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Post by waltznjack on Sept 2, 2008 4:02:19 GMT
Reading about breaking swords I remember a simple process for revealing cracks. Magnetic particle testing involves passing an electrical current through the blade and spraying solution of kerosene and minute steel flakes over the blade.
Kerosene solution is applied first and then a current passed thru the object. It has been over several years ago so I am not exactly sure. Shinning a special light will reveal the steel flakes aligning themselves in the form of any crack in the test object whether deep or not. This process is inexpensive and is used to test aircraft engine parts, railroad axles, rifle barrels, receivers and other critical parts to name just a few applications.
I am not sure of the name, it could just as well be electro magnetic particle testing or some similar name. While attending college full time I worked full time at various jobs. One of my jobs involved using this process to test for cracks on various metal objects described above.
Really surprises me that that this simple test is not used on sword blades but quality control is a non issue in sword manufacture because of the bottom line.
Even if this test added a few dollars to the purchase price of a sword it would be worth it for safety's sake.
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Post by Deleted on Sept 7, 2008 0:40:44 GMT
I believe this process is called magnetfluxing
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Post by Deleted on Sept 10, 2008 17:57:22 GMT
Close...magnaflux
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