کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
774151 | 1462997 | 2013 | 9 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Influence of the residual stresses induced by tool wear on the failure of brass electro-valves Influence of the residual stresses induced by tool wear on the failure of brass electro-valves](/preview/png/774151.png)
Failure analysis was performed on different brass electro-valves body affected by unexpected phenomena of cracking. Through the application of optical and scanning electron microscopy, micro hardness Vickers test and X-ray diffraction, the causes of damage were identified. The study showed the dependence between roughness and residual stress associated to the tool wear. A solution to avoid the failure is finally proposed, based on the use combination of a tool with controlled wear and stress relieving heat treatment.
► Different electro-valves body were affected by phenomena of cracking.
► The failure is related to residual stresses induced by machining operations performed with wear tools.
► The use of tools with controlled wear and correct stress relieving treatment avoid the failure.
Journal: Engineering Failure Analysis - Volume 27, January 2013, Pages 141–149