Milestones: Processing and Manufacturing Group

1
MilestonesProcessing and Manufacturing Group

• NSF/DOE/APC Workshop
• The Future of Modeling in Composites Molding
  Processes
• June 9-10, 2004

2
Injection Molding

• Milestone Complete the IPPD loop for long-fiber
  thermoplastics
• Gaps
• fiber orientation, fiber length attrition
• properties and durability
• crystallization/shrink/warp
• We are there when
• complete software package is available, provides
  results that we trust

3
Liquid Molding 1

• Milestone Include preform processes and preform
  architecture in the IPPD loop
• Gaps
• relate preform architecture to permeability and
  processing
• relate preform architecture to properties and
  performance
• We are there when
• part properties can be reliably and repeatably
  produced, and can be optimized

4
Liquid Molding 2

• Milestone Increase the speed of the process
• Gaps
• preform architectures for rapid filling
• understanding saturation for fast filling
• preform deformation/fiber wash
• flow and cure optimization
• . . . (any other ways that modeling can address
  this issue)
• We are there when
• cycle times approach 1 minute, with a technology
  that can be applied to new parts without
  trial-and-error