Fellini Posted January 18, 2011 Share Posted January 18, 2011 Hi, I have a piece of 3 feet long and 6" diameter of an hydraulic rock breaker hammer. I would like to use it as an anvil. I have two questions: 1. Is it a good material for an anvil? 2. How can I cut the 6" steel? Regards, Fellini Quote Link to comment Share on other sites More sharing options...
arftist Posted January 18, 2011 Share Posted January 18, 2011 I would first try to use the entire piece without cutting it. I would put a lot of thought and effort in that direction. If that is completely impossible, then I would likely try first, oxy-fuel, with a large tip and high oxy pressure (60-80 psi) and second, an oxegen lance. The other posibilty, if you can afford it, is a Partner saw and a big stack of blades. But I wouldn't bet on the Partner saw. Quote Link to comment Share on other sites More sharing options...
ThomasPowers Posted January 18, 2011 Share Posted January 18, 2011 When we cut my 5"+ 4140 piece we used a large engine powered saw as is used to cut concrete slabs for road work. As it encounters a lot of high grade rebar in those cuts it's blade is designed to deal with steel as well as concrete. Quote Link to comment Share on other sites More sharing options...
Nakedanvil - Grant Sarver Posted January 18, 2011 Share Posted January 18, 2011 The very large ones (over 5") are usually 4340 or better (en-30B) usually around 50 Rc. I don't have any trouble cutting them in my bandsaw at 100fpm with full-flow coolant. High alloy will cut with a torch IF you get a good pre-heat. Cast it in a block of concrete and go to town! Oops! Three-feet long, now I see why you need to cut it down. Quote Link to comment Share on other sites More sharing options...
tala9 Posted January 18, 2011 Share Posted January 18, 2011 you could torch cut it but if you do not have the equipment to cut it in a single pass you could end up with a very ugly cut requiring more grinding to clean up that to cut it off with a grinder. If you have a band saw that would be best with lots of coolant and go slow. If you do not have a band saw I would cut it with my large hand held grinder using a piece of tape as a guild line and plunge in taking your time being very careful not to cock the disc. Quote Link to comment Share on other sites More sharing options...
Nakedanvil - Grant Sarver Posted January 18, 2011 Share Posted January 18, 2011 If you use a torch, make a cut one inch or so out from your intended cut. It'll be pretty nasty, but will put some good pre-heat into the end. Make another cut about a half inch more and then you final cut. Each cut will go better due to the heat in the bar. Or heat the end red-hot in your forge and cut it. Once it's red-hot you can even torch-cut cast iron! Quote Link to comment Share on other sites More sharing options...
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