喷射流的变化对喷丸强度的影响

Influence of Shot Stream Change on Shot Peening Intensity

摘要: 强度是影响喷丸效果的一个重要因素，而喷射流的改变是强度变化的决定因素。喷射流的不同导致了丸粒平均喷射强度的不同。造成这种差异的主要原因很容易理解，取决于：丸粒型号，速度和密度。这些参数中任何一个值的独立增加都将会使平均喷射强度增加。这种强度的增加对于一个单独的某一时间的喷射流是很好理解的，然而在不断的，持续喷射的情况下，作为一个变量时这种可变性会让人觉得难以理解。通过研究分析得出结论，这种喷射强度的可变性源于饱和曲线,它取决于三大因素：位置，角度和时间。在任何喷丸强化处理的过程中必需对每股喷射流，从位置，角度，和时间上进行严格控制。

Abstract: Intensity is playing a key role in shot peening process, and the change of shot stream is the decisive factor for intensity change. Different shot stream causes the different value of average peening intensity. The main reason for this difference is very easy to understand, depends on: the shot size, shot speed and shot density. Increasing any single value of these parameters will lead to the increase of the average peening intensity. This increase is well understood for a single shot stream on every independent time, but as a variable, this variability is difficult to understand when have the continuous shot peening. Actually, this variability derived from the saturation curve, it depends on three factors: position, angle and time. Strictly control this three factors is necessary for any shot peeing process.