Investigation of Materials Processing Technology

摘要

This report summarizes the work performed in materials processing research overthe 45-month period from April 1989 through December 1992. The research work included projects on measuring-the interface heat transfer coefficient in casting, predicting macro-segregation in casting, hot extrusion of TiAl alloy, canned extrusion of TiAl with core insulation, visioplasticity study of 6061 Al, cold rolling of Bi-based superconductor, and die design and process modeling of Mg+B4C alloy. The processing work in the Processing Laboratory included 2,357 extrusion, forging, rolling, vacuum arc melting, vacuum induction melting, and evacuation/outgas operations. The Processing Laboratory was also relocated as part of this program and the 700-ton Lombard extrusion press was completely rebuilt and modernized. Extrusion, Forging, Rolling, Casting, Pack rolling, Data acquisition, Insulated can extrusion, Process Modeling, Visioplasticity, Press instrumentation.