The customer is an aerospace manufacturer
that makes landing gear actuators. The
machine they use to manufacture their
products is a Giddens & Lewis HMC290
50HP with Hangsterfers H500-CF coolant.
The customer originally used several steps in
order to manufacture their product. First they
did a rough drill with a Kennametal indexable.
Second, they drill formed with an AMEC
special form blade. Third, they bore to blend
bore with angles. Lastly, they sanded and
polished the bore. This process was run at 60 SFM and .007 IPR. The customer wanted to eliminate several manual operations on the
blending and polishing, a process that was
taking 3-4 hours per part.
AMEC suggested using a special chrome
helix holder (part #041217-31). It is a T-A® CNC ground blade with TiAIN coating. These blades are known for a consistent finish and sizing. The blades would be run at 90 SFM and .015 IPR. The results showed once again that AMEC was stronger. It took less than one hour for blending and sanding. The machine cycle time was also cut to 12 minutes a part versus 50 minutes with 50% less load on the spindle. There was $495.00 cost savings per part and the new blade cut the time to 30-45 minutes.
Instead of the 3-4 hours the
process was originally taking, the
customer saved 2 1/2 to 3 hours in cycle time. With this drop in cycle time also came reduced costs.