replying to Jim Wilkins , Bob Lowe wrote:
muratlanne wrote:

"John B." wrote in message
...
I assumed that 'billet' meant the part had been machined from bar
stock instead of stamped or forged.
http://en.wikipedia.org/wiki/Camshaft
jsw


Thanks for all of the info and where to find more...I worked all of my
life in the aircraft field but never with nuts and bolts...I was always in
the electronics part. We did get retrofit 'kits' sometimes but someone
else made them up. The first plane I flew in was a Tri Motored Ford and
the last was a Stearman PT-17 with 70 years in between. My first
operation squadron in the Air Force was made up of B-17's and C-47's and
after that since 66 I worked for NAVAIR and NAESU, sorry for the acronyms.
I don't know about the proper use of Billet 'designation' but I do know
when I worked at the Douglas, El Segundo Plant, truck loads of aluminum
alloy 'billets' would come in every day. I just looked in a reference
book and it says, under Aluminum Types: Class T6, Solution heat-treated
and then artificially aged. Common class. Now I have to find out what is
'artificially aged'. Is this some kind of freezing and warming process?

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