Along the cladding direction, plastic tension strain appears which is the main cause of cladding layer cracking.
熔覆层材料沿熔覆方向发生的塑性拉伸变形，是造成熔覆层开裂的主要原因。
The analysis results also show that enhancing preheating temperature is an effective way to avoid cladding layer cracking.
提高基体预热温度可有效避免熔覆层开裂。
Some suggestions of resolving the problem of cracking in laser cladding layer were propounded.
对解决熔覆层开裂问题提出了一些建议。
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