The die steel material processed by Stool Mould fittings has high hardness, which requires the die processing equipment to have thermal stability and high reliability.

For complex cavities and multi-functional composite moulds, with the complexity of the shape of the workpiece, it is necessary to improve the design and manufacturing level of the mould. A multi-functional composite mould in which multiple grooves and multiple materials are formed or assembled into components in a set of moulds requires a large amount of processing and programming programs, high comprehensive cutting ability and high stability for high-depth cavities, and increases the processing difficulty.

The machining quality of stool mould accessories includes machining precision and surface quality: machining precision is the degree of conformity between the actual size, shape and position of the machined part surface and the ideal geometric parameters required by the drawings; The deviation value between the actual geometric parameters and ideal geometric parameters of parts is called machining error.

Machining accuracy and machining error are terms for evaluating geometric parameters of machined surfaces. Machining accuracy is measured by tolerance grade. The smaller the grade value, the higher the accuracy. Machining error is expressed by numerical value. The larger the numerical value, the larger the error. High machining accuracy means small machining error and vice versa. The actual parameters obtained by any machining method will not be absolutely accurate. From the function of the part, as long as the machining error is within the tolerance range required by the part drawing, the machining accuracy is considered to be guaranteed.

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