AFS has announced that the CastExpo trade show and convention will be held in Columbus on April 23-26. The Buckeye State last hosted this once-every-three-years industry event in 1974, when it was held in Cleveland. “Metalcasting is a $44 billion industry, producing highly engineered castings that are essential to our daily life,” said Doug Kurkul, the organization’s CEO. “Everything from aerospace and…