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The laboratory has developed a fabrication technology of
boron/aluminium structural elements that does not involve
high-temperature/high-pressure equipment which is usualle very expensive. This
simplifies essentially the whole process of the fabrication of tubes, shells,
various profiles, etc, which is normally based on a gas isostatic
equipment.
For example, to produce boron/aluminum tubes with longitudinal
reinforcement, see Fig.1 for examples, which are characterized in Table 1, we
have constructed a simple equipment (Fig.2) based on a commercially available
furnace.
Tubes have the end fittings either of aluminum or titanium
alloys.
The technology provides the possibility to optimize the composite
microstructure to enhance characteristics of the tubes.
At the same time we
see how to improve the technology to make the product of higher quality and
lower cost. It is certainly possible to develop similar processes for another
composite systems.
Fig.1. Boron/aluminum tubes with longitudinal reinforcement.
Fig.2. The equipment for producing
boron/aluminum tubes with longitudinal reinforcement. Maximum tube length is
1500 mm, maximum diameter is 75 mm.
The safety of the equipment is sufficient
to run it in any room.
We propose:
We are ready to consider the technology transfer of boron/aluminium tubes at any time.
R&D projects can be carried out in the following directions:
Appendix
BORON/ALUMINIUM TUBE CHARACTERIZATION
Tubes produced by using the equipment operating at the present time:
Table 1. BORON/ALUMINUM TUBES.
Matrix |
Length |
Diameter |
Wall |
Tension
or |
Ultimate
load |
|
mm |
mm |
mm |
|
ton |
Al-6Mg |
1000 |
65 |
1.0 |
Compression |
20 |
Al-6Mg |
1000 |
65 |
1.0 |
Tension |
20 |
Al-6Mg |
400 |
60 |
1.2 |
Compression |
40 |
Al-6Mg |
400 |
60 |
1.2 |
Tension |
25 |
AD-33* |
400 |
60 |
0.75 |
Tension |
18 |
* Russian trade name for the 6061-alloy.
THE EQUIPMENT IN THE LABORATORY IS CAPABLE TO PRODUCE UP TO 1000 TUBES PER YEAR