Investigation of geometric parameters with HSS tools in machining polyamide 6 using Taguchi method

Quitiaquez, Patricio; Cocha, Juan; Quitiaquez, William; Vaca, Xavier

doi:10.1016/j.matpr.2021.08.002

Cited by 6 publications

(4 citation statements)

References 24 publications

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“…Generally speaking, micro-CNC samples presented Shore D hardness of 74.1± 1.5 and 73.7 + 1.4 for FH 0.3 mm and FH 0.6 mm respectively, which are higher than those of 3D printed samples (figure 5). Shore D hardness values are similar to those reported by Quitiaquez and coworkers in machining nylon processes with high-speed steel [28] but inferior to cast nylon 6 [42], showing an influence of the thermal treatment on hardness.…”

Section: Hardnesssupporting

confidence: 86%

“…The textured surfaces present a surface finish in accordance with the additive [26,27] and subtractive [28] manufacturing process. The mean values of Ra and Rq of the 3D-printed and micro-CNC machined samples are shown in table 5. It was observed that the additive manufacturing method fulfills the surface roughness requirements of a forming process in polymers regardless of whether the sample is patterned or untextured.…”

Section: Surface Topography and Roughness Of The Textured Surfacesmentioning

confidence: 99%

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Comparison of textured nylon surfaces manufactured by CNC micromachining and 3D printing

Ballesteros,

Cano,

García

et al. 2024

Surf. Topogr.: Metrol. Prop.

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Patterned surfaces can be designed and engineered to control friction and wear resistance in various applications. In the present work, a comparative analysis of two contrasting manufacturing processes for surface texturing of polyamide, namely 3D printing by fused filament fabrication (FFF) and CNC micromachining (micro CNC) as additive and subtractive manufacturing techniques respectively was carried out. The analysis included the evaluation of the topography, roughness, mechanical properties, and tribological performance of the texturized surfaces. Both manufacturing routes were suitable for fabricating deterministic surfaces, being the micro CNC method the one that provided better repeatability and surface finishing as well as higher hardness. These factors influenced the tribological behavior of the polyamide when in contact with AISI 304 stainless steel. The relations between size, distribution and height of the texturized elements and the manufacturing technique with COF are also discussed.

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Section: Hardnesssupporting

confidence: 86%

Section: Surface Topography and Roughness Of The Textured Surfacesmentioning

confidence: 99%

Comparison of textured nylon surfaces manufactured by CNC micromachining and 3D printing

Ballesteros,

Cano,

García

et al. 2024

Surf. Topogr.: Metrol. Prop.

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“…This phenomenon may be associated with the directionality of the cold fluid inside the device as it presents a longer path with greater contact with the There was an increase in heat transfer in the fluids when varying the size of the baffle walls along with their inclination. This phenomenon may be associated with the directionality of the cold fluid inside the device by presenting a more extensive trajectory with greater contact with the surface of the hot fluid ducts [31], and with the possible presence of a greater amount of turbulence vortices in the areas adjacent to the baffle walls.…”

Section: Discussionmentioning

confidence: 99%

Numerical Simulation of the Heat Transfer Inside a Shell and Tube Heat Exchanger Considering Different Variations in the Geometric Parameters of the Design

Estupiñán-Campos,

Quitiaquez,

Nieto-Londoño

et al. 2024

Energies

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The present study aims to analyze the heat transfer variations in different models of shell and tube heat exchangers considering geometric variations in the baffle angles and in the tube’s profiles. Each baffle configuration and geometric variation in the profiles were tested under different mass flow rates (0.25, 0.5, 0.75, and 1 kg·s−1) in the shell to study the heat transfer improvement. The models were simulated using a CFD simulation software ANSYS Fluent including an experimental geometry which was used to validate the simulation process. The experiment results are in good agreement with the CFD results. The analysis of the results shows that an angle of 60° in the baffles generated the highest heat flow (more than 40 kW) with an inclination to the cold flow inlet and a mixed distribution considering a mass flow rate of 1 kg·s−1 in the shell. In addition, the horizontal elliptic profile achieved a heat flow higher than 29 kW with a mass flow rate of 0.5 kg·s−1 in the shell.

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“…Taguchi's parametric optimization method based on the (S/N) ratio is widely used in many types of research due to save time and resources to identify factors that influence the experimental design process with minimal experimentation [15]. P. Quitiaquez et al [16], D. Lazarević et al [17] successfully used Taguchi's method to minimize the roughness (Ra) when turning PA-6. V. N. [18] conducted an experimental study on machining PA66-GF30% with a metal carbide tool (K10) using Taguchi's method to obtain the optimal cutting regimes of responses (Pc and Ks) individually.…”

Section: Silva Et Almentioning

confidence: 99%

Modeling and optimization in turning of PA66-GF30% and PA66 using multi-criteria decision-making (PSI, MABAC, and MAIRCA) methods: a comparative study

Haoues

Yallese

Belhadi

et al. 2022

Int J Adv Manuf Technol

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Semi-crystalline polymers are widely used in modern industry. Indeed, they are highly coveted because of their excellent compromise between advantageous mechanical properties, high lightness, good productivity and low cost. In this work, a modeling study of performance parameters such as;(Ra), (Fz), (Pc) and (MRR) was carried out using the surface response methodology (RSM). The machining operations were performed dry on two polyamides (PA66-GF30% and PA66) following the L9 (3 3 ) orthogonal array. The results were used to perform a mono-objective optimization based on the Taguchi signal-to-noise ratio (S/N). In addition, a comparative study between three multiobjective optimization methods MCDM (PSI, MABAC and MAIRCA) coupled with the Taguchi approach was realized. The target objective is to reduce (Ra, Fz and Pc) and maximize (MRR) simultaneously. The results found are original and can help researchers working in the field of machining polyamides with and without reinforcement.

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Investigation of geometric parameters with HSS tools in machining polyamide 6 using Taguchi method

Cited by 6 publications

References 24 publications

Comparison of textured nylon surfaces manufactured by CNC micromachining and 3D printing

Comparison of textured nylon surfaces manufactured by CNC micromachining and 3D printing

Numerical Simulation of the Heat Transfer Inside a Shell and Tube Heat Exchanger Considering Different Variations in the Geometric Parameters of the Design

Modeling and optimization in turning of PA66-GF30% and PA66 using multi-criteria decision-making (PSI, MABAC, and MAIRCA) methods: a comparative study

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