[step-manufacturing] Minutes of May 20 Conference Call

[Martin Hardwick]

Attendees
Martin Hardwick, STEP Tools, USA
Mikael Hedlind, KTH, Sweden
Yujiang Li, KTH, Sweden
David Loffredo, STEP Tools, USA
Fred Proctor, NIST, USA
Bengt Olsson, Sandvik, Sweden
Leon Xu, Boeing, USA
Bob Erickson, Pratt & Whitney, USA
Erik Jacobson, GE Energy, USA*
*Vincent Marchini, Ameritech, USA
Aydin Nassehi, University of Bath, UK

Apologies for Absence
Ronnie Fesperman, NIST, USA
David Odendahl, Boeing, USA
Sid Venkatesh, Boeing, USA

KTH gave a demonstration of ISO 13399 tool export from Siemens NX. A two 
stage process was demonstrated. In the first stage a tool model was 
exported from NX as AP-214 with semantic GD&T data attached. This data 
was then read into the STEP-NC Explorer which was able to recognize the 
semantic GD&T information. In the second stage an interactive tool was 
used to add ISO 13399 properties to the data for the previously 
dimensioned functional length and cutting diameter attributes.  The 
result was an AP-214 file with ISO 13399 properties defined.

The team agreed that this approach is very promising because it gives 
end-users the ability to define functional properties for CAD models 
that can be used to define behavior in manufacturing systems. In the 
example a machining simulator will use the functional length to define 
the distance between the tool path cutting point and the spindle. In 
another example, a CAM system will use the cutting diameter for path 
planning, and we anticipate being able to map many of the machine tool 
properties being defined by SC1 and ASME onto the geometry models for 
machines in the same way.

We reviewed an architecture for open manufacturing. The team agreed that 
the architecture shows promise. The key issues are

1. How to encourage the developers of planning services to deliver their 
results as STEP-NC data.
2. How to wrap STEP-NC machining systems with MT Connect interfaces for 
networking.
3. How to support additive manufacturing systems that typically have 
their own custom CAM system.

ftp://ftp.steptools.com/private/Undecided/VMDF.pptx

A recording of the call is on the ftp site at the address below. The 
next call will be at the usual times on Friday June 3.
ftp://ftp.steptools.com/private/Undecided/stepmanuf_telecon_20110520.wmv

Action Items
1. Sandvik to develop some more examples of ISO 13399 cutting tools for 
testing.

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