www.cewac.be

The European Union and Wallonia invest in your future.

Walloon research centre for the study of

assembly technology and material testing

Service centre to the industry performing studies and applied research, founded in 1989.

Two main divisions :

Assembly & Material testing :

welding, brazing, mechanical joining and mixed joints (WPS, WPQR, WQ)

destructive and non-destructive testing (acc. ISO 17025)

Industrial Hydraulics and Hydromechanics

Target : mainly SME’s (comparable size and culture)

Multiple disciplines and flexibility : synergy between divisions

Support and management during all project phases

Feasibility studies, simulations, design, prototyping, pre-series …

Technical expertise

CEWAC asbl.

www.cewac.be

Assembly & Materials testing (in the field of material joining )

www.cewac.be

Welding, Brazing, Mechanical joining and mixed joints

Non-destructive testing, accreditation acc. ISO17025

(performed in our laboratory or on site).

Destructive testing, accreditation acc. ISO17025 (for most of our tests).

Welding procedure specification and qualification, welder qualification.

Design and calculation of welds, FE modelling (COSMOS)

Support concerning the choice of appropriate welding methods,

parameter optimization …

Technical support and follow-up on relevant standards

Training (in collaboration with Technifutur, CPE, Technofutur,… )

Assembly – available technology

Arc welding (SMAW, GTAW, GMAW, Plasma)

Micro-welding by arc (Micro-GTAW, Micro-plasma)

Laser welding (continuous YAG laser, pulsed YAG laser,

Fibre laser)

Hybrid laser-arc welding (YAG and GMAW)

Friction stir welding (conventional FSW and FSW by robot)

Friction welding

Electron beam welding (down to ultra-high vacuum)

Resistance welding (spot and seam)

Other joining methods (brazing, rivetting, clinching)

www.cewac.be

Assembly – our equipment

www.cewac.be

Laser welding machine :

200W Pulsed YAG Laser +

400W Continuous Fibre Laser

Electron beam welding : 6kW

Work piece max. 500x500x500mm

FSW by robot Conventional FSW Rotational friction welding

Hybrid laser-arc welding :

3kW YAG laser + GMAW

Resistance

seam welding

and

spot welding

Assembly – some examples

www.cewac.be

Longitudinal FSW of tube (2mm)

FSW welding of sheet material

(0,5mm) brass-cupper

Electron beam

welding of

Tantalum tube

(0,5mm)

Laser welding of thin walled tubes (0,2mm)

on a thick base plate )

Laser welding

of perforated

Platinum plate

(0,5mm)

GTAW :

joining

profiles

(0,5mm)

Resistance welding : grid

(0,1mm) into sheet material

FSW welding : 25 mm of

aluminium in a single pass

Spot welding :

cupper strands

on stainless

steel

GTAW :

0,1mm

pellet on

thick

material

Non-destructive testing

www.cewac.be

Non-destructive testing, accreditation acc. ISO17025 (Testing performed in our lab or on site).

Penetrant testing (PT)

Magnetic testing (MT)

Radiographic testing (RT) : analogue or digital, micro-source,

radioscopy and 3D tomography

Ultrasonic testing (UT)

Visual inspection – Endoscopy (VT)

Thermographic inspection (IRT)

Helium leak testing (HLT)

Non-destructive testing

www.cewac.be

Fluorescent PT installation

Colour contrast PT :

Cast aluminium bracket

Photo 1: before test

Photo 2: after applying the penetrant

Photo 3: indications after development

Radiography and tomography installation

Tomographic analyses

Micro-source RT of a

valve system

On site MT 12,8°C

>176,6°C

IR thermography :

Analysis of hot spots

Helium leak

testing

Ultrasound

testing

Destructive testing www.cewac.be

Destructive testing, accredited acc. ISO17025 (most of our tests).

Visual inspection and fractography

Macro- and Micrography

(grain count, weld …)

Hardness and µ-hardness testing

Tensile, compression, fatigue and

bending testing

Impact testing

Alloy analysis (composition)

Hydraulics and Hydromechanics (technology concerning fluid mechanics)

www.cewac.be

Study and design of hydromechanical applications : theoretical modelling and simulation

(analytical, FEA) and experimental set-up

Development of technological demonstration models and industrial prototypes

Design and production of client specific test benches and associated procedures

Production of pre-series concerning components or devices developed at CEWAC

Technological support and follow-up on relevant standards, audits

Environmental testing, quality control and characterisation (ISO 17025 accredited) :

Measurements and characterisation of pneumatic and hydraulic elements:

Pressure : from vacuum to high pressure.

Temperature : from cryogenics to high temperature (fire testing).

Various types of fluids : water, oil, air, N2, CO2, helium.

Flow rate : from µ-flow to 30 litres/sec.

Characterisation of separators for water - hydrocarbon/grease.

Flow visualisation (high-speed camera (800 images/s), IR thermal camera).

Hydraulics and hydromechanics - Testing

www.cewac.be

Fire testing of valves

Low temperature (0 to -150°C) or

cryogenic (down to -196°C) testing

Pressure testing (up to 1600bar)

Characterisation and testing of

water-hydrocarbon separators

Filter efficiency characterisation

Vacuum testing

Hydraulics and Hydromechanics - Studies

www.cewac.be

Characterisation of the flow rate

coefficient (Cv) of a regulating valve

Study, design, characterisation and prototyping

of a purification micro station type 6 EH

Study and hydromechanical characterisation

of wastewater treatment canalisations. Development of medical

equipment (infusion set)

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27-11-06 22-12-06 16-01-07 10-02-07 07-03-07 01-04-07 26-04-07 21-05-07 15-06-07 10-07-07 04-08-07 29-08-07 23-09-07 18-10-07

Prélèvement 1

Prélèvement 2

Prélèvement 3

DBO tolérée

LABO (cuve 1)

LABO (cuve 2)

LABO (cuve 3)

Co-financed projects at Cewac

www.cewac.be

Technological support for the industry in general

SOUDTECH (welding technology in assembly and repair)

GESTECO (problem-solving in hydraulics and hydromechanics)

Collective research projects

ARCLASER (hybrid laser-arc welding) and SOUDIMMA (magnetic pulse welding)

STEELFSW (FSW of steel and materials alike) : start 2011

PME-TANE (development of a methanisation unit) : start 2011

EFRO

MICROSOUD + INTROTECH PME (development of a micro welding users platform

and associated material testing + creation of industrial awareness)

NDT Laser (development of an in-process control for laser welding)

MEDIPUMP (development of medical equipment)

Cornet

INCOPI (production of inside coated pipes with high fouling resistance) : start 2012

Projects concerning Friction Stir Welding

Transtir II (Industrial introduction of FSW and µ-FSW + production of technological

demonstrators)

STIRHETAL (welding of dissimilar aluminium joints)

www.cewac.be

Cewac ASBL

Liège Science Park

Rue Bois St-Jean, 8

B-4102 OUGREE

Tel: 04/256.94.00

Fax: 04/264.60.34

www.cewac.be info@cewac.be

- Thank you for your attention -