The head of the Arizona Technology Council says it’s looking like the state could become a leader in the emerging high-tech field of additive manufacturing. That optimism is driven in part to advances being achieved by researchers at Arizona’s state universities. Dhruv Bhate, a Fulton Schools associate professor, is doing research to improve 3D metal printing. Some of his work is aimed at making an array of metal components that are lighter but still strong enough to be used in aerospace and defense industry applications.