lts show that the three stage sinking bridge design can promote the formability of complex profiles. At the same time theР - ꎬРratio of Si and Mg elements in the alloy is adjusted the ingot temperature is controlled between ℃ and ℃ and theР 6063 ꎬ 470 500 ꎬРproduct speed is set between . m / min . m / min. The air cooling quenching method had a significant effect on improving theР 4 0 ~ 4 5Рformability and dimensional accuracy of the profiles.РKeywords alloy mold extrusion process formabilityР : 6063 ꎻ ꎻ ꎻ