The use of granite components in Coordinate Measuring Machines (CMM) has become increasingly popular in recent years due to its unique features. Granite is a natural stone that is composed mainly of quartz, feldspar and mica. Its properties make it an excellent choice for use in CMMs as it has characteristics that other materials cannot compete with. In this article, we will discuss some of the unique features of high-quality granite compared to other materials in the application of CMM.
1. High dimensional stability
Granite is known for its high dimensional stability. It is unaffected by temperature changes and has a low coefficient of thermal expansion. This means it is able to maintain its shape and size under different temperature conditions, which is essential for accurate measurements. Unlike other materials, granite does not warp or deform, ensuring high precision at all times.
2. High rigidity
Granite is an extremely hard and dense material, and this gives it high rigidity. Its hardness and density make it resistant to wear and tear, making it ideal for use in high-precision applications. Its ability to absorb vibration also makes it an excellent choice as it does not affect the accuracy of the measurements.
3. Smooth surface finish
Granite has a smooth surface finish, making it ideal for contact measurement systems. Its surface is polished to a high level, reducing the possibility of scratches or dents that could affect the accuracy of measurements. Additionally, its surface finish enables easy cleaning and maintenance, making it convenient to use in a metrology lab.
4. Low Thermal Conductivity
Granite has a low thermal conductivity which results in low-value thermal changes when exposed to higher temperatures. This property helps in maintaining the dimensional stability of the granite, even when exposed to higher temperatures.
5. Long-lasting
Granite is a hard and durable material and is resistant to corrosion and wear and tear. This means that a granite component in a CMM can be used for a long time without any degradation in its performance. The long lifespans of granite components reduce the need for frequent repairs or replacement, making them a cost-efficient solution for a CMM.
In conclusion, the unique properties of granite make it an excellent material to use in Coordinate Measuring Machines. High dimensional stability, high rigidity, a smooth surface finish, low thermal conductivity, and durability are the key features that make granite stand out from other materials. By using granite components in CMMs, users are assured of highly accurate and repeatable measurements, reducing the errors and increasing the productivity of their lab.
Post time: Apr-09-2024