Aerospace Engineering - November 5, 2014 - 16

ADAPTIVE TRIMMING OF
COMPOSITE PARTS

machine with Siemens 840D
controls. The LM Series features
linear motors on the X and Y
axes. These linear motors provide excellent speed and acceleration performance to ensure
precise, quick moves to optimize
cycle times. Another advantage
of the linear motors is that they
are more tolerant of the waterjet
environment and carbon dust.
To maximize productivity, the
system automatically exchanges cutting tools in the spindle
and waterjet catchers to reconfigure the system appropriate
for each task.

The process
Some of the techniques used in
the Adaptive Manufacturing
System are normal aerospace
processes. The unique and enabling process is the scanning
and adaptive trimming.
Locating the part relative to
the machine is commonplace in
normal machining operations.
Typically three features or tooling holes are found and a transformation is calculated resulting
in a G54 command to identify
the machine offset to apply to
the program. This approach

16

November 5, 2014

Waterjet and catcher arrangement.

does a good job of handling parts that behave as rigid
bodies, retaining their shape even though their location
is different than nominal. In some cases, additional local
transformations can be applied by finding features local
to an area of interest and applying these to a secondary
transformation to allow parts of the program to be
transformed unique to this local area, and other parts
transformed uniquely for their areas. The techniques
employed in this system are beyond these approaches.
Similar to the conventional methods above, a G54 is
assigned based on which robot within the fixture is

AEROSPACE ENGINEERING



Aerospace Engineering - November 5, 2014

Table of Contents for the Digital Edition of Aerospace Engineering - November 5, 2014

Aerospace Engineering - November 5, 2014
Contents
What’s Online
Technology Update
Avionics
Materials
Propulsion
Adaptive Trimming of Composite Parts
Ad Index, Resource Links & Upcoming
Aerospace Engineering - November 5, 2014 - Aerospace Engineering - November 5, 2014
Aerospace Engineering - November 5, 2014 - Contents
Aerospace Engineering - November 5, 2014 - What’s Online
Aerospace Engineering - November 5, 2014 - 3
Aerospace Engineering - November 5, 2014 - 4
Aerospace Engineering - November 5, 2014 - Avionics
Aerospace Engineering - November 5, 2014 - 6
Aerospace Engineering - November 5, 2014 - Materials
Aerospace Engineering - November 5, 2014 - 8
Aerospace Engineering - November 5, 2014 - Propulsion
Aerospace Engineering - November 5, 2014 - 10
Aerospace Engineering - November 5, 2014 - 11
Aerospace Engineering - November 5, 2014 - Adaptive Trimming of Composite Parts
Aerospace Engineering - November 5, 2014 - 13
Aerospace Engineering - November 5, 2014 - 14
Aerospace Engineering - November 5, 2014 - 15
Aerospace Engineering - November 5, 2014 - 16
Aerospace Engineering - November 5, 2014 - 17
Aerospace Engineering - November 5, 2014 - 18
Aerospace Engineering - November 5, 2014 - Ad Index, Resource Links & Upcoming
Aerospace Engineering - November 5, 2014 - 20
Aerospace Engineering - November 5, 2014 - 21
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