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Attendees<br>
---------------<br>
Alain Brail, Airbus<br>
John Witko, General Dynamics Land Systems<br>
Jan De Nijs, Lockheed Martin<br>
Fred Proctor, NIST<br>
Bengt Olsson, Sandvik<br>
Ramayya, Boeing<br>
Chen-Han Lee, Siemens UGS Software<br>
Curtis Brown, Honeywell<br>
Martin Hardwick, STEP Tools, Inc.<br><br>
Apologies for absence<br>
--------------------------------<br>
Shaw Feng, NIST<br>
John Horst, NIST<br>
Ray Admire, Lockheed Martin<br>
David Odendahl, Boeing<br>
Xun Xu, New Zealand<br><br>
1. SCRA has made a STEP file describing tolerances for the fish-head
part. STEP Tools has been able to read and process those tolerances with
a new version of the STEP-NC Explorer. The file is in the Dallas ftp site
along with an updated version of the STEP-NC Explorer. The file is
available in its raw state as sent by SCRA
(aerospatial_tes10_224.stp) and as a commented version
(aerospatial_tes10_224_fmt.stp) produced by STEP Tools that is easier to
examine in a text editor.<br><br>
<a href="ftp://www.steptools.com/private/Dallas" eudora="autourl">
ftp://www.steptools.com/private/Dallas<br><br>
</a>2. Sandvik has used UGS to make a rough model for the part that
removes more material than the rough model used for the Ibusuki
demonstration. <font size=2>They recommend that the roughing is done in
two steps. First with a large diameter tool to remove the majority of the
material and then with a small diameter tool to clean up the
corners.<br><br>
OP1. The tool used in the attached simulation is a router with indexable
inserts (diameter 44mm, radius 4mm and length 60mm). In this simulation
the 4th axis (the table) was used to create a part of the "outward
leaning side". This step could be removed if we decide to go for
3-axis machining only. I also have the stl file (11MB) of what the
workpiece looks like after this first roughing operation. Our UG system
was unable to convert to 203 format.</font> <br><br>
<font size=2>OP2. A smaller tool (diameter 20 or 16) should be used
to clean up the corners from excess stock prior to finishing. This step
has not been simulated</font> <br><br>
The data made by Sandvik has been put into the ftp site as a ZIP
directory and a wmv file.<br><br>
3. The following changes have been suggested by Airbus for the features
to be measured. <br><br>
i- Datums B and C are required to define the reference for finishing has
been machined. B' may be on the left side for a better
accuracy (higher than the actual B)<br>
ii- for hole we suggest you cancel the perpendicularity check (as the
hole depth is only a few millimeters) and replace with a diameter size
dimension<br>
iii- for the angular measure in the corner we propose to cancel the check
in the corner and measure the angle of the internal surface of the
right side. It must be 15°+-0.01 A.<br><br>
A jpeg showing the features is at the following URL :
<a href="ftp://www.steptools.com/private/Dallas/Fish_Head_Datums_and_Tolerances.JPG" eudora="autourl">
ftp://www.steptools.com/private/Dallas/Fish_Head_Datums_and_Tolerances.JPG</a>
<br><br>
4. John Horst and Ray Admire have been able to interest Mori-Seiki in
hosting the demonstration.<br><br>
Schedule<br>
--------------<br>
No changes have been made to the schedule but potential participants
should note that the deadline for confirming participation will be
reached by the time of the next conference call.<br><br>
November 1st
<x-tab> </x-tab><x-tab>
</x-tab>- Machining
demonstration<br>
October 24th
<x-tab> </x-tab><x-tab>
</x-tab>- Finish
machining tests<br>
October 10th
<x-tab> </x-tab><x-tab>
</x-tab>- Begin machining
tests<br>
October 1st
<x-tab> </x-tab><x-tab>
</x-tab>- Finish tool
path development<br>
September 15th <x-tab> </x-tab>- Begin tool path development<br>
September
1st<x-tab> </x-tab><x-tab>
</x-tab>- Confirmation of
participants<br><br>
New Action Items<br>
--------------------------<br>
Shaw Feng and HiPP team to review the inspection features suggested by
Airbus<br>
Chen-Han Lee to assist Bengt Olsson in converting the Sandvik rough model
to AP-203<br><br>
Old Action items<br>
------------------------<br>
David Loffredo and David Odendahl to investigate use of rotate command
for two dimensional probing<br>
Fred Proctor to prepare a welcome package for new organizations that want
to join the demonstration<br>
Xun Xu to review the welcome package and scenario documentation<br><br>
Closed Action Items<br>
-----------------------------<br>
Martin Hardwick to send AP-203 file for the fish head to Len Slovensky
<br>
Len Slovensky to prepare a draft AIC for the inspection features<br>
David Odendahl to contact Chen Han Lee of UGS and John Horst to contact
John Schafer of UGS about participating in the demonstration<br>
Fred Proctor to investigate use of Pro/Manufacturing for developing fish
head tool paths<br>
Martin Hardwick to contact Prof. Kisinami about Far East participation in
the demonstration<br>
Alain Brail to contact Renishaw about using their macros for two
dimensional (X and Y) probing<br>
Martin Hardwick to send Catai data for the Ibusuki demonstration to Shaw
Feng<br>
Len Slovensky to investigate developing an AP-224 file with the
tolerances for the fish head part as a substitute AP-203 e2 file<br>
John Horst to assist Ray Admire in contacting the Mori-Seiki tech
center<br>
Bengt Olsson to investigate requirements for optimal tool
selection<br><br>
<br>
The next conference call will be held on Wednesday September 5th at the
same time 4:30PM France, 10:30 AM Eastern USA, 9:30AM Central USA, 7:30AM
Western USA.<br>
As recorded by Martin Hardwick<br>
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