Talking about what is mold accuracy?

- 2022-04-25-

The accuracy of the mold includes the accuracy of the parts obtained during processing and the quality awareness of ensuring the accuracy of the product during production, but the mold accuracy we usually talk about mainly refers to the accuracy of the working parts of the mold. 

The concept of mold accuracy can be explained in two aspects. On the one hand, it refers to the degree of conformity between the actual geometric parameters of the mold parts after machining and assembly and the design geometric parameters in mold processing; A kind of thinking mode and a kind of quality consciousness gradually formed by enterprise employees in production practice or guiding employees' production behavior.


The content of mold accuracy includes four aspects: dimensional accuracy, shape accuracy, position accuracy, and surface accuracy. Dimensional accuracy refers to the degree of conformity between the actual size of the part and the center of the tolerance zone of the part size after processing, shape accuracy refers to the degree of conformity between the actual geometry of the surface of the processed part and the ideal geometry, and positional accuracy refers to The actual position accuracy difference between the relevant surfaces of the parts after processing, and the surface accuracy mainly refers to the roughness of the surface of the parts.


How to improve the accuracy of mold processing? This problem has always been a headache for many companies. Today, the editor will take you to understand that to improve the accuracy of the mold, you must start from the following three aspects:


1. The mold knot design should be reasonable. The size of the mold must be accurate, the surface should be smooth, and the design should meet the needs of the process. Of course, the production efficiency should also be high. The most important thing is that it is easy to manufacture, long life and low cost.

2. The processing of mold parts should be precise. We should choose the appropriate machining trajectory, optimize the feed method, and select the cutting amount reasonably to reduce the number of passes and improve the productivity of the workpiece.

3. The mold assembly should be in place. The most important thing in mold assembly is the assembly sequence. Some inserts need to be installed after the pressure plate. This is the most important. During the assembly process, we must pay attention to these problems.


The precision of the mold determines the quality and efficiency of the product to a large extent, which reflects the technological level and technological content of the mold production, International competitiveness of manufacturing. According to the development of the domestic and international mold market, relevant experts predict that in the future, after my country's mold industry structure adjustment, the mold precision will be higher and higher.