The effect of different mould base parts materials on mold performance, cost and service life

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In the mold manufacturing industry, the mould base parts are the core elements of the mold, and the material selection is directly related to the performance, cost and service life of the mold. These key components, such as mold frames, fixed plates, bottom plates, etc., not only need to withstand high temperature and high pressure working environment, but also need to ensure the accuracy and consistency of the product. Therefore, in-depth exploration of the commonly used materials of the mould base parts, such as steel and aluminum alloy, is of great significance for improving the overall quality of the mold.

Steel: Tradition and preference of mould base parts
Steel, as widely used materials in the mould base parts, is known for its high strength, high hardness, good wear resistance and heat resistance. In mold manufacturing, different types of steel can meet different use needs. For example, cold work die steel such as Cr12MoV, because of its great hardenability and wear resistance, is often used to make cold die punch and die; Hot work die steel such as 5CrNiMo, because of its good thermal fatigue resistance and high temperature strength, become the choice of hot forging die and die casting die.

The use of steel can significantly improve the durability and accuracy of the mold and extend the service life of the mold. However, its relatively high cost is also a factor that cannot be ignored. At the same time, the processing difficulty and heat treatment requirements of steel are also high, requiring advanced processing equipment and strict process control. In spite of this, steel is still mature and reliable materials in the mould base parts.

Aluminum alloy: a lightweight and cost-effective option
With the increasing demand for lightweight, energy saving and emission reduction in the manufacturing industry, aluminum alloy has gradually attracted attention as an alternative material for the mould base parts. Aluminum alloy has the advantages of low density, good thermal conductivity, easy processing, etc., which reduces the overall weight of the mold, helps to improve production efficiency and reduce energy consumption. In addition, the cost of aluminum alloy mold is relatively low, which is conducive to reducing manufacturing costs and improving economic benefits.

However, aluminum alloy molds also have some limitations. Due to the relatively low hardness and strength of aluminum alloy, its wear resistance and high temperature resistance are not as good as steel, so it may not be suitable in some application scenarios that require very high mold performance. In addition, aluminum alloy molds are vulnerable to corrosion and wear during use, requiring regular maintenance and replacement, which also increases the cost of use.

The effect of different materials on mold performance, cost and service life
Comprehensive comparison of the application of steel and aluminum alloy in the mould base parts, we can find that: steel with its great performance has become the preferred material for high-end molds, especially in the case of mold accuracy, durability and life requirements; Aluminum alloy, with its lightweight, low cost and easy processing characteristics, occupies a place in the low-end mold market.

In practical applications, the material selection of the mould base parts should be weighed according to the specific needs. For molds requiring high precision, long life and high load capacity, steel is undoubtedly the suitable choice; For some occasions with relatively low mold performance requirements and the pursuit of cost effectiveness, aluminum alloy may become a more suitable choice.

In short, the material selection of the mould base parts is a crucial part of the mold manufacturing. Through in-depth analysis of the performance characteristics and application scenarios of different materials, we can provide a more scientific and reasonable material scheme for mold design, so as to further improve the overall quality and use efficiency of the mold.