Hot embossing of polypropylene micro-tubes into functional tubular components with controlled inner-pore sizes

Research output: Contribution to journalConference Contribution

Abstract

To meet ever-increasing demands on the micro-components for medical and non-medical applications, a new micro-shaping technology - “hot embossing of micro-tubes”, had been developed for the forming of polymeric tubular micro-components. The paper presents the results from the forming of Polypropylene(PP) micro-tubes with outer diameters of 1.3mm and inner diameters 0.6mm, to achieve various reduced inner-features. The study was effected by combining experiment, numerical simulation and SEM analysis. FE simulation was implemented by using the material data obtained from the material characterisation tests. The forming experiment was conducted with a high-precision hot-embossing machine, developed in-house, with automated handling and good reliability and repeatability. The Polypropylene (PP) micro-tubes were successfully formed into the desired features at the temperatures of 60°C and 100°C respectively. The influences of the parameters/factors, such as tool design, temperature, forming pressure and holding time, on the quality of the shaped parts, are discussed in details. Based on this study, it is concluded that PP is an ideal candidate material among the polymeric materials for hot embossing of tubular micro-components, due to its good ductility, low transition temperature and low viscosity.

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Polypropylenes
Pore size
Superconducting transition temperature
Ductility
Experiments
Viscosity
Temperature
Scanning electron microscopy
Computer simulation
Polymers

Keywords

  • micro-forming
  • manufacturing process
  • tool geometry

Cite this

@article{80472b2b79a04d51ac3fbb79d9c9887e,
title = "Hot embossing of polypropylene micro-tubes into functional tubular components with controlled inner-pore sizes",
abstract = "To meet ever-increasing demands on the micro-components for medical and non-medical applications, a new micro-shaping technology - “hot embossing of micro-tubes”, had been developed for the forming of polymeric tubular micro-components. The paper presents the results from the forming of Polypropylene(PP) micro-tubes with outer diameters of 1.3mm and inner diameters 0.6mm, to achieve various reduced inner-features. The study was effected by combining experiment, numerical simulation and SEM analysis. FE simulation was implemented by using the material data obtained from the material characterisation tests. The forming experiment was conducted with a high-precision hot-embossing machine, developed in-house, with automated handling and good reliability and repeatability. The Polypropylene (PP) micro-tubes were successfully formed into the desired features at the temperatures of 60°C and 100°C respectively. The influences of the parameters/factors, such as tool design, temperature, forming pressure and holding time, on the quality of the shaped parts, are discussed in details. Based on this study, it is concluded that PP is an ideal candidate material among the polymeric materials for hot embossing of tubular micro-components, due to its good ductility, low transition temperature and low viscosity.",
keywords = "micro-forming, manufacturing process, tool geometry",
author = "Jie Zhao and Yi Qin",
year = "2018",
month = "9",
day = "17",
doi = "10.1051/matecconf/201819010005",
language = "English",
volume = "190",
journal = "MATEC Web of Conferences",
issn = "2261-236X",

}

Hot embossing of polypropylene micro-tubes into functional tubular components with controlled inner-pore sizes. / Zhao, Jie; Qin, Yi.

In: MATEC Web of Conferences, Vol. 190, 10005, 17.09.2018.

Research output: Contribution to journalConference Contribution

TY - JOUR

T1 - Hot embossing of polypropylene micro-tubes into functional tubular components with controlled inner-pore sizes

AU - Zhao, Jie

AU - Qin, Yi

PY - 2018/9/17

Y1 - 2018/9/17

N2 - To meet ever-increasing demands on the micro-components for medical and non-medical applications, a new micro-shaping technology - “hot embossing of micro-tubes”, had been developed for the forming of polymeric tubular micro-components. The paper presents the results from the forming of Polypropylene(PP) micro-tubes with outer diameters of 1.3mm and inner diameters 0.6mm, to achieve various reduced inner-features. The study was effected by combining experiment, numerical simulation and SEM analysis. FE simulation was implemented by using the material data obtained from the material characterisation tests. The forming experiment was conducted with a high-precision hot-embossing machine, developed in-house, with automated handling and good reliability and repeatability. The Polypropylene (PP) micro-tubes were successfully formed into the desired features at the temperatures of 60°C and 100°C respectively. The influences of the parameters/factors, such as tool design, temperature, forming pressure and holding time, on the quality of the shaped parts, are discussed in details. Based on this study, it is concluded that PP is an ideal candidate material among the polymeric materials for hot embossing of tubular micro-components, due to its good ductility, low transition temperature and low viscosity.

AB - To meet ever-increasing demands on the micro-components for medical and non-medical applications, a new micro-shaping technology - “hot embossing of micro-tubes”, had been developed for the forming of polymeric tubular micro-components. The paper presents the results from the forming of Polypropylene(PP) micro-tubes with outer diameters of 1.3mm and inner diameters 0.6mm, to achieve various reduced inner-features. The study was effected by combining experiment, numerical simulation and SEM analysis. FE simulation was implemented by using the material data obtained from the material characterisation tests. The forming experiment was conducted with a high-precision hot-embossing machine, developed in-house, with automated handling and good reliability and repeatability. The Polypropylene (PP) micro-tubes were successfully formed into the desired features at the temperatures of 60°C and 100°C respectively. The influences of the parameters/factors, such as tool design, temperature, forming pressure and holding time, on the quality of the shaped parts, are discussed in details. Based on this study, it is concluded that PP is an ideal candidate material among the polymeric materials for hot embossing of tubular micro-components, due to its good ductility, low transition temperature and low viscosity.

KW - micro-forming

KW - manufacturing process

KW - tool geometry

UR - http://www.icnft2018.com/

U2 - 10.1051/matecconf/201819010005

DO - 10.1051/matecconf/201819010005

M3 - Conference Contribution

VL - 190

JO - MATEC Web of Conferences

T2 - MATEC Web of Conferences

JF - MATEC Web of Conferences

SN - 2261-236X

M1 - 10005

ER -