Metal Microchannel Lamination Using Surface Mount Adhesives for Low-Temperature Heat Exchangers Public Deposited

http://ir.library.oregonstate.edu/concern/defaults/9306sz844

This is the authors’ post-peer review version of the final article. The final published version can be found at:  http://www.elsevier.com/wps/find/journaldescription.cws_home/620379/description#description.

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  • This paper reports the feasibility of using surface mount adhesives to produce low temperature microchannel arrays in a wide variety of metals. Sheet metal embossing and chemical etching processes have been used to produce sealing bosses that eliminate channel laminae, resulting in approximately 50% material savings over traditional methods. An assembly process using adhesive dispense and cure is outlined to produce leak-free devices. Optimal fill ratios were determined to be between 1.1 and 1.25. Bond strength investigation reveals robustness to surface conditions and a bond strength of 5.5-8.5 MPa using a 3X safety factor. Dimensional characterization reveals a two sigma (95%) post-bonded channel height tolerance under 10% after bonding. Patterning tolerance and surface roughness of the laminae faying surfaces were found to have a significant influence on the final post-bonded channel height. Leakage and burst pressure testing on several samples has established confidence that adhesive bonding can produce leak-free joints. Operating pressures up to 413 kPa have been satisfied equating to tensile pressure on bond joints of 1.9 MPa. Higher operating pressures can be accommodated by increasing the bond area of devices.
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  • Prawin, P., & Paul, B. K. (2011, February 23). Metal Microchannel Lamination Using Surface Mount Adhesives for Low-Temperature Heat Exchangers. Journal of Manufacturing Processes. doi:10.1016/j.jmapro.2011.01.001
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  • description.provenance : Approved for entry into archive by Sue Kunda(sue.kunda@oregonstate.edu) on 2011-03-15T16:24:58Z (GMT) No. of bitstreams: 2 PulrajPrawin.Mechanical Industrial & Manufacturing Engineering.Metal Microchannel Lamination.Manuscript.pdf: 158451 bytes, checksum: 9175e23e8a88d52205f8422d74db1e30 (MD5) PulrajPrawin.MetalMicrochannelLaminationFiguresandTables.zip: 5403585 bytes, checksum: 0afda5a4336ae2a1de01447c4a5c277f (MD5)
  • description.provenance : Made available in DSpace on 2011-03-15T16:24:59Z (GMT). No. of bitstreams: 2 PulrajPrawin.Mechanical Industrial & Manufacturing Engineering.Metal Microchannel Lamination.Manuscript.pdf: 158451 bytes, checksum: 9175e23e8a88d52205f8422d74db1e30 (MD5) PulrajPrawin.MetalMicrochannelLaminationFiguresandTables.zip: 5403585 bytes, checksum: 0afda5a4336ae2a1de01447c4a5c277f (MD5) Previous issue date: 2011-02-23
  • description.provenance : Submitted by Sue Kunda (sue.kunda@oregonstate.edu) on 2011-03-15T16:22:06Z No. of bitstreams: 2 PulrajPrawin.Mechanical Industrial & Manufacturing Engineering.Metal Microchannel Lamination.Manuscript.pdf: 158451 bytes, checksum: 9175e23e8a88d52205f8422d74db1e30 (MD5) PulrajPrawin.MetalMicrochannelLaminationFiguresandTables.zip: 5403585 bytes, checksum: 0afda5a4336ae2a1de01447c4a5c277f (MD5)

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