CAD ON PLATE METAL LOFTING OF CYLINDERS PENETRATING QUASI-SPHEROIDS

The 30T(x) function of extended surface of a cylinder penetrating a quasi - spheroid (cone, ellipsoid, quasi-ellipsoid) is deduced. The lofting method by means of a programmable calculator applied to plate metal processing workers is also introduced in this paper. In addition, a program designed for PC-1500 computers, being capable of drawing up the extended surfaces, is listed at the end of the paper.