| 摘要 |
PURPOSE: A heating apparatus for roll-bending of a titanium alloy sheet and a method for roll-bending a titanium alloy sheet using the same are provided to minimize spring back of a titanium alloy sheet during a roll-bending process by employing the characteristic of the titanium alloy sheet that the yield strength is reduced and the plastic deformation region is extended when the titanium alloy sheet is heated at a specific temperature range. CONSTITUTION: A heating apparatus for roll-bending of a titanium alloy sheet comprises heater assembly(10), a vertical driving unit(20), a rotary hinge(25), a rotating unit(30), a base member(40), and a control unit. The heater assembly comprises a plurality of heater units(11) that heat a titanium alloy sheet to a temperature range where no oxide film is formed. The vertical driving unit moves the heater assembly up and down. The rotary hinge is installed at the connection part between the heater assembly and the vertical driving unit and allows the heater assembly to rotate. The rotating unit rotates the heater assembly in a specific angle range. The base member includes a rotary support bracket(45) in which the vertical driving unit is vertically installed and which is coupled with the bottom of the rotating unit. The control unit controls the vertical driving unit and the rotating unit and includes a temperature controller for controlling the temperatures of the heater units. |
