JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - 52

multimaterial

The challenges of multimaterial assembly

"The right material in the right place" is what
must be the focus in order to meet all the
requirements for quality, cost, lead time and
performance for complex mechanical systems.
This is true in all industrial segments.

By

Fig.1: Choice of Assembly

Pierre Chalandon
Assembly Engineering Unit
Cetim

D

riven by the redesign of products to reduce weight and/or
improve performance, the constant development of new
materials and complex mechanical systems usually goes hand
in hand with a review of the choice of materials, processes and
assembly technologies, in particular for multimaterial mechanical
systems.
Some, but not all of the objectives are:
- weight reduction in the automotive industry using composite
materials to meet regulatory requirements on CO2 emissions;
- weight and cost reduction along with higher output in the aviation
industry;
- performance and cost considerations in the mechanical industry.

Choosing the assembly technology
Upstream, the choice of these technologies must be based on a
structured methodological approach that addresses both technical
and economic aspects (fig 1).
The main factors to consider in choosing the assembly technology:
- Main functions: Structural or non-structural assembly; Assembly
description (shape, dimensions); Materials to be joined and surface
treatments.
- Other functions: Disassembly capability, assembly accuracy, electrically conductive assembly, impact and vibration damping.

52 jec composites magazine / No93 December 2014

- Stresses: Pure - shear, tensile, bending, torsional, etc. - or combined; Static, dynamic (crash type), fatigue; Temperatures and
environment.
- Cost: Product, including preparation; Process: investments, cycle
times, automation; Inspections: in-process and/or assembled parts
- Constraints: Certification, NDT, health and safety, production
rates, etc.
- Other criteria: Technological maturity, R&D work required;
Versatility of the equipment being considered; "Market" differentiation contributed by the solution being considered, etc.

Expertise all along the value chain
It is clearly crucial to control:
- all input parameters required for the choice of type of assembly,
from materials and surfaces to characterization and inspections;
- the entire value chain, from innovation, dimensioning and characterization to processing and industrialization (fig 2).
The French Technical Centre for the Mechanical Industry (Cetim)
addresses all stages of the development cycle and all types of assembly techniques. Cetim has developed a choice-of-technology
methodology that is based on an in-house software programme
called ASTEK. It has also implemented a pivotal multimaterial
assembly project called PAMM (for "Projet Assemblages MultiMatériaux") to generate synergies and meet industrial requirements
over the short, medium and long term.

The PAMM multimaterial assembly project
In the competitive context, it is essential to address energy con-



JEC COMPOSITES MAGAZINE - Issue #93 - December 2014

Table of Contents for the Digital Edition of JEC COMPOSITES MAGAZINE - Issue #93 - December 2014

Cover
Edito
Point of view: growing perspectives
Contents
COMPANY & BUSINESS
In Brief
Reinforcement
Tool
Tanks
Agenda of Events
APPLICATIONS
Bridge
CFRP
MARKET
Fibre glass
SPECIAL JEC ASIA - MARINE
Education
Testimony
Car ferries
Biocomposites
Defense
Pilot boat
Speed boat
RESEARCH & DEVELOPMENT
WPC
Multimaterial
TECHNOLOGY & INNOVATIONS
Foam core
Liner
LFT
Index
In the world
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - Cover
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - 2
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - Edito
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - Point of view: growing perspectives
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - 5
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - Contents
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - 7
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - In Brief
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - Reinforcement
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - Tool
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - Tanks
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - Agenda of Events
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - 13
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - 14
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - Bridge
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - 16
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - CFRP
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - 18
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - Fibre glass
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - 20
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - 21
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - 22
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - 23
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - 24
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - 25
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - 26
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - 27
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - 28
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - 29
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - 30
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - 31
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - 32
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - 33
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - 34
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - 35
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - 36
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - 37
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - Education
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - Testimony
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - 40
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - 41
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - Car ferries
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - Biocomposites
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - Defense
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - Pilot boat
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - Speed boat
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - 47
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - 48
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - WPC
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - RESEARCH & DEVELOPMENT
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - 51
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - Multimaterial
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - 53
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - 54
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - 55
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - 56
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - 57
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - Foam core
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - 59
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - 60
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - 61
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - Liner
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - 63
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - LFT
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - Index
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - In the world
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - 67
JEC COMPOSITES MAGAZINE - Issue #93 - December 2014 - 68
https://www.nxtbook.fr/newpress/jeccomposites/jcm2211_148
https://www.nxtbook.fr/newpress/jeccomposites/jcm2209_147
https://www.nxtbook.fr/newpress/jeccomposites/jcm2206_146
https://www.nxtbook.fr/newpress/jeccomposites/jcm2204_145
https://www.nxtbook.fr/newpress/jeccomposites/jcm2201_144
https://www.nxtbook.fr/newpress/jeccomposites/jcm211_143
https://www.nxtbook.fr/newpress/jeccomposites/jcm2109_142
https://www.nxtbook.fr/newpress/jeccomposites/jcm2107_141
https://www.nxtbook.fr/newpress/jeccomposites/jcm2105_140
https://www.nxtbook.fr/newpress/jeccomposites/jcm2103_139
https://www.nxtbook.fr/newpress/jeccomposites/jcm-experts-digest-additive-manufacturing-2020
https://www.nxtbook.fr/newpress/jeccomposites/jcm2101_138
https://www.nxtbook.fr/newpress/jeccomposites/jcm2011_Special_Issue4
https://www.nxtbook.fr/newpress/jeccomposites/jcm2011_137
https://www.nxtbook.fr/newpress/jeccomposites/jcm2009_136
https://www.nxtbook.fr/newpress/jeccomposites/jcm2007_135
https://www.nxtbook.fr/newpress/jeccomposites/jcm_2020_Q1_Innovation_Report
https://www.nxtbook.fr/newpress/jeccomposites/jcm2005_Special_Issue3
https://www.nxtbook.fr/newpress/jeccomposites/jcm2005_134
https://www.nxtbook.fr/newpress/jeccomposites/jcm2003_133
https://www.nxtbook.fr/newpress/jeccomposites/jcm2001_132
https://www.nxtbook.fr/newpress/jeccomposites/jcm1911_Special_Issue2
https://www.nxtbook.fr/newpress/jeccomposites/jcm1911_131
https://www.nxtbook.fr/newpress/jeccomposites/jcm1909_130
https://www.nxtbook.fr/newpress/jeccomposites/jcm1907_129
https://www.nxtbook.fr/newpress/jeccomposites/jcm1905_128
https://www.nxtbook.fr/newpress/jeccomposites/jcm1903_Special_Issue1
https://www.nxtbook.fr/newpress/jeccomposites/jcm1903_127
https://www.nxtbook.fr/newpress/jeccomposites/jcm1901_126
https://www.nxtbook.fr/newpress/jeccomposites/jcm1811_125
https://www.nxtbook.fr/newpress/jeccomposites/jcm1810_124
https://www.nxtbook.fr/newpress/jeccomposites/jcm1808_123
https://www.nxtbook.fr/newpress/jeccomposites/jcm1807_122
https://www.nxtbook.fr/newpress/jeccomposites/jcm1805_121
https://www.nxtbook.fr/newpress/jeccomposites/jcm1804_120
https://www.nxtbook.fr/newpress/jeccomposites/jcm1803_119
https://www.nxtbook.fr/newpress/jeccomposites/jcm1802_119-Supplement_Innovation_Report
https://www.nxtbook.fr/newpress/jeccomposites/jcm1801_118
https://www.nxtbook.fr/newpress/jeccomposites/jcm1711_117
https://www.nxtbook.fr/newpress/jeccomposites/jcm1710_116
https://www.nxtbook.fr/newpress/jeccomposites/jcm1708_115
https://www.nxtbook.fr/newpress/jeccomposites/jcm1707_114
https://www.nxtbook.fr/newpress/jeccomposites/jcm1706_113
https://www.nxtbook.fr/newpress/jeccomposites/jcm1704_112
https://www.nxtbook.fr/newpress/jeccomposites/jcm1703_111
https://www.nxtbook.fr/newpress/jeccomposites/jcm1701_110
https://www.nxtbook.fr/newpress/jeccomposites/jcm1611_109
https://www.nxtbook.fr/newpress/jeccomposites/jcm1610_108
https://www.nxtbook.fr/newpress/jeccomposites/jcm1608_107
https://www.nxtbook.fr/newpress/jeccomposites/jcm1607_106
https://www.nxtbook.fr/newpress/jeccomposites/jcm1605_105
https://www.nxtbook.fr/newpress/jeccomposites/jcm1604_104
https://www.nxtbook.fr/newpress/jeccomposites/jcm1603_103
https://www.nxtbook.fr/newpress/jeccomposites/jcm1601_102
https://www.nxtbook.fr/newpress/jeccomposites/jcm1511_101
https://www.nxtbook.fr/newpress/jeccomposites/jcm1510_100
https://www.nxtbook.fr/newpress/jeccomposites/jcm1509_99
https://www.nxtbook.fr/newpress/jeccomposites/jcm1507_98
https://www.nxtbook.fr/newpress/jeccomposites/jcm1505_97
https://www.nxtbook.fr/newpress/jeccomposites/jcm1504_96
https://www.nxtbook.com/newpress/jeccomposites/jcm1503_95
https://www.nxtbook.com/newpress/jeccomposites/jcm1501_94
https://www.nxtbook.com/newpress/jeccomposites/jcm1412_93
https://www.nxtbook.com/newpress/jeccomposites/jcm1410_92
https://www.nxtbook.com/newpress/jeccomposites/jcm1409_91
https://www.nxtbook.com/newpress/jeccomposites/jcm1406_90
https://www.nxtbook.com/newpress/jeccomposites/jcm1405_89
https://www.nxtbook.com/newpress/jeccomposites/jcm1404_88
https://www.nxtbook.com/newpress/jeccomposites/jcm1403_87
https://www.nxtbook.com/newpress/jeccomposites/jcm1401_86
https://www.nxtbook.com/newpress/jeccomposites/jcm1311_85
https://www.nxtbook.com/newpress/jeccomposites/jcm1310_84
https://www.nxtbook.com/newpress/jeccomposites/jcm1308_83
https://www.nxtbook.com/newpress/jeccomposites/jcm1307_82
https://www.nxtbook.com/newpress/jeccomposites/jcm1305_81
https://www.nxtbook.com/newpress/jeccomposites/jcm1304_80
https://www.nxtbook.com/newpress/jeccomposites/jcm1303_79
https://www.nxtbook.com/newpress/jeccomposites/jcm1301_78
https://www.nxtbook.com/newpress/jeccomposites/jcm1212_77
https://www.nxtbook.com/newpress/jeccomposites/jcm1210_76
https://www.nxtbook.com/newpress/jeccomposites/jcm1208_75
https://www.nxtbook.com/newpress/jeccomposites/jcm1207_74
https://www.nxtbook.com/newpress/jeccomposites/jcm1206_73
https://www.nxtbook.com/newpress/jeccomposites/jcm1204_72
https://www.nxtbook.com/newpress/jeccomposites/jcm1203_71
https://www.nxtbook.com/newpress/jeccomposites/jcm1201_70
https://www.nxtbook.com/newpress/jeccomposites/jcm1111_69
https://www.nxtbook.com/newpress/jeccomposites/jcm1110_68
https://www.nxtbook.com/newpress/jeccomposites/jcm1108_67
https://www.nxtbook.com/newpress/jeccomposites/jcm1107_66
https://www.nxtbook.com/newpress/jeccomposites/jcm1105_65
https://www.nxtbook.com/newpress/jeccomposites/jcm1104_64
https://www.nxtbook.com/newpress/jeccomposites/jcm1103_63
https://www.nxtbook.com/newpress/jeccomposites/jcm1101_62
https://www.nxtbook.com/newpress/jeccomposites/jcm1011_61
https://www.nxtbook.com/newpress/jeccomposites/jcm1010_60
https://www.nxtbook.com/newpress/jeccomposites/jcm1009_59
https://www.nxtbook.com/newpress/jeccomposites/jcm1006_58
https://www.nxtbook.com/newpress/jeccomposites/jcm1005_57
https://www.nxtbook.com/newpress/jeccomposites/jcm1004_56
https://www.nxtbook.com/newpress/jeccomposites/jcm1003_55
https://www.nxtbook.com/newpress/jeccomposites/jcm1001_54
https://www.nxtbook.com/newpress/jeccomposites/jcm0911_53
https://www.nxtbook.com/newpress/jeccomposites/jcm0910_52
https://www.nxtbook.com/newpress/jeccomposites/jcm0909_51
https://www.nxtbook.com/newpress/jeccomposites/jcm0907-08_50
https://www.nxtbook.com/newpress/jeccomposites/jcm0906_49
https://www.nxtbook.com/newpress/jeccomposites/jcm0904_48
https://www.nxtbook.com/newpress/jeccomposites/jcm0903_47
https://www.nxtbook.com/newpress/jeccomposites/jcm0901_46
https://www.nxtbook.com/newpress/jeccomposites/jcm0811_45
https://www.nxtbook.com/newpress/jeccomposites/jcm0810_44
https://www.nxtbook.com/newpress/jeccomposites/jcm0809_43
https://www.nxtbook.com/newpress/jeccomposites/jcm0807_42
https://www.nxtbook.com/newpress/jeccomposites/jcm0806_41
https://www.nxtbook.com/newpress/jeccomposites/jcm0805_40
https://www.nxtbook.com/newpress/jeccomposites/jcm0803_39
https://www.nxtbook.com/newpress/jeccomposites/jcm0801_38
https://www.nxtbook.com/newpress/jeccomposites/jcm0712_37
https://www.nxtbook.com/newpress/jeccomposites/jcm0710_36
https://www.nxtbook.com/newpress/jeccomposites/jcm0709_35
https://www.nxtbook.com/newpress/jeccomposites/jcm0707_34
https://www.nxtbook.com/newpress/jeccomposites/jcm0706_33
https://www.nxtbookmedia.com