Page 627 - Automotive Engineering Powertrain Chassis System and Vehicle Body

Cost
Environmental ))
‘friendliness’
chain’)
manufacturing )
(‘process
of
Ease
D 1 ¼ steel Forming (ELV) Disposal emissions þ CO 2 Paint Joining Forming g/cc 1.0 9 7 9 9 8 7.87 1.1 8.5 8 9 8 6 7.87 1.5 8.5 8 9 7 4 7.87 4.0 9 9 8 5 6 2.69 5.0 9 9 8 5 6 2.69 4.0 6 9.5 7 4 4 1.75 60.0 6 9 7 5 6 4.50 8.0 5 8 8 7 8 1.95 50.0þ 5 9 8 7 8 1.60–1.90 required.
materials GPa development
body E.Mod 210 210 210 69 69 45 110 40 120–250 extensive
automotive min% <2.0 <2.0 [ 1

of A 80 40 26 5 23 24 7 5 problems. difficulty,
selection MPa min min 1350–1550 min min min min 400–1800 1200–2250 without

realistic parameters UTS 270 400 240 250 240 924 production few [ 10

for MPa min min 1050–1250 min min min min [ met: be
ratings Design YS 140 300 110 120 160 880 950 1100 10 can

and Z þ process, to legislation

criteria steel Z þ H300YD composite difficult

Main grade DCO4 10292 martensitic 5xxx 6xxx sheet sheet [ 1 prevailing

18.2-3 Forming 10130 EN – Aluminium Aluminium Magnesium Titanium fibre range on which with

Table Material Criteria 1. EN HSS 2. UHSS 3. 4. 5. 6. 7. GRP 8. Carbon 9. * Based ** Ease