Why does the cemented carbide top hammer need to have good fatigue resistance?
Publish Time: 2025-03-21
The cemented carbide top hammer needs to have good fatigue resistance mainly based on the following reasons:1. Complex and changeable working environmentThe cemented carbide top hammer works in a high-pressure and high-temperature environment such as artificial diamond synthesis, and will experience repeated pressure, pressure relief, heating, cooling and other alternating stresses. This complex and changeable working environment requires the top hammer material to have excellent fatigue resistance to cope with the ever-changing stress conditions.2. Stress concentration and crack propagationIn the process of synthetic diamond, the cemented carbide top hammer may cause local stress concentration due to defects in the material or manufacturing process (such as uneven grain size, structural defects, holes, cracks, etc.). These stress concentration points are easy to become the source of crack initiation, and gradually expand under the action of alternating stress, eventually leading to the destruction of the top hammer. Therefore, good fatigue resistance helps the top hammer resist the expansion of these cracks and prolong its service life.3. Ensure synthesis efficiency and qualityThe performance of cemented carbide top hammer directly affects the synthesis efficiency and quality of artificial diamond. If the fatigue resistance of the top hammer is insufficient, it is easy to cause premature damage, which will not only increase the frequency and cost of replacing the top hammer, but also affect the synthesis efficiency and product quality of diamond. Therefore, having good fatigue resistance is one of the key factors to ensure the stability and efficiency of the diamond synthesis process.4. Improve economic benefits and competitivenessFrom the perspective of economic benefits, the good fatigue resistance of the cemented carbide top hammer means a longer service life and lower replacement frequency, which helps to reduce production costs and improve the economic benefits of the enterprise. At the same time, in the fierce market competition in the diamond synthesis industry, cemented carbide top hammers with excellent performance are also one of the important means for enterprises to enhance their competitiveness.The cemented carbide top hammer needs to have good fatigue resistance to adapt to complex and changeable working environments, resist stress concentration and crack propagation, ensure synthesis efficiency and quality, and improve economic benefits and competitiveness.
