NAGSIM.2D allows the user to
model the part forming operation in a computer before running it
in the machine. NAGSIM.2D provides information to:
- Reduce die trials and costly mistakes
- Improve tool life
- Predict defects
- Optimize preform shape
- Reduce scrap
- Determine mechanical properties of formed
part
- Determine influence of lubricants
- Shorten print-to-part time
Overview
NAGSIM.2D is a finite element software program for the computer simulation
of two-dimensional metal forming processes. It can simulate large
plastic deformation of the part as well as the elastic deformation
of the tools. It complements 'NAGFORM', a knowledge-based program
to create alternative forming sequences to form a part. NAGSIM.2D
and NAGFORM together present a breakthrough in the development and
optimization of forming sequence for a part.
A Complete and Easy-to-Use
Solution
NAGSIM.2D provides a complete and easy-to-use solution from creating
a model of the forming operation to post-processing of simulation
results. NAGSIM.2D's graphical user interface is tailored specially
for simulating metal forming operations. It is extremely user-friendly
and intuitive to use.
Efficient and Robust Solver
NAGSIM.2D uses an incremental finite element analysis solver that
is specially suited to metal forming operations with large plastic
deformation. Two types of problems can be analyzed:
_____1) Plane Strain - representing deformation
of long parts
_____2) Axisymmetric - representing deformation
of round parts
Automatic Meshing and
Remeshing
NAGSIM.2D incorporates an automatic element mesher. After the deformation
process starts, the program automatically remeshes the part if the
old mesh gets excessively distorted or if it is desired to mesh certain
areas with finer mesh.
Cold, Warm Forging and
Isothermal Hot forging
NAGSIM.2D does not include any thermal analysis. For Hot Forging Applications,
please refer to NAGSIMGEN.2D or
NAGSIM.3D.
NAGSIM.2D can be applied to cold
forming at ambient temperatures where metal's flow stress is primarily
strain dependent. NAGSIM.2D can also be used to analyze warm forging
and hot forging provided the process is considered to occur under
isothermal conditions and temperature change can be neglected.
Results and Information
NAGSIM.2D provides a complete insight into the forming process. The
results include: Material flow, stress distribution, strain distribution,
formation of laps, force distribution, tool stresses and contact between
the part and the tools. Animation presents a clear visual of the forming
operation.
Link with NAGFORM
NAGFORM and NAGSIM.2D work together to provide the shortest route
to develop forming processes. Sequence designs created in NAGFORM
can be transferred effortlessly to NAGSIM.2D. NAGFORM creates 'Generic'
tooling for a sequence and uses it to prepare an analysis file automatically.
This analysis file is used by NAGSIM.2D to preform metal flow simulation.
NAGSIM.2D
- Simulations
1. Cold Forging of a Panhead Screw
- 2 Operations
_____Operation
1 _______Operation
2
2. Hot Isothermal Forging of a
Wheel - 2 Operations
_____Operation
1_________Operation
2
