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A Multi-Response Optimization of Thrust Forces, Torques, and the Power of Tapping Operations by Cooling Air in Reinforced and Unreinforced Polyamide PA66

Author

Listed:
  • Rosario Domingo

    (Department of Construction and Manufacturing Engineering, Universidad Nacional de Educación a Distancia (UNED), C/Juan del Rosal 12, Madrid E-28040, Spain)

  • Beatriz De Agustina

    (Department of Construction and Manufacturing Engineering, Universidad Nacional de Educación a Distancia (UNED), C/Juan del Rosal 12, Madrid E-28040, Spain)

  • Marta M. Marín

    (Department of Construction and Manufacturing Engineering, Universidad Nacional de Educación a Distancia (UNED), C/Juan del Rosal 12, Madrid E-28040, Spain)

Abstract

The use of cooling air during machining is an environmentally conscious procedure, and its applicability to different processes is a research priority. We studied tapping operations, an important operation in the assembly process, using cooling air with unreinforced polyamide (PA66) and polyamide reinforced with glass fiber (PA66-GF30). These materials are widely used in industry, but their behavior with respect to tapping has not been studied. We analyze the outcomes regarding the thrust force, torque, and power at cutting speeds between 15 and 60 m/min. The experimental tests were executed using cooling air at 22 °C, 2 °C, and −18 °C in dry conditions. The M12 × 1.75 mm taps were high-speed steel, with cobalt as the base material and coatings of TiN and AlCrN. To identify the more influential factors, an analysis of variance was performed, along with multi-response optimization to identify the desirability values. This optimization shows that the optimum for PA66can be found in environments close to 3 °C, while the optimum for PA66-GF30 is found at the minimal temperature studied (−18 °C). Thus, cooling air can be considered an adequate procedure for tapping operations, to increase the sustainability of the manufacturing processes.

Suggested Citation

  • Rosario Domingo & Beatriz De Agustina & Marta M. Marín, 2018. "A Multi-Response Optimization of Thrust Forces, Torques, and the Power of Tapping Operations by Cooling Air in Reinforced and Unreinforced Polyamide PA66," Sustainability, MDPI, vol. 10(3), pages 1-14, March.
    • Handle: RePEc:gam:jsusta:v:10:y:2018:i:3:p:889-:d:137146
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    References listed on IDEAS

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    1. Francesco Modica & Valeria Marrocco & Giacomo Copani & Irene Fassi, 2011. "Sustainable Micro-Manufacturing of Micro-Components via Micro Electrical Discharge Machining," Sustainability, MDPI, vol. 3(12), pages 1-14, December.
    2. Jin Huang & Liangliang Jin & Chaoyong Zhang, 2017. "Mathematical Modeling and a Hybrid NSGA-II Algorithm for Process Planning Problem Considering Machining Cost and Carbon Emission," Sustainability, MDPI, vol. 9(10), pages 1-18, September.
    3. Rosario Domingo & Marta María Marín & Juan Claver & Roque Calvo, 2015. "Selection of Cutting Inserts in Dry Machining for Reducing Energy Consumption and CO 2 Emissions," Energies, MDPI, vol. 8(11), pages 1-15, November.
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    Cited by:

    1. Xinnian Wang & Keyi Xing & Chao-Bo Yan & Mengchu Zhou, 2019. "A Novel MOEA/D for Multiobjective Scheduling of Flexible Manufacturing Systems," Complexity, Hindawi, vol. 2019, pages 1-14, June.

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