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PROGRESS UPDATE WORK PACKAGE 1LAURA CORDOVA GONZALEZ
AGENDA
1. ON LOCATION
2. FAILURE BEHAVIOR OF PRINTED PARTS
AGENDA
1. ON LOCATION
2. FAILURE BEHAVIOR OF PRINTED PARTS
4
ON LOCATION (1/4)CHALLENGES
[email protected] 14/12/2016
Information was gathered from:
Additive Manufacturing literature review
Specialist interviews (Additive Industries, NLR, Sirris, University of Twente)
• Gas flow
• Material conditionEnvironment
• Personnel
• Material condition
• MachineOperation
Electrostatic behavior
Oxygen pick up
Moisture
Contamination
Powder reuse
5
ON LOCATION (2/4)IMPACT
[email protected] 14/12/2016
How raw materials condition is linked with the process and supply
chain:
Environment (moisture, contamination)
Storage conditions (time, containers, ambient)
Supply (frequency, supplier, transportation, quality)
Operation (powder reuse)
Cost (quality vs. price?)
Sustainability (energy & resources consumption)
Supply (frequency, quality)
[1] http://www.3dprinterworld.com/
Rapid Prototyping labs in Afghanistan
and Fort Belvoir, USA [1]
14/12/[email protected] 6
ON LOCATION (3/4)RESULTS
0
0,5
1
1,5
2
2,5
3
3,5
4
A S R E C E I V E D D R Y
FL
OW
(g
/s)
HALL FLOWMETER ANALYSIS
Ti6Al4V Inconel 718 AlSi10Mg M2 M4
0,00%
0,02%
0,04%
0,06%
0,08%
0,10%
0,12%
0,14%
0,16%
AlSi10Mg Inconel 718 Ti64 Scalmalloy M2 M4
MO
ISTU
RE
(%)
MATERIALS
MOISTURE ANALYSIS
14/12/2016
[2] Aboulkhair, Nesma T. (2016) Additive manufacture of an aluminium alloy: processing, microstructure, and mechanical
properties. PhD thesis, University of Nottingham.
7
ON LOCATION (4/4)WRAP-UP
Various parameters have effect on
process and powder properties.
The aim of the research is to identify
the most relevant ones and quantify its
influence.
Next steps are identifying the effects in
AM builds and testing its influence on
the mechanical properties.
Evolution of pores with various scan speed [2]
AGENDA
1. ON LOCATION
2. FAILURE BEHAVIOR OF PRINTED PARTS
14/12/[email protected] 9
FAILURE BEHAVIOR PRINTED PARTS (1/3)FRAMEWORK
Raw materials Storing conditions
Re-use (sieving)
Quality assurance
Process and post-
process
Parameters
Gas flow
Powder spreading
Handling and treatments
Final properties
Quality
Failure mechanisms
Surface roughness
Repeatability
14/12/[email protected] 10
FAILURE BEHAVIOR PRINTED PARTS (2/3)DISCUSSION
• Top-down approach for
parts selection
• Narrow to few potential –
interesting cases
• Representative to SINTAS
project partners:
Failure
Material
Shape / Design
Case study
• Selection of spare parts to
print from a reduced group
• Adjust material, process
and parameters
• Understand and perform
quality testing depending
on:
Potential failures
Material properties
Part printed
14/12/[email protected] 11
FAILURE BEHAVIOR PRINTED PARTS (3/3)POSSIBILITIES
≠ Failures ≠ Techniques Repeatability
SLM
SLM
SLM
EBM
THANK YOU
12
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