A New Process CAD Design Method for Steel Casting Based on PDF File

Abstract

The process CAD design is the key part for steel casting production in general foundry enterprises. Formerly, for those parts with PDF file from customers, especially foreign customers, the process CAD design was done just by 2D casting process CAD system depending on AutoCAD system; so the designer must spend much time drawing part by AutoCAD according the PDF file which cause low efficiency. In this paper, a new process CAD design method is proposed based on PDF file in order to avoid drawing part by AutoCAD. Fist, the framework of process CAD design is constructed. Second, as the base part of process CAD design, the practical 2D CAD frame is established. Third, the part drawing with PDF file is resolved to be displayed clearly through the Mupdf rendering engine. Finally, the casting processes design of two actual steel castings, including a pump cover casting and a large gear casting, are presented to illustrate this new process CAD design method.