JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 67

Fig. 8: Specifications for the car hood

Fig. 6: Different FE-simulations

categories, such as labour, energy, material,
amortization, maintenance, and debt-service
costs.
To prove the cost efficiency of the new
concept in comparison to the state of the art,
the manufacturing costs of several demons-

Fig. 7: Stepwise differentiation of the processes

tration parts
(e.g. car hood
(Figure 8) or
seat shell) were
calculated for
the new concept
and competing
concepts, using
the process and
cost modelling
approach described above [3].
A car hood comprising tapes
joined with
the basic structure in an x-shape in order to
reach the required stiffness against vibration
and oscillation, as well as three metal angles
connected to the hood through tapes as
connection points to the vehicle frame, was
chosen. The study clearly reveals the possibility of enhancing cost efficiency by using the

new concept. Figure 9 shows the cost report
for an intended production of 60,000 parts
per year for the new concept as well as for a
concept utilizing only the thermoforming
process. Manufacturing the car hood with
the new concept makes it necessary to invest
in equipment for both the thermoforming
process and the tape placement process.
However, the impact of the possible simultaneous execution of the two independent
processes (thermoforming and tape
placement) during serial production leads to
a relatively low effective cycle time (results
from the number of parts actually finished in
a certain time span), compared to the pure
thermoforming concept which uses only
the thermal moulding tool. This also results
from the reduced thickness of the organic
sheet used for the new concepts, which
goes along with shorter heating and cooling
times. Therefore, the fixed costs for both
concepts are almost equal, since the value
of 60,000 parts per year can be produced
with only one set of equipment for the new
concept, while the pure thermoforming
concept requires two sets since its capacity
limit is lower. However, labour costs are not
affected by the possibilities of parallelization,
according to the assumptions that every process affords the supervision by an employee.
Thus, labour costs are 20% to 40% higher
for the new concept, since it comprises two
independent processes. The main costcausing element remains the material, as is
often the case when manufacturing FRPC
components. It could be shown that material
costs are almost cut by half through the

No81 May - June 2013

/ jec composites magazine 67



JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013

Table of Contents for the Digital Edition of JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013

Cover
Edito
Point of view GKN Aerospace: Making wing without winging it
Contents
Agenda of Events
COMPANY & BUSINESS In Brief
APPLICATIONS
Truck
Corrosion
Wind
MARKET
Carbon
Recycling
Human ressources
SPECIAL JEC ASIA 2013
Participating companies
Conferences
Awards
Life achievement
Country guest of honour: Japan
Environment
RESEARCH & DEVELOPMENT
3D fabric
Cost prediction
TECHNOLOGY & INNOVATIONS
Automotive
NDT
Carbon
Adhesives
Index
In the world
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - Cover
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 2
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - Edito
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - Point of view GKN Aerospace: Making wing without winging it
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 5
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - Contents
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 7
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 8
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 9
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - Agenda of Events
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 11
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - COMPANY & BUSINESS In Brief
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 13
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 14
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 15
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - Truck
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 17
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - Corrosion
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - Wind
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 20
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 21
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - Carbon
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 23
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 24
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 25
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - Recycling
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - Human ressources
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 28
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 29
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - Participating companies
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 31
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - Conferences
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 33
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - Awards
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 35
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 36
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 37
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 38
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - Life achievement
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - Country guest of honour: Japan
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 41
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 42
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 43
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 44
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 45
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 46
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 47
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 48
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 49
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 50
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 51
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - Environment
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 53
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 3D fabric
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 55
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 56
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 57
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 58
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 59
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - Cost prediction
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 61
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 62
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 63
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - Automotive
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 65
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 66
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 67
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 68
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 69
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - NDT
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 71
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 72
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 73
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 74
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 75
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 76
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - Carbon
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 78
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 79
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - Adhesives
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - Index
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - In the world
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 83
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 84
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