Like you I get steel for free from a local skip. Most of it is hot rolled black mild steel, but some is a Cr Mo steel (En19? )wich machines well and you can get a good finish. I use it for axles, mandrels etc. and also when I need a piece of scrap metal for some temporary jig.
Someone mentioned the smell of machined metal. Apparently humans are very sensitive to the smell and taste of blood – which is close to that of iron.
Perhaps that is why model engineering appeals to man the hunter more than woman the gatherer?
Neil
(vegetarian)
Hi Neil,
We had a small incident at work a while ago when two new female apprentices were just starting the milling course.
We use a piece of EN1 Bar for the job and within seconds of taking the first roughing cuts both were near to throwing up and complaining about the smell.
I double checked and both were vegetarian (actually one was Vegan).
I suppose thats another Risk assessment Hazard I have to allow for now