各种冷却液条件对合金 20 铣削加工影响的多重响应优化和实验研究

IF 3.1 3区 工程技术 Q2 ENGINEERING, MECHANICAL Lubricants Pub Date : 2024-07-05 DOI:10.3390/lubricants12070248
Youlei Zhao, Na Cui, Zhenxian Hou, Jing Li, Junqiang Liu, Yapeng Xu
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引用次数: 0

摘要

本研究调查了合金 20 在不同冷却条件下的加工过程:最小量润滑 (MQL)、二氧化碳 (CO2) 以及 MQL + CO2 混合方法。研究重点是优化切削参数、了解表面特征、分析刀具磨损模式和评估切屑形成。为了确定优化的切削条件,采用了基于面心 CCD 的响应面方法 (RSM)。通过 SEM 成像检查了表面粗糙度、刀具磨损和切屑形态。表面粗糙度特征显示出每种冷却液条件的独特性:MQL 冷却会导致相对粗糙的表面和刀头退化,CO2 冷却会导致表面划痕和刀具崩裂,而 MQL + CO2 冷却则会在优化条件下产生更光滑的表面和紧密连续的切屑。这项研究对切削参数和冷却剂之间复杂的相互作用提出了宝贵的见解,有助于优化加工工艺,改善合金 20 的加工效果。根据 RSM 结果,最佳参数设置为 Vc = 44 m/min、f = 0.04 mm/rev、ap = 0.43 mm。
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Multi-Response Optimization and Experimental Investigation of the Influences of Various Coolant Conditions on the Milling of Alloy 20
This study investigates the machining processes of Alloy 20 under different cooling conditions: Minimum Quantity Lubrication (MQL), Carbon Dioxide (CO2), and the hybrid MQL + CO2 approach. The research focuses on optimizing the cutting parameters, understanding the surface characteristics, analysing the tool wear patterns, and evaluating the chip formation. Face-centred CCD-based response surface methodology (RSM) is applied in order to identify the optimized cutting conditions. Surface roughness, tool wear, and chip morphology are examined through SEM imaging. Surface roughness characteristics reveal distinctive characteristics for each coolant condition: MQL cooling results in a relatively rough surface with tool nose degradation, CO2 cooling shows scratches on the surface and tool chipping, and MQL + CO2 cooling yields a smoother finish with close and continuous chip formation under the optimized conditions. This study contributes valuable insights into the complex interactions between cutting parameters and coolants, aiding in the optimization of machining processes for improved outcomes of the machining of Alloy 20. Based on the RSM outcomes, the optimal parametric settings obtained are Vc = 44 m/min, f = 0.04 mm/rev, and ap = 0.43 mm.
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来源期刊
Lubricants
Lubricants Engineering-Mechanical Engineering
CiteScore
3.60
自引率
25.70%
发文量
293
审稿时长
11 weeks
期刊介绍: This journal is dedicated to the field of Tribology and closely related disciplines. This includes the fundamentals of the following topics: -Lubrication, comprising hydrostatics, hydrodynamics, elastohydrodynamics, mixed and boundary regimes of lubrication -Friction, comprising viscous shear, Newtonian and non-Newtonian traction, boundary friction -Wear, including adhesion, abrasion, tribo-corrosion, scuffing and scoring -Cavitation and erosion -Sub-surface stressing, fatigue spalling, pitting, micro-pitting -Contact Mechanics: elasticity, elasto-plasticity, adhesion, viscoelasticity, poroelasticity, coatings and solid lubricants, layered bonded and unbonded solids -Surface Science: topography, tribo-film formation, lubricant–surface combination, surface texturing, micro-hydrodynamics, micro-elastohydrodynamics -Rheology: Newtonian, non-Newtonian fluids, dilatants, pseudo-plastics, thixotropy, shear thinning -Physical chemistry of lubricants, boundary active species, adsorption, bonding
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