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Poley4

Poley4

ArboristSite Guru
Joined
Mar 15, 2007
Messages
869
Location
Ozark mountains, Arkansas
Thanks:
I'd post more but I'm a machinst and I mainly glean tech info. I make a lot of washers for the NH grinders, but their aren't many metal or metal working questions here.
Rob

Well Rob, here is a metal working question of sorts. How thick are the washers that you are making for the NH grinder? I made one the other day at work, but I wasn't really sure how thick to make it, so I parted mine off at .060". I also didn't have any stainless laying around, but since I work as a machinist at an aluminum die cast plant, I did have access to a old wore out plunger tip which are made out of beryllium copper, good stuff.
 
Stihl 041S
Joined
Dec 9, 2006
Messages
14,675
Location
Quaker Valley
Well Rob, here is a metal working question of sorts. How thick are the washers that you are making for the NH grinder? I made one the other day at work, but I wasn't really sure how thick to make it, so I parted mine off at .060". I also didn't have any stainless laying around, but since I work as a machinist at an aluminum die cast plant, I did have access to a old wore out plunger tip which are made out of beryllium copper, good stuff.

3.535 OD, 3.140 ID, .025 thick. break all corners. We use a lot of stainless, so I got some 416 because it machines so well. Since you machine away 97%, you hate to pay for it.
 
blsnelling
Joined
Nov 8, 2006
Messages
53,727
Location
Franklin, OH
I've got a metal question for you here. Is this corrosion or a casting flaw? This is a NOS 084 case. I have no idea how old it may be.
242981150-M.jpg
 

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