R. Z. Huang, Plasma Giken Co. Ltd., saitama prefecture, Japan; B. Sun, H. Fukanuma, Plasma Giken Kogyo co., ltd, Saitama, Japan; N. Ohno, Plasma Giken Co. Ltd., Toda, Japan
Cold spray is a relatively recent coating technology, where coating can be formed only when the velocity of in-flight particles exceeds critical velocity. Therefore, the particle velocity at impact is the most important factor in cold spray process. In the present study, a DPV-2000 system was utilized to measure the velocity of in-flight particles. The effects of the pre-setting values of software parameters on the measured results of velocity of particles were investigated. It was found that the pre-setting values of software parameters influenced on the accuracy of measured results of velocity of in-flight particles.
Summary: The in-flight particle diagnostic system, DPV-2000 system was utilized in cold spray process. The measurement accuracy of particle diameter are relatively low because of the simply calculate principle for scattering light. The soft parameters of DPV-2000 system have relatively significant influence on the number of good particles, respectively. Large number of good particles is necessary to measure particle velocity accurately.
