Grouser Posted January 2, 2022 Share Posted January 2, 2022 Pretty new to forging having fun making knives. I have a few scraps of cast-iron but I don't know what to do with. Can I do a sanmi or what do you suggest? Thanks and Happy New Year XXX Quote Link to comment Share on other sites More sharing options...
JHCC Posted January 2, 2022 Share Posted January 2, 2022 Take them to the scrapyard and use the money to buy some decent stock. Quote Link to comment Share on other sites More sharing options...
ThomasPowers Posted January 2, 2022 Share Posted January 2, 2022 Cast iron can't be forged and is a liquid at forge welding temps for steel. Quote Link to comment Share on other sites More sharing options...
Grouser Posted January 3, 2022 Author Share Posted January 3, 2022 Well that answers that,,, thank you guys Happy New Year Quote Link to comment Share on other sites More sharing options...
ThomasPowers Posted January 3, 2022 Share Posted January 3, 2022 Now the United Nations manuals on Blacksmithing do mention heating mild steel up and a piece of cast iron as well and "smearing" the cast iron onto the mild steel to make a HC edge for edge tools; but just using automotive springs does a much better job of making edge tools that that would be a "desert island situation" type of method. Quote Link to comment Share on other sites More sharing options...
Frosty Posted January 3, 2022 Share Posted January 3, 2022 2 hours ago, ThomasPowers said: that would be a "desert island situation" type of method. Yeah and not only did nobody try that nobody hit a single piece of the steel I'd liberally scattered all over the shore in the RPG, "On The Beach." Bummer the only person who knows about that sort of thing killed himself off and didn't join the second game. Nobody's fault but mine, I'd never even played a online RPG and had no idea how difficult it is for players let alone the GM to make one work. Still I would've liked to see someone maybe make a fish or hunting spear. Oh well. <sigh.> Frosty The Lucky. Quote Link to comment Share on other sites More sharing options...
Charles R. Stevens Posted January 5, 2022 Share Posted January 5, 2022 Old horse showing manuals used cast iron scrap as hard facing and old black smithing manuals showed one how to use the same technique combined with pattern welding to make tool steels from mild steels. An interesting demo for smiths Quote Link to comment Share on other sites More sharing options...
ThomasPowers Posted January 5, 2022 Share Posted January 5, 2022 I've read of the 19th century suggestion that wootz had been made by immersing a wrought iron billet into molten cast iron; but that has been proven not to be the case! I tried welding up a billet of cast and wrought iron myself about 35 years ago, (with bad results.) Do you remember the manual that suggested "pattern welding with cast iron" to make HC steel? Quote Link to comment Share on other sites More sharing options...
Frosty Posted January 5, 2022 Share Posted January 5, 2022 Hmmm, be interesting to scatter some cast iron filings, swarf, etc. between milder steel layers. Maybe get a HC speckled billet? Frosty The Lucky. Quote Link to comment Share on other sites More sharing options...
ThomasPowers Posted January 5, 2022 Share Posted January 5, 2022 Back around 39 years ago I knew a MatSci professor who was using mild steel spheres and casting a cast iron matrix around them and then soaking them to get a homogeneous carbon content. I've wanted to try brake lathe dust and lathe swarf in a container weld. Maybe throw in some powdered nickel for fun. Quote Link to comment Share on other sites More sharing options...
Grouser Posted January 5, 2022 Author Share Posted January 5, 2022 On 1/2/2022 at 12:03 PM, JHCC said: Take them to the scrapyard and use the money to buy some decent stock. I have plenty of decent stock I was just asking how to use the scraps,,,,,,, thanks for all your help..... Quote Link to comment Share on other sites More sharing options...
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