet methods respects. This paper will help scientists deeply understand effective mechanism, formulate process specifications, and find future development trend of this technology.

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Section: Machined Surface Integritysupporting

confidence: 80%

Nano-enhanced biolubricant in sustainable manufacturing: From processability to mechanisms

Zhang

et al. 2022

Friction

169

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show abstract

“…The core problem is to solve heat dissipation, antifriction and antiwear problems through the preparation and use of biolubricant or nano-enhanced biolubricants under extreme grinding conditions. Scholars have carried out a series of experimental studies using vegetable oil as biological cooling medium to evaluate the grinding performance parameters [53][54][55][56][57]. However, the influencing law and knowledge system amongst (1) physicochemical property of lubricants, (2) antifriction and heat transfer behaviour, and (3) machining performance parameters remain unknown.…”

Section: Introductionmentioning

confidence: 99%

Comparative assessment of force, temperature, and wheel wear in sustainable grinding aerospace alloy using biolubricant

Cui

Zhang

et al. 2022

Front. Mech. Eng.

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The substitution of biolubricant for mineral cutting fluids in aerospace material grinding is an inevitable development direction, under the requirements of the worldwide carbon emission strategy. However, serious tool wear and workpiece damage in difficult-to-machine material grinding challenges the availability of using biolubricants via minimum quantity lubrication. The primary cause for this condition is the unknown and complex influencing mechanisms of the biolubricant physicochemical properties on grindability. In this review, a comparative assessment of grindability is performed using titanium alloy, nickel-based alloy, and high-strength steel. Firstly, this work considers the physicochemical properties as the main factors, and the antifriction and heat dissipation behaviours of biolubricant in a high temperature and pressure interface are comprehensively analysed. Secondly, the comparative assessment of force, temperature, wheel wear and workpiece surface for titanium alloy, nickel-based alloy, and high-strength steel confirms that biolubricant is a potential replacement of traditional cutting fluids because of its improved lubrication and cooling performance. High-viscosity biolubricant and nano-enhancers with high thermal conductivity are recommended for titanium alloy to solve the burn puzzle of the workpiece. Biolubricant with high viscosity and high fatty acid saturation characteristics should be used to overcome the bottleneck of wheel wear and nickel-based alloy surface burn. The nano-enhancers with high hardness and spherical characteristics are better choices. Furthermore, a different option is available for high-strength steel grinding, which needs low-viscosity biolubricant to address the debris breaking difficulty and wheel clogging. Finally, the current challenges and potential methods are proposed to promote the application of biolubricant.

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“…Such hardness is extremely high but the hardened layer is thin. The minimum quantity lubrication (MQL) technique [9] is another method, similar to nitriding but capable for providing a thicker hardened layer. However, this hardening depth is also limited (300-500 μm), and a thin protective layer with extremely high hardness is prone to an eggshell effect and thus to premature failure [7].…”

Section: Introductionmentioning

confidence: 99%

Laser remelting of AISI H13 tool steel: influence of cooling rate on the surface properties

Xie

Raoelison²,

Di³

et al. 2022

Surf. Topogr.: Metrol. Prop.

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Laser surface remelting is an effective and suitable process to extend the longevity of components without additional materials. In this paper, a high energy density laser with a large size was used to improve the hardness of H13 tool steel. A predictive numerical multiphysics coupled model was established to investigate the temperature field and the profile of the molten pool. The effect of laser scanning speeds is investigated in terms of heat-affected depth, surface topography, and mechanical properties. In detail, the simulated temperature gradients with laser scanning speed in a range of 12 to 24 mm/s are ~8.4×105 K/m, involving a cooling rate less than 1×104 K/s can prevent cracking. The hardness of the remelted zone is in the range of 700-850 HV0.2, and the tensile performances are also recorded. The model in this work could not only link the mechanical properties with process parameters together, but also guide the actual experiment or processing bypassing the trial-and-error method, as well as extend to other materials and laser additive manufacturing.

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Influence of minimum quantity lubrication on surface integrity of ground hardened H13 hot die steel

Cited by 33 publications

References 45 publications

Nano-enhanced biolubricant in sustainable manufacturing: From processability to mechanisms

Nano-enhanced biolubricant in sustainable manufacturing: From processability to mechanisms

Comparative assessment of force, temperature, and wheel wear in sustainable grinding aerospace alloy using biolubricant

Laser remelting of AISI H13 tool steel: influence of cooling rate on the surface properties

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