TG355.34
推导了ＣＮＣ弯管机上由ＸＹＺ坐标到ＰＲＢ坐标的转换计算公式，建立了弯管机加工过程图形模拟的计算模型，并编制了相应软件。
Some conversion calculation formulas from the XYZ axises to PRB axises of CNC Pipe Bender are set up.The calculation model of graph simulation about moving process of Pipe Bender is set up.Finaly a CAD software is programmed.
倪霖 张湘伟.弯管机工程CAD中的转换计算及图像模拟[J].重庆大学学报,1997,20(5):33-38.