Fiber Placement Programming & Simulation

Posted By BryanJ On 7th November 2007 @ 16:47 In Content | Comments Disabled


Machine-independent off-line programming and simulation software for CNC composite fabrication machinery


Fiber Placement Programming
  • Read a lay-up tool surface and ply data
  • Fill plies with material
  • Post-process for the target machine
  • Save all settings and data for subsequent modification
 
VERICUT Fiber Placement Programming Process
1. Read CAD file
CATIA V5, SAT, others
Select model(s) in the file
2. Fill ply boundaries
Material and Path Settings
Select tow quantity, width, material thickness
Set minimum gap, maximum overlap
Set length of path lead-in and run-out
Create Path
Along angle or curve
Using multiple boundaries
Painting, rotating or spiral wrap
Add material thickness to base surfaces
3. Path linking and sequencing
Set retract distance and start location
Link manually or automatically
Choose direction, painting, spinning and head reversal options
4. Post-processing
Optional zone selection for output
Specify output point spacing minimum/maximum
Motion smoothing
Output ISO (G-Code) via user-configurable post processor
Output CATIA V5 path curves
 
 
Fiber Placement Machine Simulation

  • Based on industry leading VERICUT Software
  • User-configurable machine kinematics and control emulation models
  • Reads and simulates ISO (G-Code) NC program file
 
VERICUT Fiber Placement Machine Simulation & Analysis Features:
Continuous sweep collision detection
Accurate reverse kinematics
Simulate concurrent motion of multiple machines
Fiber placement integrated in machine simulation
Applies material per NC program commands
Simulates physical placement behavior
Apply material to the tool or previous material
Monitor roller conformance to tool/material surface
Measure material thickness, gap/overlap
Detect invalid roller/tool/path orientations
View and analyze material application statistics
 

 
Electroimpact Selects CGTech to Provide Machine Independent AFP Programming Software
 
Excerpt from:  High-Speed Fiber Placement on Large Complex Structures
By: Russell DeVlieg, Kyle Jeffries, Peter Vogeli
Electroimpact, Inc.
 
Programming of AFP machines is critical. Traditionally,the machine tool vendor has delivered AFP programming systems. However machine tool vendors do not generally excel at the type of programming required for an AFP programming system, or at providing updates for new operating systems, CAD software or computing hardware platforms.

Spirit AeroSystems has recognized the need for programming software to be provided by an industry recognized software provider as part of a standard suite of regularly updated and maintained software. The delivery of machines by competent machine tool vendors, with the delivery of programming systems by competent software vendors, mirrors practices in the mature metal removal industry. In that industry machine tool vendors by and large no longer attempt to compete with far more competent programming companies like Mastercam, Gibbs and others.

Electroimpact recognized CGTech, with their Vericut Suite of software, as being very capable to provide machine independent AFP programming software. For over 2 years Electroimpact has been in a non-exclusive partnership with CGTech to developing AFP programming software called the "Vericut Composite Programming and Simulation Suite". Major aircraft manufacturers and their partners have tested this programming software over the last 2 years, and it will be used by Spirit Aerosystems to program these new AFP machines. The software will be updated and maintained by CGTech. For further information on the
programming system contact CGTech.

The addition of a mathematically rigorous programming system has been demonstrated to eliminate end placement errors sometimes seen on machine tool manufacturer-developed programming systems. These programming system errors appear most frequently in tow convergence areas. They occur less frequently at ply boundaries.

 
 
Download Complete Electroimpact, Inc. White Paper [PDF]
 

Article printed from CGTech: http://cgtech.com/usa

URL to article: http://cgtech.com/usa/afp-programming-simulation/

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