Reverse engineering on show at MACH
A
Delcam product story
Edited by the Engineeringtalk editorial team
Apr 22, 2004
On stand 5371 at MACH, Delcam will demonstrate the finishing by robot of a composite wing spar test section supplied by Airbus.
On stand 5371 at MACH, Delcam will demonstrate the finishing by robot of a composite wing spar test section supplied by Airbus.
This will show how robots could provide a more cost-effective option than conventional machine tools for the finishing of large components made from softer materials.
Typically with composite components, there will be some flash from the moulding operation that needs to be removed before assembly into the aircraft structure.
The first stage in the process is to probe the part with a Krypton's metrology system fitted with Delcam's PowerInspect and PowerShape software to reverse engineer the component as manufactured.
The material to be removed can be identified by comparing the resulting model with the required shape as defined in the master CAD design.
If the part has been defined with another CAD system, the design can be taken into PowerShape via Delcam's PS-Exchange data translation system.
The trimming toolpaths can then be created within Delcam's PowerMill CAM software to develop the robot paths completely "offline".
The Kuka robot undertakes the trimming of the spar section, with online compensation using a Krypton camera to compensate for variances between the nominal CAD world and reality.
The trimming will normally be done with swarf cuts along the edges of the component.
For the purposes of the demonstration, the robot will also machine the Delcam and Airbus logos into the cross-section of the spar test section.
Finally, the Krypton probe is used again with PowerInspect to confirm that the trimming operation has removed the correct amount of material to leave a component that conforms exactly to its CAD model.
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