A study on plate forming model in spray forming precess.

Title
A study on plate forming model in spray forming precess.
Authors
석현광여동훈오규환나형용이호인
Keywords
분무성형법; 판상성형체; 성장기구 모델링
Issue Date
1995-01
Publisher
대한금속 . 재료학회지; J. of the Korean Inst. of Met. & Mater
Citation
VOL 33, NO 3, 406-413
Abstract
Using numberical method, the work condition to make a plate preform in Spray Deposition Method has been optimized in this study. In this calculation we have used the assumptions that spray density is represented by Gaussian funtion and surface grows to normal direction and droplet flys from orifice to calculation points on the preform surface. We proposed two methods to make plate preforms by spray forming process, In each method the nozzle control function is derived as ; Method I ω(θ)=G·v·sinθ_(max)·√b·cos²(θ) Method II ω(θ)=G·v·sinρ_(max)·√b·1/cos(ρ) In these equation v is the substrate velocity, b is spray density constant, θ is the angle between spray axis and z-axis, and ρ is the angle between spray axis and y-axis. The simulation suggests that the constant G must be larger than 3 to make plate without surface modulation.
URI
http://pubs.kist.re.kr/handle/201004/11412
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