Sheet Metal Forming

part properties, 265, 266(T)
process description, 259–261
backward flow forming, 260(F)
forward flow forming, 260(F)
process variations, 262
roller tools, 262–263, 265(F)
specialized tools, 262, 263(F)
split forming of flat disks, 264(F)
stress state, 260–261(F)
flower diagram, 217–218(F)
flywheel rotation, 42
force signatures, 301
formability
AHSS, 107, 108
aluminum alloys, 83
AZ31, 171
AZ31B, 86, 88(F)
EMF, 234, 235, 244
fracture, 3
high-velocity forming, 227
hole flanging, 37
hot stamping, 133, 134
lubrication, 312
magnesium alloys, 83, 89(F), 293
mechanical joining, 289, 290
mechanics of deformation, 91–92(F)
multipoint blank holder control, 166
online material property evaluation, 311
PAMSTAMP-2G, 56
QPF, 173
room/elevated temperatures, 90(F)

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Index / 349
SHF-P, 158
spinning, 257, 258
SPR, 293
stamping, 83–84
temperature, effect of, 114
tensile (uniaxial) test, 84
THF, 181–207(F,T)
TRIP steels, 113
TWIP steels, 113
warm deep drawing, 98, 102
warm forming process, 91, 92, 93
warm SHF-P, 171
forming coil, 237–238
forming limit curves (FLCs)
AHSS, 117–119
edge cracking, 38
stamping (AHSS), 117–119
forming limit diagram (FLD), 54
forming tests, 331–332(F)
forming velocity, 99, 128, 228(T)
fracture
blanking, 1
hemming, 41, 42(F)
ISF, 280
laser-assisted ISF, 285
SHF-P, 168
stretch bending, 33
stretch flanging, 38(F)
free bending. 
See
air bending
free bulging, 158, 203, 204(T)
fretting wear, 291
fretting wear phenomenon, 291
friction coefficient, 77, 136–138(F), 139(F), 173
friction zones, 193, 194(F)
G
galling
acoustic emission sensors, 307
AHSS, 119
aluminum alloys, 84
benchmark studies, 333, 334
DP 980, 122
DP 980-GI, 121
dry film lubricants, 120
effect of temperature, 113
factors affecting, 317–318(T)
forming tests, 332(F)
lubrication, 92, 215
magnesium alloys, 84
pin-on-disk test, 330
roll material selection, 220
strip reduction test, 331
TCT, 330
tool coatings, 121–122
tool materials, 121, 317–318
galling/wear tests
forming tests, 331–332
cup drawing test, 332(F)
drawbead simulator, 332(F)