SAMPE Journal - November/December 2016 - 8
Feature Article
Figure 1. Schematic of individual
fabric plies used
in the tile.
Tile Format
This is a multi-layer fabric prepreg constructed tile,
that when molded, produces a consistent tool face
thickness, each tile being accurately orientated at 0/90
using a balanced mid plane symmetric woven fabric.
DForm® individual tiles have a cured ply thickness in the
region of 3 mm. The fibers are made discontinuous as
individual layers, and then assembled into a practical
tile with respect to size for subsequent handle-ability
(Figures 1 and 2). The resin rheology and impregnation
level is controlled to balance key properties such as tack
(adherence to adjacent plies), compliancy (supple and
conformable at 17 - 23°C) and maintenance of essential
air paths in the tile (engineered EVacuation Channels
'EVaC') to facilitate air removal and further improve
conformability (Figures 3 and 4).
8
DForm® Time Saving Opportunity
Discussion
Beginning to understand the potential labor saving
elements afforded by the DForm® formatting, is best
completed by theoretical comparisons and available
case histories of tools in service. In Figure 5 we have
considered a function of Man hours vs. Complexity and
Size, in order to assess what magnitude of labor savings
might be realized compared to using a conventional
continuous fiber tooling prepreg.
For the end user these savings essentially provide a
number of benefits, including;
* Lay down time, DForm® tiles consist of multiple
plies of prepreg, just two layers of tiles equates
to a 6 mm thick tool.
Figure 2. DForm® laminated on complex master.
SAMPE Journal, Volume 52, No. 6, November/December 2016
http://www.revchem.com
Table of Contents for the Digital Edition of SAMPE Journal - November/December 2016
Contents
SAMPE Journal - November/December 2016 - Cover1
SAMPE Journal - November/December 2016 - Cover2
SAMPE Journal - November/December 2016 - Contents
SAMPE Journal - November/December 2016 - 2
SAMPE Journal - November/December 2016 - 3
SAMPE Journal - November/December 2016 - 4
SAMPE Journal - November/December 2016 - 5
SAMPE Journal - November/December 2016 - 6
SAMPE Journal - November/December 2016 - 7
SAMPE Journal - November/December 2016 - 8
SAMPE Journal - November/December 2016 - 9
SAMPE Journal - November/December 2016 - 10
SAMPE Journal - November/December 2016 - 11
SAMPE Journal - November/December 2016 - 12
SAMPE Journal - November/December 2016 - 13
SAMPE Journal - November/December 2016 - 14
SAMPE Journal - November/December 2016 - 15
SAMPE Journal - November/December 2016 - 16
SAMPE Journal - November/December 2016 - 17
SAMPE Journal - November/December 2016 - 18
SAMPE Journal - November/December 2016 - 19
SAMPE Journal - November/December 2016 - 20
SAMPE Journal - November/December 2016 - 21
SAMPE Journal - November/December 2016 - 22
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SAMPE Journal - November/December 2016 - 24
SAMPE Journal - November/December 2016 - 25
SAMPE Journal - November/December 2016 - 26
SAMPE Journal - November/December 2016 - 27
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SAMPE Journal - November/December 2016 - 33
SAMPE Journal - November/December 2016 - 34
SAMPE Journal - November/December 2016 - 35
SAMPE Journal - November/December 2016 - 36
SAMPE Journal - November/December 2016 - 37
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SAMPE Journal - November/December 2016 - Cover3
SAMPE Journal - November/December 2016 - Cover4
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