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