Hardware mold manufacturing characteristics
Release time: 2023-05-23
Hardware mold manufacturing can design corresponding molds according to different product characteristics and needs. Different mold structure and function are different, and the products produced are different. Today, Xiaobian will tell you about the characteristics of hardware mold manufacturing and the relevant knowledge of processing accuracy and error.
1, production efficiency within a unit of time to complete the number of parts or engineering content than the general processing method is several times higher, even hundreds of times. In addition, the hardware mold manufacturing technology can be used in the mold concentration of multi-piece, multi-process content combination processing, further improve the production efficiency.
2, stable product quality, good exchange, the use of metal stamping molding products, less factors affecting product quality change, low risk. Some factors can be taken appropriate measures to correct, product quality management in the ideal range to ensure the stability of quality, can effectively ensure its exchangeability. Good exchangeability is the basic guarantee of mass production of assembly line. At the same time, it is also conducive to the maintenance and replacement of products.
3. High material utilization rate can improve the utilization rate of materials and reduce the material cost of products by crossing, tilting, multi-row, mixing, stacking, and even stacking without waste.
4. The material does not need heating. Usually, no heating material is required during the manufacturing of hardware molds. This can not only save energy, reduce heating equipment and site occupation, but also prevent the product surface oxidation and deformation caused by heating furnace shape and size instability. In addition, it can prevent the adverse effect of temperature rise on the mold.
5, the stamping mechanical performance is improved, affected by the metal stamping hardening phenomenon, the stamping surface microstructure is dense, the hardness and wear resistance are increased, the stamping strength and stiffness are also improved.
Precision and error of metal mold manufacturing are the terms of evaluating surface geometric parameters. Machining accuracy is measured by tolerance grade. The smaller the grade value, the higher the accuracy. The machining error is expressed in numbers, and the larger the number, the larger the error. High machining accuracy, small machining error, and vice versa. The actual parameters obtained by machining method are absolutely inaccurate. In the function of a part, machining accuracy is considered to be guaranteed as long as the machining error is within the tolerance required in the part drawing.
Position accuracy: represents the difference of actual position accuracy of parts between machined surfaces. Controlled by position tolerances, position tolerances for each item are also divided into 12 accuracy levels.
The relationship between dimensional accuracy, shape accuracy and position accuracy of mold accessories: usually in the design of machine parts and the processing accuracy of the specified parts, attention should be paid to the shape error control in the position tolerance, the position error should be less than the dimensional tolerance.