US Patent 7353581 Method for manufacturing archery risers

In a preferred embodiment of the present invention, a riser for an archery bow is manufactured by providing a flat workpiece, forming the flat workpiece to a pre-bent profile of an archery riser, placing the flat workpiece in a press, and bending the flat workpiece to a desired non-flat shape of the archery riser. Preferably, the flat workpiece is an aluminum sheet in a T4 aluminum condition. Further, after the non-flat shape is created, the riser can optionally be cured to a T6 aluminum condition, a less soft condition.