| abstract |
A tortoise shell bionic curved surface block mesh bimetal repair structure, comprising: a shape-compliant additive layer, the shape-compliant additive layer is formed by splicing a plurality of blocks, and the blocks include internal hard filling blocks and the boundary gap soft filling frame, the block boundary gap soft filling frame is a border with a width d offset inward from the boundary of the block, and the inner part of the boundary gap soft filling frame is an internal hard filling block; The preparation method includes: step 1, acquisition of the surface to be repaired; step 2, discrete blocks of the surface to be repaired; step 3, shape-conforming additive trajectory planning of the surface; step 4, conformal additive repair; step 5, intra-block Area conformal additive; Step 6, block gap area conformal additive filling; Step 7, heat treatment, machining. This design can not only achieve strong and tough coupling, effectively prolong the service life of parts, but also adapt to the differentiated performance requirements of different regions, and has a wide range of applications. |