Micro-crack Characteristics of Aluminum 1050 Sheets in Bending at Elevated Temperatures
Journal Title: International Journal of engineering Research and Applications - Year 2017, Vol 7, Issue 9
Abstract
Used in several industrial applications, aluminum 1050 sheets have good balance between ductility and strength. Its corrosion resistance and reflectivity make it preferred alternative for food processing containers and light reflective panels. However, forming and bending processes affect its surface quality by the formation of microcracks within the forming zones and along the bending lines, downgrading its reflective and microbiological advantages. Raising temperature through direct flame on the deformation region during bending lead to improvement in surface quality along the bend line by reducing micro-crack widths. Other mechanical properties were also found to benefit from elevated bending temperatures, including springback and microhardness within the bend region. Nevertheless, benefits gained from elevated temperature were noticed to overturn between 100°C to 150°C depending on sheet thickness and the measured mechanical property. In general, behavior of mechanical properties appeared to reasonably correlate with the average micro-crack width on the bent surface.
Authors and Affiliations
Naser Abdulrahman Alsaleh
Keywords
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