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- W1657506989 abstract "Polymer use in micro‐devices, especially in the medical industry has been rapidly increasing. During assembly of micro‐devices it is desirable to produce weld joints that are about 100 μm in width. This paper reviews the modeling of heat flow during through transmission infrared micro‐welding of plastic using fiber coupled laser diodes. Two models were used to predict the temperature distributions within welded samples. Both models were based on a moving heat source and moving coordinate system. For the simpler model a moving point heat source was used and for the more complex model a Gaussian distributed heat source was used. It was found that the distributed model can accurately predict temperature fields in plastic laser welds for all ranges of the parameters evaluated. However, the point heat source model was only able to accurately predict temperature fields with a relatively small laser focal spot (25 μm). In addition it was found that for micro‐welding of plastics, when the dimensionless distribution parameter is less than two, a point heat source model predicts similar widths to those predicted by a distributed heat source model." @default.
- W1657506989 created "2016-06-24" @default.
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- W1657506989 date "2004-01-01" @default.
- W1657506989 modified "2023-10-14" @default.
- W1657506989 title "Modeling Heat Flow for a Distributed Moving Heat Source in Micro-Laser Welding of Plastics" @default.
- W1657506989 cites W2894659745 @default.
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- W1657506989 doi "https://doi.org/10.1063/1.1766704" @default.
- W1657506989 hasPublicationYear "2004" @default.
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