Laser restoring method of aircraft engine cylinder body
An aircraft engine and laser repair technology, applied in the field of laser repair, can solve the problems of irreparable, deep depth and high production cost, and achieve the effects of dense cladding layer and interface structure, improved wear resistance and fine grain size
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[0015] It can be seen from the drawings that when the inner cavity A of the aircraft engine block is unusable due to wear, a specific laser process can be used for cladding to repair the worn parts, and then use mechanical processing to restore its geometric dimensions. Heat treatment can obtain a reusable engine block. The specific repair method is as follows:
[0016] (1) Use mechanical processing methods to remove the fatigue layer of the part to be repaired in the inner cavity of the cylinder to reach a state suitable for laser repair, and then perform coloring flaw detection to ensure that the fatigue layer is completely removed;
[0017] (2) Prepare the alloy powder, the particle size of the alloy powder is 50-150μm, and the composition (wt%) is: C: 0.1-0.2, Cr: 14-20, Ni: 2-6, Mn: 0-1.5, Mo: 0.5~1.5, W: 0~2.5, Si: 1.5~2.5, B: 2.0~3.0, the remainder is Fe;
[0018] (3) Use a focusing lens to guide the laser beam into the cylinder cavity, and simultaneously send the alloy powd...
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