JEC COMPOSITES MAGAZINE - Issue #110 - January/February 2017 - 30

AUTOMOTlVE
cycle time

lndustrial laser processing
of fibre-reinforced plastics

DIPL.-WIRT.-ING. CHRISTOPH ENGELMANN
Teamleiter Kunststoffbearbeitung
Team leader Polymer Processing
DR.-ING. FRANK SCHNEIDER
Scientific Research Associate
Fraunhofer Institute for Laser
Technology ILT

Composite materials such as CFRP and GFRP are taking the world of industrial
series production by storm. These materials are considered difficult to work
with, but modern lasers make it possible to achieve short cycle times with
consistent quality. The Fraunhofer Institute for Laser Technology (ILT) has developed an entire range of laser-based technologies for processing composite
materials.

omposite materials are known in
the automotive and aviation sectors for their high strength and
low weight, but a number of other industries are also beginning to use them
and the demand for materials along
with processing methods is growing accordingly.

nents: high-strength, temperature-resistant carbon fibres, and a soft plastic matrix. The thicker the material, the harder
it is to achieve an undamaged cutting
edge. A laser beam is the ideal wear-free
tool in such scenarios. The laser passes
several times over the cutting contour
at high speed, thus minimizing material damage. This specialized technology
was developed as part of the EU-funded
HyBriLight project for industries such as
the aviation sector.

Cutting CFRP components
up to 10 mm in thickness
Carbon fibre-reinforced plastics are
difficult to process because they are
composed of two very different compo-

Adhesive-free joining of plastic and
metal parts by form closure
The need to reliably and permanently
bond dissimilar materials such as plastics
and metals is a persistent problem, par-

C

Fig. 1: Clean-cut edges in
8 mm-thick CFRP parts
are feasible thanks to a
high-tech laser process
©
Photo Fraunhofer ILT,
Aachen

Fig. 2: A car door with a
FRP reinforcing brace
is used to demonstrate
laser-assisted joining
of plastic-metal hybrid
compounds
©
Photo Fraunhofer ILT,
Aachen

30

jec composites magazine / No110 January - February 2017

ticularly in the automotive industry.
Here, too, the experts at Fraunhofer
ILT in Aachen have come up with a
solution that is suitable for industrial
applications. In a two-step process, the
metal surface is first structured with
the laser. Then, the plastic is heated
using the laser or an induction heating
device and bonded with the metal part.
Unlike adhesive bonding, the process does not require any additives
or additional intervals for hardening
or surface cleaning. When preparing
the metal side, the microstructure can
even be adapted to the workpiece's
subsequent force flows, meaning the
metal components can be made as thin
and lightweight as possible.



Table of Contents for the Digital Edition of JEC COMPOSITES MAGAZINE - Issue #110 - January/February 2017

Cover
Edito
Opinion: Mobility
Contents
NEWS
In brief
Startup competition
Construction & public transport
Investment
Agenda
BUSINESS
Trend
Startup booster
China
MANUFACTURING
RTM
WPC
Sandwich
Feature Automotive - El dorado, or a lure
3D printing
Cycle time
Raw materials
Reinforcements
Compression moulding
Compression moulding
Lightweighting
Interior part
SOLUTIONS
Marine
Motorcycle
Medical
In the world
TECHNOLOGY
OPLC
Draping
Damping
Index
Advertisers
JEC COMPOSITES MAGAZINE - Issue #110 - January/February 2017 - 60
JEC COMPOSITES MAGAZINE - Issue #110 - January/February 2017 - Cover
JEC COMPOSITES MAGAZINE - Issue #110 - January/February 2017 - 2
JEC COMPOSITES MAGAZINE - Issue #110 - January/February 2017 - Edito
JEC COMPOSITES MAGAZINE - Issue #110 - January/February 2017 - Opinion: Mobility
JEC COMPOSITES MAGAZINE - Issue #110 - January/February 2017 - 5
JEC COMPOSITES MAGAZINE - Issue #110 - January/February 2017 - Contents
JEC COMPOSITES MAGAZINE - Issue #110 - January/February 2017 - 7
JEC COMPOSITES MAGAZINE - Issue #110 - January/February 2017 - In brief
JEC COMPOSITES MAGAZINE - Issue #110 - January/February 2017 - 9
JEC COMPOSITES MAGAZINE - Issue #110 - January/February 2017 - Startup competition
JEC COMPOSITES MAGAZINE - Issue #110 - January/February 2017 - 11
JEC COMPOSITES MAGAZINE - Issue #110 - January/February 2017 - Construction & public transport
JEC COMPOSITES MAGAZINE - Issue #110 - January/February 2017 - 13
JEC COMPOSITES MAGAZINE - Issue #110 - January/February 2017 - Investment
JEC COMPOSITES MAGAZINE - Issue #110 - January/February 2017 - 15
JEC COMPOSITES MAGAZINE - Issue #110 - January/February 2017 - Agenda
JEC COMPOSITES MAGAZINE - Issue #110 - January/February 2017 - 17
JEC COMPOSITES MAGAZINE - Issue #110 - January/February 2017 - Trend
JEC COMPOSITES MAGAZINE - Issue #110 - January/February 2017 - 19
JEC COMPOSITES MAGAZINE - Issue #110 - January/February 2017 - Startup booster
JEC COMPOSITES MAGAZINE - Issue #110 - January/February 2017 - China
JEC COMPOSITES MAGAZINE - Issue #110 - January/February 2017 - 22
JEC COMPOSITES MAGAZINE - Issue #110 - January/February 2017 - RTM
JEC COMPOSITES MAGAZINE - Issue #110 - January/February 2017 - 24
JEC COMPOSITES MAGAZINE - Issue #110 - January/February 2017 - WPC
JEC COMPOSITES MAGAZINE - Issue #110 - January/February 2017 - Sandwich
JEC COMPOSITES MAGAZINE - Issue #110 - January/February 2017 - 27
JEC COMPOSITES MAGAZINE - Issue #110 - January/February 2017 - 3D printing
JEC COMPOSITES MAGAZINE - Issue #110 - January/February 2017 - 29
JEC COMPOSITES MAGAZINE - Issue #110 - January/February 2017 - Cycle time
JEC COMPOSITES MAGAZINE - Issue #110 - January/February 2017 - 31
JEC COMPOSITES MAGAZINE - Issue #110 - January/February 2017 - Raw materials
JEC COMPOSITES MAGAZINE - Issue #110 - January/February 2017 - 33
JEC COMPOSITES MAGAZINE - Issue #110 - January/February 2017 - 34
JEC COMPOSITES MAGAZINE - Issue #110 - January/February 2017 - 35
JEC COMPOSITES MAGAZINE - Issue #110 - January/February 2017 - Reinforcements
JEC COMPOSITES MAGAZINE - Issue #110 - January/February 2017 - 37
JEC COMPOSITES MAGAZINE - Issue #110 - January/February 2017 - Compression moulding
JEC COMPOSITES MAGAZINE - Issue #110 - January/February 2017 - Compression moulding
JEC COMPOSITES MAGAZINE - Issue #110 - January/February 2017 - Lightweighting
JEC COMPOSITES MAGAZINE - Issue #110 - January/February 2017 - 41
JEC COMPOSITES MAGAZINE - Issue #110 - January/February 2017 - Interior part
JEC COMPOSITES MAGAZINE - Issue #110 - January/February 2017 - Marine
JEC COMPOSITES MAGAZINE - Issue #110 - January/February 2017 - 44
JEC COMPOSITES MAGAZINE - Issue #110 - January/February 2017 - Motorcycle
JEC COMPOSITES MAGAZINE - Issue #110 - January/February 2017 - Medical
JEC COMPOSITES MAGAZINE - Issue #110 - January/February 2017 - In the world
JEC COMPOSITES MAGAZINE - Issue #110 - January/February 2017 - OPLC
JEC COMPOSITES MAGAZINE - Issue #110 - January/February 2017 - 49
JEC COMPOSITES MAGAZINE - Issue #110 - January/February 2017 - 50
JEC COMPOSITES MAGAZINE - Issue #110 - January/February 2017 - 51
JEC COMPOSITES MAGAZINE - Issue #110 - January/February 2017 - 52
JEC COMPOSITES MAGAZINE - Issue #110 - January/February 2017 - 53
JEC COMPOSITES MAGAZINE - Issue #110 - January/February 2017 - Draping
JEC COMPOSITES MAGAZINE - Issue #110 - January/February 2017 - 55
JEC COMPOSITES MAGAZINE - Issue #110 - January/February 2017 - Damping
JEC COMPOSITES MAGAZINE - Issue #110 - January/February 2017 - 57
JEC COMPOSITES MAGAZINE - Issue #110 - January/February 2017 - Advertisers
JEC COMPOSITES MAGAZINE - Issue #110 - January/February 2017 - 59
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