experimental and numerical investigation on the heat treatment effects of aa6063 aluminum alloy tubes during rotary draw bending

In this study, the effects of heat treatment of aluminum alloy on the tube bending process were investigatedin the rotary draw bending process. as two experimental and numerical simulation methods were used to determinethe wall-thinning, ovality, and spring back for extruded, annealed, and aged aa6063 aluminum alloy tubes indifferent bending angles and bend radii. numerical simulations were done by the finite element method with abaqussoftware. the results indicated that in comparison with annealed and extruded parts, wall-thinning reduced whereasthe amount of ovality and spring-back increased in the aged tubes. also, in each case, the percentage of wallthinningdecreased with increasing bend radius, and the effect of bend radius was greater in the reduction of ovalityfrom the bending angle. investigations showed that the spring-back rate also decreased with an increasing bending angle.