The relationship between the hardness and wear resistance of diamond segment

The diamond segment is sintered under high temperature and high pressure after mixing diamond particles and metal powder. Its hardness and wear resistance are its important performance indicators. The hardness of a diamond segment refers to its resistance to external objects, while the wear resistance refers to its durability during use.

The reason why the diamond segment has extremely high hardness is due to the extremely high hardness of the diamond particles contained in it. Diamond is one of the hardest substances known so far, with a hardness value of 10, much higher than other common materials. During the production of diamond segments, diamond particles are mixed with metal powder and sintered, resulting in an extremely hard material. Therefore, the diamond segment can easily cut materials of various hardnesses, and at the same time has extremely high wear resistance.
However, the hardness of the diamond segment is not as high as possible. Excessive hardness will cause the segment to break and wear easily during use. At this time, appropriately reducing the hardness can increase the toughness and durability of the segment. Therefore, a balance between hardness and toughness is required in the manufacture of diamond segments. How to balance the toughness and hardness of the diamond segment? There are several ways:

Reasonable ratio of diamond particles, metal powder and binder
When manufacturing diamond segments, it is necessary to select appropriate diamond particles, metal powders and binders according to different usage requirements and environments, and make a reasonable ratio. Appropriately adding metal powder can increase the toughness of the segment, and appropriately increasing the content of binder and diamond particles can increase the hardness. Therefore, choosing an appropriate ratio can balance the hardness and toughness of the segment.

Optimizing the sintering process
The sintering process of the diamond segment also has a great influence on the balance of hardness and toughness. The balance between hardness and toughness can be achieved by controlling parameters such as temperature, pressure and time in the sintering process. For example, appropriately lowering the temperature and pressure during the sintering process can increase the toughness of the segment, while appropriately increasing the temperature and pressure can increase its hardness.

Optimizing the size distribution of diamond particles
The size distribution of diamond particles also affects the hardness and toughness of the segment. If the size difference of the diamond particles is too large, voids and cracks are prone to appear, reducing the toughness of the segment. Therefore, when preparing a diamond segment, it is necessary to control the size distribution of diamond particles, and choosing an appropriate particle size can balance the hardness and toughness of the segment.

Optimizing segment design and manufacturing process
The design and manufacturing process of the segment also has an influence on its balance between hardness and toughness. By optimizing the structural design and manufacturing process of the segment, its toughness and hardness can be improved, and the relationship between the two can be balanced.
Compared with the hardness, the wear resistance of the diamond segment is more critical. Wear resistance refers to the durability of the diamond segment during use, which is related to the hardness, composition, sintering process and other factors of the segment. Generally, the higher the hardness of the diamond segment, the higher its wear resistance. At the same time, the composition and sintering process of the diamond segment will also affect its wear resistance. For example, adding an appropriate amount of binder to the diamond segment can improve its wear resistance, while too much binder will reduce its wear resistance.

To sum up, the hardness and wear resistance of the diamond segment are closely related and need to be considered comprehensively during the manufacturing process. Only by striking a balance between hardness and wear resistance can the diamond segment have excellent cutting performance and durability to meet various processing needs.