<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8">
</head>
<body text="#000000" bgcolor="#FFFFFF">
<p><font size="+2">Digital Twin Machining at IMTS 2018</font></p>
<p><font size="+1">Overview</font><br>
Manufacturing becomes faster, more flexible and more accurate when
digital models are used as the language for controlling
manufacturing machines. Five years ago, the digital thread was
proposed as a way to deliver the necessary data from CAD and CAM
systems. Now new controls are becoming available to manage this
data on the machine by building digital twins of the manufacturing
process.</p>
<p><font size="+1">Meeting Summary</font><br>
At IMTS 2018, ISO and OMAC helped DMG and Hyundai demonstrate the
first commercially available digital twinning software at their
booths. The two vendors took turns to rough and finish a five-axis
aerospace part that was developed by airbus with tolerances added
by Boeing. The team showed how digital twins make on demand
measurement simple by showing green, yellow and red colors to
indicate which faces on the part are meeting their tolerances and
which are not conforming (Fig.1). They showed how to make
manufacturing more adaptive by modifying twins for new schedules,
new tooling and new workpieces, and they showed how to make
manufacturing safer by using twins to perform real time collision
detection and on-demand path planning.</p>
<p><font size="+1">Key takeaways</font><br>
• Large manufacturing enterprises will benefit considerably from
the more efficient supply chain communication enabled by the
digital thread.<br>
• Machine tool builders will benefit considerably from the
increased functionality enabled by digital twins.<br>
• These two groups should now collaborate to deploy digital twins
and the digital thread across manufacturing starting with the
aerospace sector because it has the most variability between
parts.</p>
<p><font size="+1">Strategic follow on actions</font><br>
Develop a "Digital Manufacturing Implementor's Forum (DM-IF)" with
a mission to deploy the digital thread by:</p>
<p>1. Helping machine tool builders process digital thread data on
their machines by using pilot projects to make digital twin
machining test cases.<br>
2. Helping CAD and CAM vendors read and write digital thread data
by sorting out communication difficulties and misunderstandings.<br>
3. Helping software developers make applications that deliver the
benefits by giving them low cost access to the test cases and the
CAD/CAM translators.</p>
<p><font size="+1">Help please</font></p>
<ul>
<li>Work with us to develop detailed plans for the DM-IF by
attending the kickoff meeting on Thursday November 8th at the
DMDII in Chicago.</li>
<li>Encourage key aerospace executives to sponsor the pilot
projects that will make the DM-IF viable.</li>
</ul>
<p><img src="cid:part1.8410D75C.3F1B5F96@steptools.com" alt=""></p>
<p><b>Fig. 1 Digital Twin machining gives immediate feedback on the
quality of a CATIA part<br>
</b></p>
</body>
</html>