Because the mold manufacturing has the characteristics of single piece, structural uncertainty and high accuracy requirements, if it is manufactured by traditional processing methods, it will not only have a long cycle, but also the quality of the mold can not be effectively guaranteed. The emergence of data processing technology and its application in the field of mold manufacturing have solved this problem. In the manufacturing of mechanical molds, the application of NC processing technology is mainly reflected in the following aspects:
Application of NC Milling
In the machining process of mechanical molds, because the external structure in the machining process of molds is mostly plane structure, and at the same time, it is mostly concave convex surface and curved surface machining structure, so NC milling machines are widely used. NC milling machines can be used to process molds with complex outline or molds with curved surface. With the continuous development of NC machining technology, large-scale digital milling machining centers are commonly used in mold manufacturing. WEDM service has the widest application range, and it is also a typical application of NC machining technology in mechanical mold manufacturing. Now a considerable number of mold external structures are two-dimensional or three-dimensional plane structures, which are generally concave convex or composed of curved surfaces. Therefore, NC milling technology must be used to complete the machining. For example, the surface or plane of various complex shapes can be machined by NC milling, and some molds with complex shapes can also be machined, such as die casting mold, injection mold, etc.
Application of NC turning
Generally speaking, NC turning is mostly used to process shaft standard parts, such as various rod parts, including center and guide column, which can be used for the manufacturing and processing of rotary molds, such as injection molds of outer round and inner round pots, forging molds of shaft and disc parts, punch of stamping molds, etc. Because NC turning can effectively improve the position accuracy and position accuracy, which is unmatched by traditional lathes, it can be applied to the processing of mechanical mold standard parts and various rod parts. In addition, NC turning can process parts with different surface roughness requirements. Most of these parts are rotary bodies, so NC turning can be used to process forging dies.
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Application of NC cutting
NC EDM is mostly used for rapid prototyping, which has high machining accuracy and relatively low programming difficulty. The amount of NC EDM is higher than that of fine and complex shapes, special material molds, plastic inlay cavities and inserts, and molds with special-shaped grooves. In the case of general NC cutting, through the WEDM Process on the NC machine tool, we can process all kinds of straight wall molds or some molds with complex shape, special materials and special-shaped grooves. The processing technology is often used for the processing of straight wall dies, such as concave convex die in stamping die, insert block and slider in injection mold, electrode for EDM, etc.
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