A new structure of side powder feeding nozzles for extreme high-speed linear laser material deposition was designed. In this structure, the spatial concentration distribution of powder flow is controlled by multi-channel cylindrical beam splitting and conical rectifier. The turbulent and discrete phase models were used to study the flow field and powder distribution under the conditions of specific carrier gas flow rate and powder size. The results show that the powder feeding shaping structure can realize the powder flow linear and uniform distribution. Besides, it is proved that the prepared cladding layer has good surface quality through the experimental investigation.
Inner-surface laser cladding method has great potential on industry communities. A novel RILC (Rotatable Inner-surface Laser Cladding) equipment was developed to prepare inner-surface cladding layer for heavy or asymmetric work piece. Wear resistance cladding layer was prepared onto the inner-surface of aluminum cylinder by RILC method. The cladding layer greatly increased the hardness of inner-surface, and exhibited high wear resistance and relatively low friction coefficient based on pin-on-disk wear test. Thermocouples were applied to study the thermal cycling of the substrate during cladding process.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.