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<p>Attendees <br>
-------------- <br>
</p>
Martin Hardwick, STEP Tools, USA <br>
David Loffredo, STEP Tools, USA <br>
Joe Fritz, STEP Tools, USA<br>
Martin Hardwick, STEP Tools, USA <br>
Samson Bonfante, STEP Tools, USA<br>
Bengt Olsson, Sandvik, Sweden<br>
Mikael Hedlind, Scania, Sweden<br>
John Bijnens, KU Leuven, Belgium <br>
Pierre Duchier, Airbus, France <br>
Alain Brail, Airbus (retired) France<br>
Jean Brange, Boost-Conseil, France<br>
JuMyung, POSTECH, Korea
<br>
Sid Venkatesh, Boeing, USA <br>
Rich Morihara, Boeing, USA<br>
Chris Stedman, Boeing, USA<br>
Leon Xu, Boeing, USA <br>
Dan Finke, Penn State University, USA <br>
Caleb Severn, Penn State USA <br>
Larry Maggiano, Miututoyo, USA <br>
Vincent Marchetti, Ameritech, USA<br>
Thanh, Hyun, Okuma, USA<br>
Ted Driggs, Okuma, USA<br>
<br>
We discussed the results of the second wet run machining.<br>
<br>
<a class="moz-txt-link-freetext"
href="http://swim.steptools.com:8085/">http://swim.steptools.com:8085/</a><br>
<a class="moz-txt-link-freetext" href="ftp://downloads.steptools.com/private/JWG15/Mukilteo/">ftp://downloads.steptools.com/private/JWG15/Mukilteo/</a><br>
<br>
The issue found and their suggested resolutions are listed in the
spreadsheet below. The next wet run will take place over the
weekend and the results will be discussed in the next conference
call to take place at the usual times on Wednesday September 7th.<br>
<br>
<table style="border-collapse: collapse;width:880pt" border="0"
cellpadding="0" cellspacing="0" width="1171">
<colgroup><col
style="mso-width-source:userset;mso-width-alt:3520;width:83pt"
width="110"> <col
style="mso-width-source:userset;mso-width-alt:8896;width:209pt"
width="278"> <col
style="mso-width-source:userset;mso-width-alt:11328;width:266pt"
width="354"> <col
style="mso-width-source:userset;mso-width-alt:2560;width:60pt"
width="80"> <col
style="mso-width-source:userset;mso-width-alt:11168;width:262pt"
width="349"> </colgroup><tbody>
<tr style="height:15.0pt" height="20">
<td class="xl68" style="height:15.0pt;width:83pt" height="20"
width="110">Category</td>
<td class="xl68" style="width:209pt" width="278">Item</td>
<td class="xl68" style="width:266pt" width="354">Description</td>
<td class="xl68" style="width:60pt" width="80">Date</td>
<td class="xl68" style="width:262pt" width="349">Notes</td>
</tr>
<tr style="height:45.0pt" height="60">
<td style="height:45.0pt" height="60">Setup</td>
<td>Stock specificaions</td>
<td class="xl67" style="width:266pt" width="354">Got stock
height wrong.<span style="mso-spacerun:yes"> </span>It is
95.9 not 88.9.<span style="mso-spacerun:yes"> </span>Added
7mm to Z location so bottom of block is -92mm.</td>
<td class="xl66" align="right">8/27/2016</td>
<td class="xl67" style="width:262pt" width="349">Boeing will
reduce stock height to 88.9</td>
</tr>
<tr style="height:45.0pt" height="60">
<td style="height:45.0pt" height="60">Web interface</td>
<td>Datum surfaces</td>
<td class="xl67" style="width:266pt" width="354">How do you
see the datum surfaces B, D, E, G during setup 1?<span
style="mso-spacerun:yes"> </span>It will help to see how
to rotate the part for setup 2.</td>
<td class="xl66" align="right">8/27/2016</td>
<td class="xl67" style="width:262pt" width="349">STEP will add
datum surfaces to result of setup 1</td>
</tr>
<tr style="height:30.0pt" height="40">
<td style="height:30.0pt" height="40">NC program</td>
<td>Small cutter for sides</td>
<td class="xl67" style="width:266pt" width="354">Why do we use
the 10mm cutter instead of the 16mm for surfacing the sides
during setup 1?</td>
<td class="xl66" align="right">8/27/2016</td>
<td class="xl67" style="width:262pt" width="349">Corner radius
on the 16mm cutter seems to be missing</td>
</tr>
<tr style="height:30.0pt" height="40">
<td style="height:30.0pt" height="40">NC program</td>
<td>Climb cutting</td>
<td class="xl67" style="width:266pt" width="354">Still appears
to be conventional milling on sides during setup 1.</td>
<td class="xl66" align="right">8/27/2016</td>
<td class="xl67" style="width:262pt" width="349">PSU will fix
for the next run</td>
</tr>
<tr style="height:30.0pt" height="40">
<td style="height:30.0pt" height="40">NC program</td>
<td>Aggressive cut top</td>
<td class="xl67" style="width:266pt" width="354">Seems like
setup 1, pass 1 has a more aggressive cut when surfacing the
top.<span style="mso-spacerun:yes"> </span>Could be just
our imagination.</td>
<td class="xl66" align="right">8/27/2016</td>
<td class="xl67" style="width:262pt" width="349">This was
expected - feeds are programmed for full engagement</td>
</tr>
<tr style="height:30.0pt" height="40">
<td style="height:30.0pt" height="40">NC program</td>
<td>Coolant</td>
<td class="xl67" style="width:266pt" width="354">Coolant on
code was for flood.<span style="mso-spacerun:yes"> </span>Would
like to use thru-tool coolant.</td>
<td class="xl66" align="right">8/27/2016</td>
<td class="xl67" style="width:262pt" width="349">Need info to
understand how this works. Maybe M50 or M51</td>
</tr>
<tr style="height:30.0pt" height="40">
<td style="height:30.0pt" height="40">NC program</td>
<td>Aggressive cut sides</td>
<td class="xl67" style="width:266pt" width="354">First pass on
the sides is heavy.</td>
<td class="xl66" align="right">8/27/2016</td>
<td class="xl67" style="width:262pt" width="349">This was
expected - feeds are programmed for full engagement</td>
</tr>
<tr style="height:30.0pt" height="40">
<td style="height:30.0pt" height="40">NC program</td>
<td>Additional passes</td>
<td class="xl67" style="width:266pt" width="354">Final passes
on setup 1 sides has two passes separated by a very small
amount.</td>
<td class="xl66" align="right">8/27/2016</td>
<td class="xl67" style="width:262pt" width="349">This was will
be fixed in next version</td>
</tr>
<tr style="height:30.0pt" height="40">
<td style="height:30.0pt" height="40">NC program</td>
<td>Aggressive first pass</td>
<td class="xl67" style="width:266pt" width="354">Setup 2:<span
style="mso-spacerun:yes"> </span>Heavy first pass on
surface</td>
<td class="xl66" align="right">8/27/2016</td>
<td class="xl67" style="width:262pt" width="349">This was
expected - feeds are programmed for full engagement</td>
</tr>
<tr style="height:15.0pt" height="20">
<td style="height:15.0pt" height="20">NC program</td>
<td>Aggressive cut pocket</td>
<td class="xl67" style="width:266pt" width="354">Setup 2:<span
style="mso-spacerun:yes"> </span>Heavy cuts in pocket.<span
style="mso-spacerun:yes"> </span>Noisy in corners</td>
<td class="xl66" align="right">8/27/2016</td>
<td class="xl67" style="width:262pt" width="349">Will
investigate and improve for next version</td>
</tr>
<tr style="height:45.0pt" height="60">
<td style="height:45.0pt" height="60">NC program</td>
<td>Drill</td>
<td class="xl67" style="width:266pt" width="354">Drill used
was high-speed-steel.<span style="mso-spacerun:yes"> </span>Drill
badly worn.<span style="mso-spacerun:yes"> </span>Shaft
was galled from rotating in collet.<span
style="mso-spacerun:yes"> </span>Holes were not fully
drilled</td>
<td class="xl66" align="right">8/27/2016</td>
<td class="xl67" style="width:262pt" width="349">Will use
carbide drill for next test</td>
</tr>
<tr style="height:30.0pt" height="40">
<td style="height:30.0pt" height="40">Video</td>
<td>Different positions</td>
<td class="xl67" style="width:266pt" width="354">Tried
different locations of video but still gets sprayed heavily.</td>
<td class="xl66" align="right">8/27/2016</td>
<td class="xl67" style="width:262pt" width="349">Will try
again</td>
</tr>
<tr style="height:15.0pt" height="20">
<td style="height:15.0pt" height="20">NC program</td>
<td>Varying step amount during surfacing</td>
<td class="xl67" style="width:266pt" width="354">Why is third
pass step is greater than second step?</td>
<td class="xl66" align="right">8/27/2016</td>
<td class="xl67" style="width:262pt" width="349">See row 9</td>
</tr>
<tr style="height:30.0pt" height="40">
<td style="height:30.0pt" height="40">Relief on cutter</td>
<td>How to manage the upper and lower reliefs</td>
<td class="xl67" style="width:266pt" width="354">Should we
reduce the depth of cut? How much?</td>
<td class="xl66" align="right">8/30/2016</td>
<td class="xl67" style="width:262pt" width="349">Will discuss
with Bengt, measure the position, and reduce flute length</td>
</tr>
<tr style="height:45.0pt" height="60">
<td style="height:45.0pt" height="60">Stock off center</td>
<td>More material is being cut on two of the sides</td>
<td class="xl67" style="width:266pt" width="354">Consider
moving the machining center to the part center</td>
<td class="xl66" align="right">8/31/2016</td>
<td class="xl67" style="width:262pt" width="349">Keep current
offsets so that machining origin is at the corner. Delete
rapids to part center to reduce operator stress/confusion</td>
</tr>
</tbody>
</table>
<br>
<br>
Martin Hardwick<br>
Convener ISO Digital Manufacturing<br>
<br>
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