9/28/2023 0 Comments Hay budden anvil companyThe most difficult part was getting the buildup beyond the edges far enough to ensure a straight and smooth edge after grinding. I had the welder set between 175 and 200 amps DC rev. I laid down 6 passes of the 3/16" Stoody 2110 build up rod. In hindsight I wish I would have had a appropriate temp stick to verify the optical pyrometer readings. I used a small drop of water to verify the top was hotter than the 200 deg being indicated and then used the sides to indicate the temps for the rest of the process. The shiny top plate was reading about 150 deg lower than the sides. I attributed this to differences in the emissivity of the different areas. I noticed considerable differences in the indicated temperatures from the anvil sides and top. I checked the temperature with the optical pyrometer. This allowed me to place the 4 sides over the anvil after post weld heating and put the top on after filling the box with Vermiculite.Īfter getting all the welding gear setup and ready to go I preheated the anvil evenly to 400 deg f. I placed the anvil on the bottom panel before welding. I fabricated the box and left the top and bottom panels separate from the 4 sides. I ended up with a box that was approx 2" longer, 3" taller and 2" wider than maximum anvil dimensions. Once I realized I could not get by with just one bag of Vermiculite I optimized the box size to use most of the 2 bags I would have to buy. Fortunately I realized before I went too far that the anvil base is considerably wider then the face and it would determine the minimum box width. I made the mistake of calculating the box size based on the size of the top plate. Originally I was trying to get by with just one bag of Vermiculite. I did a calculation of the anvil volume by determining the weight of 1 cu ft of mild steel (490 lbs) then dividing the anvil weight by this value to determine the approx. Calculating the box volume is pretty easy (LxWxH) but calculating the volume of the anvil to deduct from the box volume can be a little more difficult if you try to do it geometrically. Calculate box volume to ensure you will have enough Vermiculite to adequately cover the anvil for the extended cool down phase.
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