In oil, gas and geological exploration drilling engineering, drill collars are oil drilling tools often used for drilling. Therefore, the impact resistance, toughness, wear resistance and corrosion resistance should be ensured during the use of drill collars. The sprayed layer made by the traditional spraying method is mechanically combined with the matrix, so peeling is often caused when used in environments with large impacts.
Laser cladding technology has been successfully applied to oil drill collar repair and remanufacturing products, which greatly reduces the scrap rate of products and saves a lot of use costs.