The casting structure of a large scale horizontal machine tool bed was introduced.The problems existing with traditional wood pattern manual molding process was improved.By using wood pattern plate+3D-printing sand cores,the problems such as sand inclusion,poor dimensions stability was solved.Finally it was pointed out:(1)Using 3D-printing process to produce sand cores could optimize sand cores quantity,solve the difficult mold parting problem with manual sand cores,effectively avoid sand inclusion in cores setting process,and thereby ensure casting quality.(2)Using 4 m printing machine horizontal slice process could further optimize cores quantity,elevate casting quality and production efficiency,reduced operation difficulty in casting process,elevated cleaning efficiency,reduced cleaning cost.
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