Sheet Metal Forming

Index / 359
pot pressure, 160
presses, 162–164(F)
room-temperature sheet hydroforming, 169(F)
schematic, 159(F)
strain hardening, 159
sheet hydroforming with punch (SHF-P)
advantages of, 158–160
blank holder, 165
bulge formation, 168(F)
bulging, 167
case study, 60–61(F,T), 62(F)
counterpunches, 167(F)
defects, 167
description of, 158
economical, 160
elastic blank holder, 166–167(F)
fracture, 168(F)
leaking, 168–169(F)
limitations, 160
overview, 157
presses, 162, 163(F)
process, 159(F)
process economics (
see
sheet hydroforming process 
economics)
process limits, 167
process window, 167–169(F)
punch, 165
regular stamping operations, combining, 160–161(F)
room-temperature sheet hydroforming, 169–170(F)
sheet metal spinning. 
See
spinning
SHEETCOST
calculator inputs
general inputs, 174
process-related inputs, 174
case study I: rear door panel, 175–176(F)
case study II: fifteen body panel parts, 176–177(F)
outputs from calculator, 175(F)
overview, 173–174
shell elements, 69
shell theory, 190
shock wave
contact of the punch, 1
electrohydraulic forming, 228, 230–231, 232(F)
explosive forming, 228, 229
focusing, 323(F)
high-velocity forming, 228
high-velocity hydroforming, 228
punch rigidity during impact, 8
shock wave hardening, 229
shotblasting, 153–154
Siebenwurst GmbH, 173
Siempelkamp Pressen Systeme, 162
SIMEX2, 52(T)
simplified bending theory, 20
simplified modeling approach (SMA), 278
single-point incremental forming (SPIF), 274(F), 276, 277
skin effect, 234–235, 238, 239
slab, 84, 85(F)
Sleipner, 333
slide displacement, 301
slider-on-sheet test, 330(F)
slug ejection, 304, 305, 306(F), 307
slugs, 6–7, 8
snap-through forces, 10–11(F), 125
soldering, 215
sound waves, 307
spark gap, 228, 230, 231(F)
SPHC steel, 138(F)
spinning. 
See also
flow forming; shear spinning
accuracy, 259(T)
applications, 258, 259(F)
characterization of, 250(F)
DIN 8584, 249
failure modes, 250, 252–253(F)
radial cracks, 252(F), 253
tangential cracks, 252–253(F)
wrinkling, 252(F)
machine setup for spinning, 250(F)
machines, 254–256
hydraulic or electric drives, 256(F)
spinning by hand, 256(F)
teach-in, 257(F)
overview, 249