Dear All
I am facing problem in joining two aluminium samples.
Sample description:
Sample 1: Al Plate: 160mm dia, 6mm thickness
Sample 2: Al Honeycomb: 6.4mm cell size, 50mm thickness.
Please refer figure for the joint.
Joint description: Joint should be thermally conductive.
Things I have tried and failed:
1. Brazing: failed, possible due to oxide bond
2. Soldering: failed, possible due to oxide bond
3. Adhesive bonding: pass, but time taking and cost ineffective
4. Mechanical mouting: Possible, but not thermally conducting due to air gap.
I request you to please give some ideas, the way I can move forward.
Thanks and regards
Navdeep
Hi navdeep,
You can try "Microwave hybrid heating" method. It can join dissimilar metals also.
I suppose you can try Mesoglue.
I would also try to polish the surfaces, put them together, and take them to a high temperature below the melting point, with potentially some weight on them.
Have you tried brazing in controlled atmosphere (like nitrogen) or vacuum? It have found it beneficial in most cases.
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