Advances in the modeling of laser direct metal deposition
نویسندگان
چکیده
منابع مشابه
Component repair using laser direct metal deposition
Recent studies have indicated that laser direct metal deposition can be used for repairing deep or internal cracks and defects in metallic components. In order to implement the method, it is necessary to machine a groove or slot to the depth of the defect and refill it. This work investigates advantages and potential problems with the technique and compares the results from using two different ...
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In the current economic situation, with a liberalized and worldwide trade, the weight of time and costs reduction for developing new products increases. In particular, the tooling processes, which are already expensive and time consuming, recently became a critical trouble. The geometric complexity, the number of variants and the amount of requirements that characterize the products that are re...
متن کاملDirect Deposition of Metal Film Patterns Using Nitrogen Laser
Rhenium, gold and platinum film micropatterns were obtained by the LCVD method on the surface of silicon and glass substrates from vapors of R ~ z ( C O ) ~ ~ , (CHg)~Au(dpni), P t ( l~fa)~, respectively. The heated reaction chamber at atmospheric pressure with a flow of an inert gas-carrier was used. The high marginal sharpness and the thickness uniformity of deposited films was provided by th...
متن کاملDirect simulation Monte Carlo modeling of e-beam metal deposition
Three-dimensional direct simulation Monte Carlo ͑DSMC͒ method is applied here to model the electron-beam physical vapor deposition of copper thin films. Various molecular models for copper-copper interactions have been considered and a suitable molecular model has been determined based on comparisons of dimensional mass fluxes obtained from simulations and previous experiments. The variable hard ...
متن کاملThe Effect of Powder Recycling in Direct Metal Laser Deposition on Powder and Manufactured Part Characteristics
A potential way of improving the material efficiency and cost effectiveness of the Direct Metal Laser Deposition (DMLD) process is to take powder that is not utilised in each deposition attempt and re-use it in subsequent attempts (powder recycling). Currently, this is not widely implemented for fear of a detrimental effect on part quality. This study examines how powder recycling, using simple...
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ژورنال
عنوان ژورنال: Journal of Laser Applications
سال: 2015
ISSN: 1042-346X,1938-1387
DOI: 10.2351/1.4815992