TOP TEN ROBOTIC AUTOMOTIVE PAINTING TECHNIQUES
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1. The use of a “pre-spray” process can eliminate paint defects such as spitters. After a paint
applicator completes a cleaning cycle, the applicator may have residue or solvents in the nozzles.
The next time the applicator is “triggered” or turned on, the droplets will be sprayed on the vehicle.
By creating a simple robot program that moves between two points, and triggers the gun spraying
into the booth grates below, the residue will be removed from the applicator.
2. When using an air atomizer or “gun”, never reverse directions of the robot while the paint applicator
is “on” over the vehicle because this causes an excessive buildup of paint on the surface. Instead
the robot should “fan off” the part, and then turn around and “fan on” to the part. It may use more
material to spray off the part but the quality improvements are worth the extra material.
3. The order of your robot processes or paths can minimize quality defects. Always paint vehicle
interiors such as the inner door ring or under the hood before painting exterior panels such as the
fenders or doors. When painting exterior surfaces, horizontal panels, such as the hood and roof
should be sprayed before the “vertical” surfaces such as fenders and door sides. This will reduce
overspray from the sides getting onto the hood.
4. Do not allow the robot arm and paint applicator to hang out over the vehicle unless necessary.
Overspray from the paint booth collects on the robot. This paint becomes tacky and is a good place
where dirt can settle. This dirt eventually falls off the robot and down to whatever is below the arm.
If it falls on the vehicle it may stay there and become part of