Due to the poor working conditions in the oil well, many downhole tools bear loads for a long time and are used under the conditions of corrosion and wear, resulting in their premature failure and destruction, thus shortening their life. For example, the journal, wheel disc, sleeve, bearing bush, oil drill collar, etc. of large rotors, however, the price of these parts is often very expensive, involving many kinds of parts, complex shapes, and large differences in working conditions. Stopping production for overhaul and replacing parts not only increases material costs, but also affects oil field production and brings losses in many aspects. Most oil drilling and production industries will use laser cladding technology to prepare and repair the hard coating in the wear area of large parts, which does not require preheating, and the subsequent processing volume is small, which shortens the repair cycle, improves the surface hardness, corrosion resistance and wear resistance of the work-piece, and greatly improves the service life of the parts.
Laser Cladding Additive Repair of PDC Drill Bit⇒Laser Cladding of Oil Drilling Tools