Investigation On Stretch Formability Of Aa6023-T6 Alloy Sheet

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Sheet metal forming is a process widely used in the manufacturing industry. There are several sheet metal forming processes are existed including stretch forming process. In this thesis, stretch formability of AA6023-T6 alloy sheet at room temperature and annealed sheet at 4000C has been performed. For which mechanical properties were evaluated through tensile test for all the conditions of AA6023-T6 sheet. Also, microstructure and material hardness tests were conducted by using Optical microscope and Vickers hardness (VHR) test respectively. The results of microstructure show, refined microstructure for annealed sheets at 4000C compared to sheet at room temperature. Annealing process caused reduction in material hardiness, which is acceptable value for sheets for different applications. For stretching operations, simulations were performed using limit dome height (LDH) test using PAM STAMP 2G software. During LDH test, the maximum value of LDH for annealed sheets of AA6023-T6 at 4000C and minimum value for sheets at room temperature is observed. Uniform thickness distribution for annealed blanks at 4000C is observed compared to room temperature. The room temperature stretch formability of AA6023T6 alloy sheet has 39.5 maximum dome height and annealed sheet at 4000C has 43 maximum dome heights. By which, annealed AA6023-T6 alloy sheet has good stretch formability.
Sheet Metal Forming Is A Process Widely Used In The Manufacturing Industry. There Are Several Sheet Metal Forming Processes Are Existed Including Stretch Forming Process. In This Thesis, Stretch Formability Of Aa6023-T6 Alloy Sheet At Room Temperature And Annealed Sheet At 4000c Has Been Performed. For Which Mechanical Properties Were Evaluated Through Tensile Test For All The Conditions Of Aa6023-T6 Sheet. Also, Microstructure And Material Hardness Tests Were Conducted By Using Optical Microscope And Vickers Hardness (Vhr) Test Respectively. The Results Of Microstructure Show, Refined Microstructure For Annealed Sheets At 4000c Compared To Sheet At Room Temperature. Annealing Process Caused Reduction In Material Hardiness, Which Is Acceptable Value For Sheets For Different Applications. For Stretching Operations, Simulations Were Performed Using Limit Dome Height (Ldh) Test Using Pam Stamp 2g Software. During Ldh Test, The Maximum Value Of Ldh For Annealed Sheets Of Aa6023-T6 At 4000c And Minimum Value For Sheets At Room Temperature Is Observed. Uniform Thickness Distribution For Annealed Blanks At 4000c Is Observed Compared To Room Temperature. The Room Temperature Stretch Formability Of Aa6023t6 Alloy Sheet Has 39.5 Maximum Dome Height And Annealed Sheet At 4000c Has 43 Maximum Dome Heights. By Which, Annealed Aa6023-T6 Alloy Sheet Has Good Stretch Formability.

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