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Hans Cools Machining and cleanliness 09 February 2018
Machining and cleanlinessCleanliness in the supply chain
Cleaning for Cleanliness Grade 2
Hans Cools Machining and cleanliness 09 February 2018
Innovar Cleaning Control
Since 2011 a cleaning partner
12 FTE
400 m2 cleanroom
Manual cleaningAutomatic cleaning (2 systems)Bake out (2 systems)RGA (3 systems)Clean assembly
Hans Cools Machining and cleanliness 09 February 2018
Machining and cleanliness
Cleanliness in the supply chain:
Design (geometrical shape)MaterializationSurface treatmentProduction of partsCleaning of partsQualification of partsProduction of (sub)modules (assembly)Cleaning of (sub)modulesQualification of (sub)modulesClean packTransport Installation of (sub)modules
Hans Cools Machining and cleanliness 09 February 2018
Machining and cleanliness
Cleanliness in the supply chain:
Design (geometrical shape)MaterializationSurface treatmentProduction of partsCleaning of partsQualification of partsProduction of (sub)modules (assembly)Cleaning of (sub)modulesQualification of (sub)modulesClean packTransport Installation of (sub)modules
Positive vs negative shapesBlind holesThreadsCapillary effectWelding …
Hans Cools Machining and cleanliness 09 February 2018
Machining and cleanliness
Cleanliness in the supply chain:
Design (geometrical shape)MaterializationSurface treatmentProduction of partsCleaning of partsQualification of partsProduction of (sub)modules (assembly)Cleaning of (sub)modulesQualification of (sub)modulesClean packTransport Installation of (sub)modules
SSTALU 5083 (≈ 93% Alu) - 6082 (≈ 97% Alu)RSA (60% Alu / 40% silicium)…
Hans Cools Machining and cleanliness 09 February 2018
Machining and cleanliness
Cleanliness in the supply chain:
Design (geometrical shape)MaterializationSurface treatmentProduction of partsCleaning of partsQualification of partsProduction of (sub)modules (assembly)Cleaning of (sub)modulesQualification of (sub)modulesClean packTransport Installation of (sub)modules
Pickled and PassivatedElectro polishedNi platedNo surface treatment (Alu 5083)…
Hans Cools Machining and cleanliness 09 February 2018
Machining and cleanliness
Cleanliness in the supply chain:
Design (geometrical shape)MaterializationSurface treatmentProduction of partsCleaning of partsQualification of partsProduction of (sub)modules (assembly)Cleaning of (sub)modulesQualification of (sub)modulesClean packTransport Installation of (sub)modules
Other presentations …- Emulsion type- Concentration- Cutting tools
- Cross contamination- Use of gloves
Hans Cools Machining and cleanliness 09 February 2018
Machining and cleanliness
Cleanliness in the supply chain:
Design (geometrical shape)MaterializationSurface treatmentProduction of partsCleaning of partsQualification of partsProduction of (sub)modules (assembly)Cleaning of (sub)modulesQualification of (sub)modulesClean packTransport Installation of (sub)modules
More details later…
Hans Cools Machining and cleanliness 09 February 2018
Machining and cleanliness
Cleanliness in the supply chain:
Design (geometrical shape)MaterializationSurface treatmentProduction of partsCleaning of partsQualification of partsProduction of (sub)modules (assembly)Cleaning of (sub)modulesQualification of (sub)modulesClean packTransport Installation of (sub)modules
Keep clean parts cleanUse clean tools / work area’sIsolate clean (assembled) parts…
Hans Cools Machining and cleanliness 09 February 2018
Machining and cleanliness
Cleanliness in the supply chain:
Design (geometrical shape)MaterializationSurface treatmentProduction of partsCleaning of partsQualification of partsProduction of (sub)modules (assembly)Cleaning of (sub)modulesQualification of (sub)modulesClean packTransport Installation of (sub)modules
More details later…
Hans Cools Machining and cleanliness 09 February 2018
Machining and cleanliness
Cleanliness in the supply chain:
Design (geometrical shape)MaterializationSurface treatmentProduction of partsCleaning of partsQualification of partsProduction of (sub)modules (assembly)Cleaning of (sub)modulesQualification of (sub)modulesClean packTransport Installation of (sub)modules
Keep clean parts cleanUse cleanroom compatible packaging materials…
Hans Cools Machining and cleanliness 09 February 2018
Machining and cleanliness
Cleanliness in the supply chain:
Design (geometrical shape)MaterializationSurface treatmentProduction of partsCleaning of partsQualification of partsProduction of (sub)modules (assembly)Cleaning of (sub)modulesQualification of (sub)modulesClean packTransport Installation of (sub)modules
All mentioned aspects affect the final cleanliness
Make well thought choices!!
Hans Cools Machining and cleanliness 09 February 2018
Machining and cleanliness
Cleaning for cleanliness grade 2
Hans Cools Machining and cleanliness 09 February 2018
Machining and cleanliness
Cleaning for cleanliness grade 2
Cleaning in between production / machining steps:
Not sure how to clean parts, then please don’t !
- Know what you are doing- Water (keep clean)- Soap (match with cutting oil)- Blow off gun (oil / rusty water)- IPA stains
Hans Cools Machining and cleanliness 09 February 2018
Machining and cleanliness
Cleaning for cleanliness grade 2
Basics:
- Know the required cleanliness grade- Know the shape and the material- Inspect part cleanliness before cleaning
>> choose the correct cleaning method
- Manual cleaning- Ultrasonic cleaning- Spray cleaning- Water based cleaning- Solvent cleaning
Hans Cools Machining and cleanliness 09 February 2018
Machining and cleanliness
Cleaning for cleanliness grade 2
Some examples:
Inspect part cleanliness before cleaning
>> Clean particles!
Hans Cools Machining and cleanliness 09 February 2018
Machining and cleanliness
Cleaning for cleanliness grade 2
Some examples:
ALU 5083
Very sensitive for contamination.Unpredictable in RGA results.Solution: Long bake-outs
RSA-443 AE (60% alu – 40% Si)
from manual mechanical cleaningto 2x ultrasonic cleaning(no bake out)
Hans Cools Machining and cleanliness 09 February 2018
Machining and cleanliness
Cleaning for cleanliness grade 2
Some examples:
Find the right combo
>> better cleaning>> faster cleaning
Bake-out can be reduced
Hans Cools Machining and cleanliness 09 February 2018
Machining and cleanliness
Cleaning for cleanliness grade 2
Current supply chain situation:
Lots of work to be done(Cleaning) / Bake-out / RGA = critical note
Reduce bake-out by smarter cleaningReduce RGA (on single parts) by process control
Work togetherCreate a process together. Validate. SPC.(design > production > cleaning > assembly > Qualification)
Hans Cools Machining and cleanliness 09 February 2018
Machining and cleanliness
A clean supply chain is more than just having the right equipment
Work together
(24h) production Smarter cleaning
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