Using 45# steel as matrix material, the laser bead welding experiment is proceeded by adding transition alloy cladding layer and choosing special welding wire in the case of no proheating.
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释义
通过采用45%23钢基体材料,在不预热情况下增加过渡合金熔覆层,再选用专用的高硬度焊丝进行堆焊实验;
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