Results 21 to 30 of about 15,674 (292)

Precision replication of micro features using micro injection moulding: Process simulation and validation

Materials & Design, 2019
Commercial software for injection moulding is available to optimise the mould design for macroscale products, but such software cannot accurately simulate the moulding process and defects for micro features, which are critical for the performance of ...
Haoyang Zhang, Fengzhou Fang, Michael D. Gilchrist, Nan Zhang   +3 more
doaj   +1 more source

A process chain for integrating microfluidic interconnection elements by micro- overmoulding of thermoplastic elastomers [PDF]

, 2010
This paper presents a process chain for in-line integration of microfluidic interconnection elements by a variant of micro-injection moulding (mu IM). A SEBS-based thermoplastic elastomer (TPE) was moulded over polymethylmethacrylate (PMMA) to produce
Alcock, Jeffrey R., Attia, Usama M.
core   +1 more source

Creating movable interfaces by micro-powder injection moulding [PDF]

, 2013
This paper presents a novel in situ technique to produce articulated components with high-precision, micro-scale movable interfaces by micro-powder injection moulding (μPIM).
Alcock, Jeffrey R., Annicchiarico, Daniele, Attia, Usama M., Hauata, M., Walton, I.   +4 more
core   +1 more source

Multiphase and multiscale approaches for modelling the injection of textured moulds [PDF]

, 2016
International audienceMicro-injection moulding is frequently used for the mass production of devices in micro-medical technologies, micro-optics and micro-mechanics.
Laure, Patrice, Nakhoul, Rebecca, Silva, Luisa, Vincent, Michel   +3 more
core   +2 more sources

Flatness optimization of micro-injection moulded parts: The case of a PMMA microfluidic component [PDF]

, 2011
Micro-injection moulding (µ-IM) has attracted a lot of interest because of its potential for the production of low-cost, miniaturized parts in high-volume.
Alcock, Jeffrey R., Allen, David M., Attia, Usama M., Lucchetta, G., Marson, Silvia, Wilson, A.   +5 more
core   +1 more source

3D Printing of Metallic Microstructured Mould Using Selective Laser Melting for Injection Moulding of Plastic Microfluidic Devices

Micromachines, 2019
A new method, a 3D printing technique, in particular, selective laser melting (SLM), has been used to fabricate moulds for the injection moulding of thermoplastic microfluidic chips that are suitable for prototyping and early stage scale-up.
Nan Zhang, Jinghang Liu, Honggang Zhang, Nigel J. Kent, Dermot Diamond, Michael D. Gilchrist   +5 more
doaj   +1 more source

In-Mould OCT Sensors Combined with Piezo-Actuated Positioning Devices for Compensating for Displacement in Injection Overmoulding of Optoelectronic Parts

Sensors, 2023
When overmoulding optoelectronic devices with optical elements, precise alignment of the overmoulded part and the mould is of great importance. However, mould-integrated positioning sensors and actuators are not yet available as standard components. As a
Günther Hannesschläger, Martin Schwarze, Elisabeth Leiss-Holzinger, Christian Rankl   +3 more
doaj   +1 more source

High Temperature Adiabatic Heating in µ-IM Mould Cavities—A Case for Venting Design Solutions

Micromachines, 2020
Micro-injection moulding (µ-IM) is a fabrication method that is used to produce miniature parts on a mass production scale. This work investigates how the process parameter settings result in adiabatic heating from gas trapped and rapidly compressed ...
Matthew Tucker, Christian A. Griffiths, Andrew Rees, Gethin Llewelyn   +3 more
doaj   +1 more source

PMMA Lens Arrays for Micro Concentrator Solar Cells Produced by Hot Embossing

U.Porto Journal of Engineering, 2022
The rising energetical needs of modern society have been increasingly pushing for the improvement in energy efficiency. Thin-film solar cell technology encompasses several types of devices whose purpose is to gather energy emitted from a luminous source ...
Bruno M. C. Oliveira, Marcionilo Júnior, R. F. Santos, E. W. Sequeiros   +3 more
doaj   +1 more source

Temperature effects on DLC coated micro moulds [PDF]

, 2016
Microinjection moulding is a key enabling technology for replicating miniaturized components and parts with functional features at the micrometer and even sub-micrometer length scale.
Andrew Rees, Christian Griffiths, Rhian Kerton   +2 more
core   +1 more source