Must Stop Agreeing to dumb jobs

Kato · 01-08-2024, 04:49 PM

I know there are some of you lot that like to play with a lathe or mill occasionally, and I am definitely in that number, well until this week anyhow,
the lesson learned for me is to ASK “what is it made of” and I don’t mean steel, alloy, Ti etc I mean specifically

I had thought a small modification on a small alloy part would take me a max 20min’s in fact probably longer to set up the job than to machine it

Having broken seveal inserts scartched my head a lot drank a lot of tea and a visit to a mate who knows

This innocuous looking light alloy part turns out to be made of something called Haynes 188 a cobalt-nickel-chromium-tungsten alloy, apparently used extensivley in gas turbine engines the stuff work hardens as soon as you look at it and required the ordering of crazy expensive inserts, and I was right job took 15 mins but nearly broke my lathe and my sense of humor

must learn to stop helping people

ASK “what is it made of” and DO NOT AGREE to machine it for anybody

01-08-2024, 04:49 PM	#1
Kato Dismantled Join Date: Feb 2006 Location: East Molesey Bike: Multiple Monsters Posts: 2,238	Must Stop Agreeing to dumb jobs I know there are some of you lot that like to play with a lathe or mill occasionally, and I am definitely in that number, well until this week anyhow, the lesson learned for me is to ASK “what is it made of” and I don’t mean steel, alloy, Ti etc I mean specifically I had thought a small modification on a small alloy part would take me a max 20min’s in fact probably longer to set up the job than to machine it Having broken seveal inserts scartched my head a lot drank a lot of tea and a visit to a mate who knows This innocuous looking light alloy part turns out to be made of something called Haynes 188 a cobalt-nickel-chromium-tungsten alloy, apparently used extensivley in gas turbine engines the stuff work hardens as soon as you look at it and required the ordering of crazy expensive inserts, and I was right job took 15 mins but nearly broke my lathe and my sense of humor must learn to stop helping people ASK “what is it made of” and DO NOT AGREE to machine it for anybody __________________ "Political correctness is just intellectual colonialism and psychological fascism for the creation of thought crime"