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451 views Technical Discussions myaakov myaakov 02:44 Mar-05-2001 temper etch I would like to hear the opinion of people using the barkausen noise method to reveal temper etch phenomena. Thanks Myaakov@excite.com         Reply  Translate  Close   Dave Ronson Dave Ronson 08:25 Mar-06-2001 Re: temper etch : I would like to hear the opinion of people using the barkausen noise method to reveal temper etch phenomena. . : Thanks Myaakov@excite.com . We have been using Barkhausen noise for evaluating grinding processes for about 5 years now with great success. It prevented us having to spend a substantial amounts of money on a room to house the etching process, especially with the low flash point of the alcohol rinse. I guess the only down side to the Barkhausen Noise Inspection process is the need for known burn standards to initally establish the settings. Fixturing to hold the parts is also needed. We have always followed up with a swab nital etch when ever we found excessive stresses identified with the Barkhausen, and in all cases, we were able to verify the condition. We have trained our machinists on how to use the machine and they attach a readout of the scan with the work order. We have yet to try and establish standards with chrome on them to look at stress slightly below the chrome plating, which would also be beneficial for us.         Reply  Translate  Close   Product Spotlight TESTD-PT SYSTEM StandTelops Pulse thermography is a non-contact test method that is ideal for the characterization of thin fil ... ms and coatings or the detection of defects. With a remarquable short test time and a high detection sensitivity, the Telops TESTD-PT is the perfect tool for non- destructive testing. With such high frame rates, it is even possible to investigate highly conductive or diffusive materials. > 2 Showcases Panther StandEddyfi Technologies / M2M M2M PANTHER is a phased-array equipment designed for both desktop and industrial applications, offer ... ing unparalleled performance in a compact unit. It combines the speed required for industrial integrated Phased-Array Ultrasound (PAUT) solutions, with the most complete set of total focusing method (TFM) imaging techniques, making it the ultimate tool for R&D and procedure qualification. > 5 Showcases5 Videos FD800 Bench Top Flaw Detectors StandElcometer NDT The bench-top FD800 flaw detector range combines state-of-the-art flaw detection with advanced mater ... ial thickness capabilities. Designed for use in the laboratory these gauges are the tool you need for all your flaw detecting needs. > 3 Showcases Swift & Scorpion2 - a state-of-the-art remote-control ultrasonic crawler StandSilverwing The Swift and Scorpion2 dry-coupled, remote-access ultrasonic crawler bring major efficiency and d ... ata improvements to tank shell inspections and other structures such as vessels and offshore installations. > 4 Showcases4 Videos more Showcases Share... Home Exhibition Archive Forum Jobs Members Events Directory NDT A-Z Advertise Privacy Policy Contact About © NDT.net - Where expertise comes together. The Largest Open Access Portal of Nondestructive Testing (NDT)- since 1996 We use technical and analytics cookies to ensure that we will give you the best experience of our website - More Info Accept top this is debug window