Results 31 to 40 of about 1,925,224 (223)
A review of micro-powder injection moulding as a microfabrication technique [PDF]
, 2011 Micro-powder injection moulding (µPIM) is a fast-developing micro-manufacturing technique for the production of metal and ceramic components. Shape complexity, dimensional accuracy, replication fidelity, material variety combined with high- volume ...
Alcock, Jeffrey R. +3 more
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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 +5 more
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Evaluating and controlling process variability in micro-injection moulding [PDF]
, 2011 Microsystem technologies require relatively strict quality requirements. This is because their functionalities are usually dependent on stringent requirements of dimensions, masses or tolerances. When mass-producing micro-components, e.g.
Alcock, Jeffrey R., Attia, Usama M.
core +1 more source
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 +3 more
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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 +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 +3 more
doaj +1 more source
On the performance of a viscoelastic constitutive model for micro injection moulding simulations
eXPRESS Polymer Letters, 2012 The numerical simulation of the injection moulding process involving microstructures presents several challenges, mainly due to the surface effects that dominate the flow behaviour at the microscale. In this paper a new approach, which employs weld lines
G. Lucchetta, A. Gava
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Biosensors and Bioelectronics: X, 2022 Capillaries are small microscopic channels found in nature predominantly. These flow blood in animals and food, water and nutritions in plants.
Praveen Lakhera +4 more
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An evaluation of process-parameter and part-geometry effects on the quality of filling in micro-injection moulding [PDF]
, 2009 This paper addresses the use of micro-injection moulding for the fabrication of polymeric parts with microfeatures. Five separate parts with different micro- feature designs are moulded of Polymethylmethacrylate.
Alcock, Jeffrey R., Attia, Usama M.
core +1 more source
Journal of Thermal Science and Technology, 2011 We report on the superhydrophobicity of self-organized surfaces of polyethylene (PE) nanowire arrays that are fabricated by a nano-injection moulding technique.
Bing-Yang CAO +6 more
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