Effect of solid lubricant reinforcing on drilling performance of castamide and thermal analysis

IF 3.8 4区 工程技术 Q2 CHEMISTRY, APPLIED
Eser Yarar, Tamer Sinmazçelik
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引用次数: 0

Abstract

This study addresses the pressing need for enhancing the machining performance and hole quality of castamide by investigating the effects of solid lubricant addition and drilling parameters. Castamide, a highly crystalline polyamide synthesized via anionic ring-opening polymerization, offers superior mechanical, physical, and chemical properties compared to conventional polyamide 6. However, its machining process, particularly drilling, remains a critical challenge due to its viscoelastic nature and sensitivity to heat generation. Using experimental investigations, thrust forces, drilling temperatures, hole geometry, and quality parameters are systematically analyzed and discussed. Notably, the study introduces Kestlub, a modified version of castamide with solid lubricant, and evaluates its drilling performance, a previously unexplored area in the literature. The research employs response surface methodology to model experimental data, considering both linear and quadratic effects of drilling parameters. Additionally, the significance of each parameter is assessed using ANOVA tables and Pareto charts, offering valuable insights into optimizing the drilling process for enhanced hole quality in castamide. It found that optimal drilling conditions occur at low rotational speeds and high feed rates, but thermal damage, influenced by factors like thermal conductivity and transition temperature, affects hole geometry and burr formation.

Highlights

  • Drilling performances of solid lubricant reinforced castamides were investigated.
  • Drilling temperatures were recorded with a thermal camera and differential scanning calorimeter and thermal gravimetric analyses were performed.
  • Drilling properties were analyzed statistically according to the response surface method.
  • It found that optimal drilling conditions occur at low rotational speeds and high feed rates.

Abstract Image

固体润滑剂强化对铸酰胺钻孔性能的影响及热分析
本研究通过研究固体润滑剂添加量和钻孔参数的影响,满足了提高铸酰胺加工性能和孔质量的迫切需要。铸酰胺是一种通过阴离子开环聚合合成的高结晶聚酰胺,与传统的聚酰胺 6 相比,具有优异的机械、物理和化学特性。然而,由于其粘弹性和对发热的敏感性,其加工过程(尤其是钻孔)仍然是一个严峻的挑战。通过实验研究,对推力、钻孔温度、孔的几何形状和质量参数进行了系统分析和讨论。值得注意的是,该研究引入了带有固体润滑剂的改良版铸酰胺 Kestlub,并对其钻孔性能进行了评估,这在以前的文献中是一个未开发的领域。研究采用响应面方法对实验数据进行建模,同时考虑了钻孔参数的线性和二次方效应。此外,还使用方差分析表和帕累托图评估了各参数的重要性,为优化钻孔工艺以提高铸酰胺的孔质量提供了宝贵的见解。研究使用热像仪和差示扫描量热仪记录钻孔温度,并进行了热重力分析,根据响应面法对钻孔性能进行了统计分析。
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来源期刊
Journal of Vinyl & Additive Technology
Journal of Vinyl & Additive Technology 工程技术-材料科学:纺织
CiteScore
5.40
自引率
14.80%
发文量
73
审稿时长
>12 weeks
期刊介绍: Journal of Vinyl and Additive Technology is a peer-reviewed technical publication for new work in the fields of polymer modifiers and additives, vinyl polymers and selected review papers. Over half of all papers in JVAT are based on technology of additives and modifiers for all classes of polymers: thermoset polymers and both condensation and addition thermoplastics. Papers on vinyl technology include PVC additives.
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