دورية أكاديمية
Introduction of a New Test Methodology for Determining the Delayed Cracking Susceptibility.
| العنوان: | Introduction of a New Test Methodology for Determining the Delayed Cracking Susceptibility. |
|---|---|
| المؤلفون: | Hopf, Anton, Klug, Moritz, Durmaz, Kürşat, Goth, Klaus, Jüttner, Sven |
| المصدر: | Journal of Manufacturing & Materials Processing; Feb2023, Vol. 7 Issue 1, p26, 15p |
| مصطلحات موضوعية: | LASER welding, SHEET-steel, SAMPLING (Process), WELDING, TEST methods |
| مستخلص: | A missing test methodology that allows for the determination of delayed cracking susceptibility of laser welds of high-strength sheet steel is presented. Unlike other cold crack testing methods, this test is based on a self-restraint testing of specimens welded from thin sheet materials without welding consumables and external loading. The potential test procedure with sample geometry, clamping device and documentation of the cracks is described. It is shown that the position of the weld on the specimen is a critical parameter and the susceptibility to cold cracking increases with increasing edge distance. The test methodology in combination with the most critical seam position is successfully used to rank two different steels regarding their susceptibility to delayed cracking. Further investigations are conducted evaluating the cold cracking susceptibility at different energy levels and lubricating conditions. It is proven that the lubrication has a significant influence on the susceptibility to cold cracking. Nevertheless, a narrow but safe process window is found. [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of Manufacturing & Materials Processing is the property of MDPI and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| قاعدة البيانات: | Complementary Index |
Full Text Finder كن أول من يترك تعليقا!