161130 progress update wp1 (laura cordova gonzalez)

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

l.cordovagonzalez@utwente.nl 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

l.cordovagonzalez@utwente.nl 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]

14/12/2016l.cordovagonzalez@utwente.nl 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

14/12/2016l.cordovagonzalez@utwente.nl 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

14/12/2016l.cordovagonzalez@utwente.nl 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

14/12/2016l.cordovagonzalez@utwente.nl 11

FAILURE BEHAVIOR PRINTED PARTS (3/3)POSSIBILITIES

≠ Failures ≠ Techniques Repeatability

SLM

SLM

SLM

EBM

THANK YOU

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