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Can you go by sound?

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发表于 2021-9-1 00:57:15 | 显示全部楼层 |阅读模式
So usually the rings I make (1/4" round CR steel) give a nice metallic ring when I toss them on the ground to test them.....but sometimes I throw a ring once and it sounds bad then on later tests breaks , but my last batch I had one w/ a dull sound that I could NOT break I'm pretty careful w/ my quality control so I was wailing on this ring due to it's sound but it passed all my strength tests and went onto become a nice drum ring....so I suppose my round about question is why the different sound on the same material? and do you pros use sound as any kind of tangible scale?  Thanks
Reply:Are you sure the one ring wasn't hot rolled maybe instead of cold rolled. Were all rings made from the same source piece or did this one come off a new piece of stock? Maybe the one with the dull ring is your next level of welding!Latest Toys Miller 180 Mig and Elite Mask!!Wright Welder 225ACShop OutFitters 20/20 Bending SystemHypertherm 380 Plasma30 Years of Sparking (Electrical & Welding)
Reply:The way we do it is all CR 20' cut to 10" and stored , I then cut my future rings from the 10' lengths.  So probably not a single bit of HR in the mix as it was just one dull ringing ring opposed to 3-4 dull rings , and all the rings I made that day had nice smooth welds and all but one had pretty much the same sound when struck.....weird..?
Reply:You might be on to something. A lot of old school hotrodders would check a forged crankshaft for cracks by tapping it with a wrench. A Good forged crank will ring like a bell. If there is a crack in the crank the tone will be very flat. Perhaps you have some flux intrapment in that weld. If it does sound different than all the rest something must be up. It wouldn't be all that much work to cut or gring through it and do it over.  Have you given any thought to making flat steel bands instead of wire rings? It would be much easier to get good welds on the flat bands.Last edited by tresi; 07-04-2007 at 11:41 AM.
Reply:Tresi is right there at it. The amount of solid metal you deposit in the gap will determine the resonant frequency of the ring. You likely have enough metal to make it strong, but not enough for it to "ring true". They are not ment to be chimes right? If it is strong enough to hold a drum...?City of L.A. Structural; Manual & Semi-Automatic;"Surely there is a mine for silver, and a place where gold is refined. Iron is taken from the earth, and copper is smelted from ore."Job 28:1,2Lincoln, Miller, Victor & ISV BibleDanny
Reply:yah it's not a musical ring it's a pull and anchor system w/ the head wrapped around a ring beneath the pull ring. So lot's of stress on the ring but it's all evenly distributed.  Sounds like it was a good enough weld to do the job but not  a top shelf weld then huh. Thanks
Reply:OT but heres a pic the anchor ring is just above the apple inlay and the pull and head ring are at the top, one wrapped in rope and fabric the other wrapped in goat.
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