steel overheating.

Ed Fowler said:
Mitch: The temps we use in the realm of what this discussion is all about are the same for Rex's 52100 and jd 5160. Alsays keep in mind that all 52100 and all 5160 are not the same.

Just for the record, I do not grind a blade to the point where it turns blue very often, but do not worry about it when it happens.

I do not use gloves except when welding or on my left hand while forging.
First - they are expensive and don't heal like my skin will.
Second - I like to know how hot the steel is by feel.
Third - I don't want anyting tied to me around belts or buffers that can get caught up in my work.
Click to expand...

Thank you, Ed. I thought I read somewhere that you pretty much treated your (John Deere) 5160 and 52100 the same. It really makes me think deeply that you treat both a hypoeutectoid and hypereutectoid steel the same. I guess what I'm looking for is the underlying Principle; the man behind the curtain.
Thanks again,
Mitch
 
Last edited:
Ed Fowler said:
...I do not use gloves except when welding or on my left hand while forging.
First - they are expensive and don't heal like my skin will.
Second - I like to know how hot the steel is by feel.
Third - I don't want anyting tied to me around belts or buffers that can get caught up in my work.
Click to expand...

Now this is something that we certainly can come together on. And let me tell you, with all sincerity, how pleased I am to have somebody with your influence take this approach on a rather important safety issue.:thumbup: I know it has been debated here before, and certainly will be again, with both sides claiming the side of safety, but one is a false sense of security that is outweighed by the fact that skin grows back- fingers don't.

And on your very good point of knowing how hot the steel is by feel, there is wisdom in this. In the fire service many of us old timers do not like the complete thermal protection the new gear has the ability to provide because we feel it is very important to be able to feel when you are in too deep and back off. Younger firefighters who may not notice other signs are often getting into trouble because they can't feel the heat and end up in a flashover or worse. Don't get me wrong I certainly appreciate gloves and nomex when in a burning building, but if it isolates me to the point I can't feel when I am beyond the point where any human being should be, I don't like it. Nature built right into us the best safety device for dealing with these things- a quick signal to the brain, faster than any man made contrivance, telling it to back off before it is too late.
 
I suppose a hat and safety glasses give me a "false sense of security" too,... but I still use them... not to mention shoes and clothing in general. :)

You could always try working naked if you really want to feel what's going on...
 
Last edited:
Tai Goo said:
I suppose a hat and safety glasses give me a "false sense of security" too,... but I still use them... not to mention shoes and clothing in general. :)

You could always try working naked if you really want to feel what's going on...
Click to expand...

I'll just refer you to this post in a thread I started a while back. Gloves, rings, and anything that dangle around have no place attached to me while I'm in a shop...No "false sense of security" about it. I like my fingers, and plan to keep them as long as I can. Safety equipment such as glasses and hats keep untoward things from going into me. Not wearing gloves around rotating machine ensures everything I have stays attached to me.

The trick is to set it up so the water sprays away from you... just common sense.
Click to expand...

Common sense also tells me that water hitting a grinding belt will get carried by said belt until it gains enough energy to overcome surface tension and leave said belt....onto everything in line with the belt. Think of a roostertail of water off of a tire in the rain. Same effect. Now, since I'm pretty sure most of us stand in front of our grinders while we work.... :D

-d
 
I'm with you on the rings, jewelry, and dangly things,... especially metal chains and such.

You can find examples of freak accidents and injuries involving just about any type of protective clothing, equipment or gear. However, these are the exceptions not the rule. Generally speaking they prevent more injuries than they contribute to. That’s why people use them.

With the wet grinding you just lay the grinding surface out horizontally (or use the top of a wheel rather than the side) with it spinning away from you,... fairly common in the old days.
 
Last edited:
You must log in or register to reply here.
Back
Top