Tuesday, May 21, 2013

Fire and Steel


Fire and Steel
 
            I fired up the forge in the blacksmith shop the other day. I was trying to fashion a turnbuckle and swivel contraption such that I could tether two goats to the same stake without them being able to tangle their ropes.    
            I have an assortment of old steel that I gathered from old farmsteads. Most of this steel were parts of old farm equipment some time ago, vintage, late eighteen hundreds to the nineteen fifties. In fashioning hinges, latches, hangers and suchlike from this old steel, I can at times retain some of the original design of the steel and carry it  into the new design I am constructing, thereby incorporating some of the old beauty into the new functionality.
            There is a challenge to this though, as I don’t always know what other alloy metals have been added to the iron that make up the ingredients of the particular piece of steel I choose. Metallurgists allay many different metals into iron to give it different desired characteristics. Adding carbon, silicon, manganese and a host of others at different proportions can change the ductility, hardness and wearability considerably.
            The consequence is that when I heat up my selected steel, I never quite know how it will act. It may act quite differently than any other.
            But I heat it, and hammer it. Cool it, and harden it. I heat, mold, and quench it. Then I hold it up for inspection. I then crank the blower again. I get a hot fire, heat the steel up again, to white orangeish hot, carry it to the anvil, pound some more; forge, forge, forge, and then back to the fire.
            And that’s what I did with this piece of steel in making my goat tethering invention. In this case though there was a little difference that gave me pause. When heated to forging temperature, there appeared a bluish color to the flame that told me there was an unusual metal in this alloy. I had to be  prepared for surprises. Well, it forged fine so I continued and in fact was very happy with the shape I coaxed it into.
            Pleased with myself, I placed it into my peg leg vise. I needed to give it one last little tweak of a twist and I would be a happy craftsman indeed. So I twisted, but with the very unhappy consequence of it shattering in my hand. By heating and pounding this particular piece of steel in this manner, and quenching it to harden it, it indeed hardened, but it also changed the crystalline structure so radically that the steel  became brittle.
            Disappointed, I gazed into the hot bed of coals in the forge and mused a bit. That little blue flame was telling me what kind of metal I had taken up. And it hadn’t been up to the job. It wasn’t of the right kind of metal.
            As I poked around in the coals this thought came to mind;
            As silver is tried by fire, and gold in the furnace: so the Lord trieth the hearts. Proverbs 17:3
             Pondering these words I went out and got me another piece of iron. Into the fire it went and I  forged it to my liking. It stayed true. No impurities sabotaged the work it was to do. My little invention worked fine. The goats enjoy a tangle free life.
            As for us, we walk in the furnace of life and am tried by fire. Will it make us brittle and worthless or purify us into precious metal? We don’t know yet. The Craftsman isn’t done. But into the fire and out again, we are forged into what He wants.
            Sure hope I don’t shatter. I have to leave it at that though, I must hie into the house for the dinner that calls, as the perfect roast just emerged from the hot oven.
Have a great day!
David Cools

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