Made Some Titanium 440 Crankshaft Damper Bolts & Washers Today
The heat has been pretty oppressive the last two weeks in Indiana, so I figured it was time to get this project done and spend some time in the AC.
I took a couple 7/8" diameter 12-point titanium aircraft bolts I bought off eBay years ago and made them into crankshaft damper bolts.
Titanium is not like a hardened steel bolt in that you can remachine it and it doesn't change any of the mechanical properties.
Drilled a 5/16" hole up the middle to save some weight and then went back in with a ball nose end mill to finish out the bottom of the hole, so no sharp edges inside.
These will go along with the 7075-T7 aluminum and 6AL4V titanium washers I made to go with them.
Fun project for the evening and I should have washed the coolant off of them before I shot the photos. The surfaces are a lot nicer than the photos show.
Tom
The heat has been pretty oppressive the last two weeks in Indiana, so I figured it was time to get this project done and spend some time in the AC.
I took a couple 7/8" diameter 12-point titanium aircraft bolts I bought off eBay years ago and made them into crankshaft damper bolts.
Titanium is not like a hardened steel bolt in that you can remachine it and it doesn't change any of the mechanical properties.
Drilled a 5/16" hole up the middle to save some weight and then went back in with a ball nose end mill to finish out the bottom of the hole, so no sharp edges inside.
These will go along with the 7075-T7 aluminum and 6AL4V titanium washers I made to go with them.
Fun project for the evening and I should have washed the coolant off of them before I shot the photos. The surfaces are a lot nicer than the photos show.
Tom