Laser Quenching equipment
Perform phase transformation hardening treatment on the metal surface to improve the hardness, wear ...
Perform phase transformation hardening treatment on the metal surface to improve the hardness, wear ...
Used for surface strengthening, repair, and remanufacturing of components, the coating has high adhe...
Flexible processing of complex curved sheet metal parts, with high cutting accuracy, fast speed, and...
Specially designed for seamless welding of precision plastic components, with a small heat affected ...
During the drilling process, the bearing housing and drill bit body of roller cone bits and PDC bits need to continuously rub against the wellbore rock, for which wear-resistant bands need to be welded. Traditional oxyacetylene flame spraying welding of tungsten carbide particles has problems such as low bonding strength, large thermal damage to the substrate, and severe tungsten carbide burning. Laser cladding technology has become a new generation of wear-resistant belt preparation process due to its high energy beam and low heat input characteristics.
The core of process optimization lies in the precise control of multi pass overlap rate. Using a high-frequency fiber laser, nickel based/iron-based alloy is mixed with spherical cast tungsten carbide particles and synchronously fed into the melt pool. By adjusting the laser power, scanning speed, and overlap rate (usually 40% -50%), it is ensured that each cladding layer is fully melted and metallurgically bonded to the substrate, while tungsten carbide particles are uniformly dispersed without burning or precipitation.
The optimized wear-resistant belt has no pores or cracks, and its macroscopic hardness is as high as HRC 58-65. On site drilling data shows that the use of laser cladding wear-resistant belt drill bits can increase the footage life by more than 50% compared to traditional processes, effectively reducing the number of trips and lowering the overall drilling cost.
