High-temperature vacuum brazing of centrifugal-compressor impellers made of 07Kh16N6 steel

1978 ◽  
Vol 14 (5) ◽  
pp. 448-452
Author(s):  
V. N. Radzievskii ◽  
V. I. Rymar'
Keyword(s):  
High Temperature ◽  
Centrifugal Compressor ◽  
Vacuum Brazing ◽  
07Kh16n6 Steel

scholarly journals Development of multi-channel high power rectangular RF window for LHCD system employing high temperature vacuum brazing technique

2010 ◽  
Vol 208 ◽  
pp. 012024
Author(s):  
P K Sharma ◽  
K K Ambulkar ◽  
P R Parmar ◽  
C G Virani ◽  
A L Thakur ◽  
...  
Keyword(s):  
High Temperature ◽  
High Power ◽  
Vacuum Brazing ◽  
Rf Window

High-temperature vacuum brazing of plate-and-rib heat exchangers of compressor units

1980 ◽  
Vol 16 (6) ◽  
pp. 353-356
Author(s):  
V. N. Radzievskii ◽  
P. A. Mil'shtein ◽  
V. I. Rymar
Keyword(s):  
High Temperature ◽  
Heat Exchangers ◽  
Vacuum Brazing

Advanced aluminum alloys for aircraft brazed structures

2021 ◽  
pp. 179-192
Author(s):  
E.N. Kablov ◽  
N.V. Dynin ◽  
I. Benarieb ◽  
N.D. Shchetinina ◽  
S.V. Samokhvalov ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Corrosion Resistance ◽  
High Temperature ◽  
Aluminum Alloys ◽  
Heat Exchangers ◽  
Base Material ◽  
Additive Technologies ◽  
Technical Literature ◽  
Vacuum Brazing

Review of domestic and foreign scientific and technical literature in the fi eld of application of aluminum alloys for brazed structures of aircraft heat exchangers manufactured by high-temperature vacuum brazing is provided. Prospective developments of domestic aluminum alloys for application as base material for clad sheets for brazed structures of heat exchangers are presented. The possibilities for increasing of the corrosion resistance of heat transfer surfaces are considered. The possibilities for application of additive technologies for the manufacture of aluminum heat exchangers alloys are considered.

scholarly journals Considerations for Using Additive Manufacturing Technology in Centrifugal Compressor Research

2020 ◽  
Vol 142 (3) ◽  
Author(s):  
Matthew A. Meier ◽  
William J. Gooding ◽  
John Fabian ◽  
Nicole Key
Keyword(s):  
High Temperature ◽  
Centrifugal Compressor ◽  
Lead Time ◽  
Flow Path ◽  
Precision Measurements ◽  
Research Facility ◽  
Manufacturing Costs ◽  
Vaned Diffuser ◽  
Additive Manufacturing Technology ◽  
Metal Materials

Abstract An additive manufactured (AM) vaned diffuser for use in a centrifugal compressor research facility was designed and implemented. Utilizing an AM process to manufacture the diffuser reduces the long lead time that is associated with conventionally manufactured diffusers, and it increases the instrumentation capabilities within the flow path. Several AM techniques and a variety of plastic and metal materials were evaluated for this application. A high-temperature, stereolithography (SL) resin was chosen because of the tight dimensional tolerances maintained by the SL process. Utilizing a high-temperature plastic also results in manufacturing costs that are significantly less than using a metal material. Samples of the chosen material were subjected to mechanical testing to investigate the effects of build direction and to verify its properties in the high-temperature compressor environment. To fit within the manufacturing space of an SL machine, the AM diffuser consists of seven radially symmetric sections that are assembled to form a complete flow path. Considerations for modifying the research facility to allow for this unique installation are presented. Precision measurements of the AM components were obtained to compare printed and modeled geometry, and they demonstrate close alignment of flow path dimensions.

Considerations for Using Additive Manufacturing Technology in Centrifugal Compressor Research

2019 ◽  
Author(s):  
Matthew A. Meier ◽  
William J. Gooding ◽  
John Fabian ◽  
Nicole Key
Keyword(s):  
High Temperature ◽  
Centrifugal Compressor ◽  
Lead Time ◽  
Flow Path ◽  
Precision Measurements ◽  
Research Facility ◽  
Manufacturing Costs ◽  
Vaned Diffuser ◽  
Additive Manufacturing Technology ◽  
Metal Materials

Abstract An additive manufactured (AM) vaned diffuser for use in a centrifugal compressor research facility was designed and implemented. Utilizing an AM process to manufacture the diffuser reduces the long lead time that is associated with conventionally manufactured diffusers, and it increases the instrumentation capabilities within the flow path. Several AM techniques and a variety of plastic and metal materials were evaluated for this application. A high-temperature, stereolithography (SL) resin was chosen because of the tight dimensional tolerances maintained by the SL process. Utilizing a high-temperature plastic also results in manufacturing costs that are significantly less than using a metal material. Samples of the chosen material were subjected to mechanical testing to investigate the effects of build direction (BD) and to verify its properties in the high-temperature compressor environment. To fit within the manufacturing space of an SL machine, the AM diffuser consists of seven radially symmetric sections that are assembled to form a complete flow path. Considerations for modifying the research facility to allow for this unique installation are presented. Precision measurements of the AM components were obtained to compare printed and modeled geometry, and they demonstrate close alignment of flow path dimensions.

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