Abaqus explicit - tube drawing model

[mvp23]

Hello,

I'm trying to model a tube drawing process, where the draw plug moves through the inner surface the cylinder along its length, thereby expanding the tube. My model runs in abaqus explicit, but takes forever to converge. I'm surprised that an axisymmetric model takes this long. Below is the input file for the analysis. My end goal is to obtain the residual stresses post assembly.

Any help or suggestions would be appreciated.

Thanks

.......................
*Heading
** Job name: Job-3 Model name: Axisymmetric-Explicit-Copy
** Generated by: Abaqus/CAE 6.12-2
*Preprint, echo=NO, model=NO, history=NO, contact=NO
**
** PARTS
**
*Part, name=PLUG
*End Part
**
*Part, name=foil
*End Part
**
*Part, name="inner tube"
*End Part
**
*Part, name=outertube
*End Part
**
**
** ASSEMBLY
**
*Assembly, name=Assembly
**
*Instance, name="inner tube-1", part="inner tube"
*End Instance
**
*Instance, name=foil-1, part=foil
0., 0.03124152, 0.
*End Instance
**
*Instance, name=outertube-1, part=outertube
*End Instance
**
*Instance, name=PLUG-1, part=PLUG
0., -0.016096320000001, 0.
*Node
1, 0.00499999989, 0.0508939996, 0.
*Nset, nset=PLUG-1-RefPt_, internal
1,
*Surface, type=SEGMENTS, name=s_Surf-9
START, 0., 0.0508939999999856
LINE, 0.01, 0.0508939999999964
LINE, 0.01, 0.045814
LINE, 0.0132842, 0.016096
LINE, 0.0132842, 0.013048
LINE, 0.01, 0.0130479999676123
LINE, 0.01, 0.01016
LINE, 0.00762, 0.01016
LINE, 0.00762, 0.
LINE, 0., 0.
*Rigid Body, ref node=PLUG-1-RefPt_, analytical surface=s_Surf-9
*End Instance
**
*Nset, nset=Set-2, instance=PLUG-1
1,
*End Assembly
**
** MATERIALS
**
*Material, name=Al6061t6
*Conductivity
167.,
*Density
2700.,
*Elastic
6.89e+10, 0.33
*Expansion
0.000234,
*Material, name=uranium
*Conductivity
27.5,
*Density
19105.,
*Elastic
2.08e+11, 0.23
*Expansion
1.39e-05,
**
** INTERACTION PROPERTIES
**
*Surface Interaction, name=IntProp-1
*Friction
0.,
*Surface Behavior, no separation, pressure-overclosure=HARD
** ----------------------------------------------------------------
**
** STEP: Moveplug
**
*Step, name=Moveplug
*Dynamic, Explicit
, 1.
*Bulk Viscosity
0.06, 1.2
**
** BOUNDARY CONDITIONS
**
** Name: BC-1 Type: Symmetry/Antisymmetry/Encastre
*Boundary
Set-1, YSYMM
** Name: velocity Type: Velocity/Angular velocity
*Boundary, type=VELOCITY
Set-2, 1, 1
Set-2, 2, 2, 0.1524
Set-2, 6, 6
**
** INTERACTIONS
**
** Interaction: IT-OT-1
*Contact Pair, interaction=IntProp-1, mechanical constraint=PENALTY, cpset=IT-OT-1
m_Surf-5, s_Surf-5
** Interaction: inner-plug
*Contact Pair, interaction=IntProp-1, mechanical constraint=PENALTY, cpset=inner-plug
PLUG-1.s_Surf-9, m_Surf-9
** Interaction: innertube-foil
*Contact Pair, interaction=IntProp-1, mechanical constraint=PENALTY, cpset=innertube-foil
m_Surf-1, s_Surf-1
** Interaction: it-ot-2
*Contact Pair, interaction=IntProp-1, mechanical constraint=PENALTY, cpset=it-ot-2
m_Surf-7, s_Surf-7
** Interaction: outertube-foil
*Contact Pair, interaction=IntProp-1, mechanical constraint=PENALTY, cpset=outertube-foil
m_Surf-3, s_Surf-3
**
** OUTPUT REQUESTS
**
*Restart, write, number interval=1, time marks=NO
**
** FIELD OUTPUT: F-Output-1
**
*Output, field, variable=PRESELECT
**
** HISTORY OUTPUT: H-Output-1
**
*Output, history, variable=PRESELECT, frequency=1
*End Step