tonyjohnson
Well Known Member
I used poor technique when I drilled out the existing hole in my nosegear strut in preparation for reaming it for the taper pin modiciation. I drilled too fast and too long. I ruined my brand new bit, and had to buy another bit with which I finished the hole properly going slower and at slower speed using lots of oil.
The excessive heat seems to have work hardened the hole so that the taper reamer will not cut.
The reamer did cut initially but ceased cutting when it got to the part of the hole that seems to be work hardened. I tried for hours turning the reamer by hand. I tested the reamer by doing a couple of turns with it in the other side of the hole, and it works.
My guess is that the portion of the hole that is work hardened is about 1/2 to 3/4 of an inch long.
Unless I can come up with a better plan, I will probably try running a size S bit (.004 wider than 11/32) in the hopes of removing the area that is work hardened.
Any ideas about how to address this problem?
Thanks
The excessive heat seems to have work hardened the hole so that the taper reamer will not cut.
The reamer did cut initially but ceased cutting when it got to the part of the hole that seems to be work hardened. I tried for hours turning the reamer by hand. I tested the reamer by doing a couple of turns with it in the other side of the hole, and it works.
My guess is that the portion of the hole that is work hardened is about 1/2 to 3/4 of an inch long.
Unless I can come up with a better plan, I will probably try running a size S bit (.004 wider than 11/32) in the hopes of removing the area that is work hardened.
Any ideas about how to address this problem?
Thanks
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