First, talk about equipment. As the saying goes, if a worker wants to do a good job, he must sharpen his tools first. Generally, he uses imported injection mold processing equipment.
The second point is the requirement for technicians. The precision of injection mold processing is not only better than the equipment, but also better than the user's level.
Then there is the core part, the degree of conformity between the actual size, shape and position of the surface of the part processed by the injection mold and the ideal geometric parameters required by the drawing. Machining accuracy is measured by tolerance grade, and the smaller the grade value, the higher its accuracy; The machining error is expressed by numerical value, and the greater the numerical value, the greater the error.
High machining accuracy means small machining error, and vice versa. The ideal geometric parameter of size is average size; For surface geometry, it is an absolute circle, cylinder, plane, cone, straight line, etc. For the mutual position between surfaces, it is absolutely parallel, vertical, coaxial and symmetrical. The deviation between the actual geometric parameters and the ideal geometric parameters of a part is called machining error.