According to the physics process of powder feed laser cladding, the basic problems are brought up that must be considered in the numerical model for that process.

根据送粉式激光熔覆的物理过程，提出了送粉式激光熔覆数值模型必须考虑的基本问题。

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The influence of laser power, scanning speed, powder feed rate, spot diameter and preheating on the temperature of molten pool were revealed in the process of single-pass cladding.

在单道熔覆中通过跟踪测量研究了激光功率、扫描速度、送粉速率、光斑直径和基体预热温度对熔池温度的影响规律。

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According to the present status of laser cladding powder feed unit, in order to solve the problem of powder feeding uniform, stabilization, a new powder feed unit is developed.

针对当前各种喷焊、熔覆中输料所用送粉器的现状，为解决其中送粉均匀、稳定的问题，研制了一种新型磁力送粉器。

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