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推导出激光熔覆过程中粉末有效利用系数表达式 ,并利用金相法检测的相关参数对粉末有效利用系数进行了计算。结果表明 :单位时间、作用时间、单位长度熔覆层粉末有效利用系数具有相同的方程形式 ,均随扫描速度的增加而增大 ,随送粉速率的增大而增大
The expression of effective utilization coefficient of powder during laser cladding is deduced. The effective utilization coefficient of powder is calculated by the relevant parameters detected by metallographic method. The results show that the effective utilization coefficient of cladding powder per unit time, action time and unit length has the same equation form, which increases with the increase of scanning speed and increases with the increase of powder feeding rate