8/12/2019 Metal Additive Manufacturing of High-pressure Micro-pumps
1/16
METAL ADDITIVE MANUFACTURING
HIGH-PRESSURE MICRO-PUMPS
PRES
MUHAMM
ROLL
GUIDED BY: Mr NEHZEB MOHAMAD
8/12/2019 Metal Additive Manufacturing of High-pressure Micro-pumps
2/16
Micro pumps-What and Why?
Pumps with functional dimension
micrometre range
Miniaturized overall size, potentia
improved dosing accuracy
Rely on micro-actuation principles
low power consumption,fast respo
simple structure.
8/12/2019 Metal Additive Manufacturing of High-pressure Micro-pumps
3/16
Micropumps-two types
Mechanical micropump
need a physical actuator for the pumping
Fluid flow is achieved by oscillatory or
rotational pressure forces.
Non-mechanical micropu
has to transform specific no
energy
electroosmotic, electro-hyd
magneto-hydrodynamic, el
etc.
8/12/2019 Metal Additive Manufacturing of High-pressure Micro-pumps
4/16
Mechanical micro pumps-Parts
Casing
Micro-valves
Diaphrams
actuators
8/12/2019 Metal Additive Manufacturing of High-pressure Micro-pumps
5/16
How a mechanical micropump works?
An actuator is affixed to the diaphragm
Actuation force effects diaphragm
moving
Diaphragm alternately increase and
decrease the pump chamber volume
Fluid is drawn into the pump chamber
during the suction stroke
Forced out of the pump chamber during
the discharge stroke
Mechanical micro-pump w
diaphragm motion
8/12/2019 Metal Additive Manufacturing of High-pressure Micro-pumps
6/16
METAL ADDITIVE MANUFACTURIN
Making a three-dimensional object from a 3Dmodel
CAD designed model is used
The layers from CAD models are automatically
fused to create the final shape.
Ability to create almost any shape or
geometric featureAn ORDbot Q
8/12/2019 Metal Additive Manufacturing of High-pressure Micro-pumps
7/16
Additive Manufacturing in Micropum
Selective Laser Sintering(SLS)
Laser as the power source to sinter powdered
material
Binding the material together to create a solid
structure
Mainly been used for rapid prototyping and for
low-volume production of component parts
Can produce parts from a relatively wide range
of commercially available powder materials
8/12/2019 Metal Additive Manufacturing of High-pressure Micro-pumps
8/16
SLS - PROCESS
8/12/2019 Metal Additive Manufacturing of High-pressure Micro-pumps
9/16
Selective Laser Melting(SLM)
Create three-dimensional metal parts by
fusing fine metallic powders together Typical deposition rates of 530 cm/h
Typical powder particle size of between
10 and 50m
Laser powers of 200W and up to 400W
High degree of geometric freedom
Fully automated one-step manufacturing
Ability to process reactive powders
Very good levels of powder recyclability
8/12/2019 Metal Additive Manufacturing of High-pressure Micro-pumps
10/16
Micropump assembly using SLM
Leak tight laser welding as sealingprocess
Small heat-affected zones and high
heating and cooling rates
Process is automated with roboticmachinery
Have beendesigned and tested
for cooling
8/12/2019 Metal Additive Manufacturing of High-pressure Micro-pumps
11/16
Why SLM and SLS are preferred?
ability to create almost any shape or
geometric feature automatically fused to create the final
shape
high accuracy , detail resolution, good
surface quality and excellent mechanical
properties
Complex geometries and assemblies
reduce materials and waste
Less power required
Quick process
8/12/2019 Metal Additive Manufacturing of High-pressure Micro-pumps
12/16
Additive manufactured micro pumps- Current appl
Low-temperature space applications
Dispensing therapeutic agents
Cooling of microelectronic devices
Micro propulsion
Microfluidic transport requirements
Lubrication systems
8/12/2019 Metal Additive Manufacturing of High-pressure Micro-pumps
13/16
Disadvantages of SLS and SLM
Residual thermal stresses occur resultingin small deformation
dimensional error increases for values
lower than 0.4 mm
porosity cannot be completelyeliminated
Sticking of particles
8/12/2019 Metal Additive Manufacturing of High-pressure Micro-pumps
14/16
Future applications
The study focusing on the development of amicro-pump to operate a two-phase cooling loop
mainly for small satellite applications
considered as high potential for future space
applications and other harsh environments
8/12/2019 Metal Additive Manufacturing of High-pressure Micro-pumps
15/16
References
1) Wessel W. Witsa,*, Sander J. Weitkampa, Johannes van Esb ,Metal
additive manufacturing of a high-pressure micro-pump ,Forty Sixth
CIRP Conference on Manufacturing Systems 2013
2) Farideh Abhari ,Haslina Jaafar and Nurul Amziah Md Yunus 2012*ReviewpaperA Comprehensive Study of Micropumps Technologies
3) Laser D. and Santiago, J., 2004. A review of micropumps, in Journal
of micromechanics and microengineering, pp. R35-R64.
4) Layerwise, 2012. Personal contact and company website,
http://www.layerwise.com, Leuven, Belgium.
5) Sabina L. Campanelli, Nicola Contuzzi,Andrea Angelastro and
Antonio D. Ludovico Capabilitiesand Performances of the SelectiveLaser Melting Process
6) Xin Zhang, Yi Zhao, Biao Li and Daryl Ludlow Journal on Pumping
capacity and reliability of cryogenic micro-pump for micro-satellite
applications
8/12/2019 Metal Additive Manufacturing of High-pressure Micro-pumps
16/16
Thank you
Top Related