Measurement and Analysis of Shot Velocity in Pneumatic Shot Peening.
Measurement and Analysis of Shot Velocity in Pneumatic Shot Peening.
复制标题
气动喷丸中喷丸速度的测量和分析。
DOI：
10.1299/kikaic.60.1120
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发表时间：
1994
期刊：
影响因子：
--
通讯作者：
Hideo Aihara
中科院分区：
文献类型：
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作者：
K. Ogawa;T. Asano;A. Saito;K. Kawamura;M. Ogino;Hideo Aihara
对两台气动喷丸机的喷丸速度进行了实验和理论研究。通过高速快门电视摄像机测量了各种操作条件下的拍摄速度。结果表明，在通常的弹丸直径D、弹丸密度p和气压p的范围内，弹丸速度与公式V=K·Dα·ρβ·（p+pb）γ有关，其中Pb是大气压。α和β几乎与喷丸机无关，α a 0.36，β a 0.48，K和γ与喷丸机有关。另一方面，基于流体力学的理论考虑与公式的推导有关，对于吸入式机器，V=K·D-0.44·ρ-0.44·（p+pb）0.43，对于直压式机器，几乎相同的公式。理论推导的公式与实验推导的公式吻合较好。
The shot velocity in two pneumatic shot-peening machines has been examined by means of experiment and theory. The shot velocity was measured under various operating conditions by a high-speed shutter TV camera. As a result, the shot velocity over the usual range of shot diameter D, shot density p, and air-pressure p was related by the formula, V=K·Dα·ρβ·(p+pb)γ, where Pb is atmospheric pressure. α and β are almost independent of the shot-peening machine, and α a 0.36, β a 0.48, K and γ are dependent on the shot-peening machine. On the other hand, the theoretical consideration based on hydrodynamics tied to the derivation of the formula, V=K·D-0.44·ρ-0.44·(p+pb)0.43 for the suction type machine, and almost the same formula for the direct-pressure type. The theoretically derived formula coincided well with the experimentally induced formula.