3D PRINTING

– SCREW EXTRUSION ADDITIVE MANUFACTURING –

THE REAL 3D PRODUCTION

The Screw Extrusion Additive Manufacturing (SEAM) technology is a 3D print extrusion unit developed by Fraunhofer IWU for the production of large components. This is a screw extruder that is capable of producing standard granulates with carbon fibres. The aim is to enable the production of large industrial components.

The combination of the nozzle and our parallel kinematics provides new production approaches for additive manufacturing. The highly dynamic production and the possibility of combining additive and subtractive (hybrid) processing make us unique on the market. Thus, components can be manufactured in a single Metrom machine additively with the SEAM process and subtractively by milling.

SEAM   vs   FDM

MASS FLOW [g/h]

SPEED [mm/s]

COSTS POLYMER (PA6/CF) [€/kg]

SPECIAL TECHNICAL FEATURES

PROCESS

Production time reduction of 70%

high plasticising capacity up to 7 kg/h

Printing speed up to 600mm/s (with static table)

Overhangs without support structure up to 65° 

MATERIALS

Cost savings of up to 95%

Use of standard granules 

thermoplastics with fibre reinforcement can be processed 

thermoplastic elastomer TPE can be processed  

PARTS

high mechanical properties 

Vacuum and liquid tight 

Surface quality as with FLM process 

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