An in-process method for the inverse estimation of the powder catchment efficiency during laser cladding

Environmental comparison of MESO-CLAD® process and conventional machining implementing life cycle assessment

“…Owing to this PCE, which take powder recycling rate into account, both surface roughness and processing time are improved and production velocity reaches values ranging from 2 to 10 cm 3 h À1 . For comparison, the most efficient technologies at the present time have a PCE of 20% (without taking account of powder recycling rate), which corresponds to a production velocity ranging from 0.6 to 3 cm 3 h À1 (Lin and Steen, 1998;Fathi et al, 2007). All energy consumption data during the process are tabulated in Table 2.…”

Research on molten pool temperature in the process of laser rapid forming

“…However, the influences of the processing parameters on the thermal behavior and the relationship between the molten pool temperature and the cladding geometric sizes have not been investigated systematically. Lin et al (Lin and Steen, 1998) measured the temperature of the formed layer by an IR pyrometer and estimated the powder efficiency through an inverse calculation of the boundary temperature obtained from observed surface temperature. Although lots of studies on real-time monitoring have been reported, the present understanding of the thermal behavior during LRF still mainly depended on numerical simulation.…”

A Review on Process Monitoring and Control in Metal-Based Additive Manufacturing

“…The research was also filed as patent [128]. There have been also numerous research methods [131][132][133][134][135][136][137][138] that used pyrometers to monitor and analyze the melt pool or the process zone and infer conclusions about different parameters such as variation in standoff distances or laser defocusing. There have been also numerous research methods [131][132][133][134][135][136][137][138] that used pyrometers to monitor and analyze the melt pool or the process zone and infer conclusions about different parameters such as variation in standoff distances or laser defocusing.…”