New Automatic Welding Processes and Deformation Analysis for Large Aluminum Ultra-High Vacuum Chambers

Ching Lung Chen; Chin Chun Chang

doi:10.4028/www.scientific.net/KEM.730.282

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Thermodynamic Research of S-H₂O System in Sodium Aluminate Solution
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New Automatic Welding Processes and Deformation Analysis for Large Aluminum Ultra-High Vacuum Chambers
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Chips Morphology Analysis under Graphene Oxide Suspension with Tungsten Carbide Tool in Drilling Ti-6Al-4V
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HomeKey Engineering MaterialsKey Engineering Materials Vol. 730New Automatic Welding Processes and Deformation...

New Automatic Welding Processes and Deformation Analysis for Large Aluminum Ultra-High Vacuum Chambers

Abstract:

A new welding technique has been developed for manufacturing large aluminum chambers for an ultra-high vacuum (UHV) system. Combined with appropriate manufacturing processes, the aluminum chambers have an oil-free interior surface finished for an ultra-high vacuum environment before aluminum welding. An automatic welding system, which comprises six welding torches to implement simultaneously two longitudinal side welds of the asymmetric chamber, is introduced. In traditional manual welding, the key success factors focus on elimination as much as possible the distortions of structural assemblies. The six-torch welding and a clamp-free approach together address the issue of reducing distortion and minimizing residual stresses with a novel one-step welding process. From the beginning of CNC machining to the end of vacuum component assembly, deformations through all process sequences are measured and controlled under 0.35 mm. In this paper, both the manufacturing sequences and statistical analysis of deformation control are presented in detail.

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Periodical:

Key Engineering Materials (Volume 730)

Pages:

282-288

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.730.282

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Online since:

February 2017

Authors:

Ching Lung Chen*, Chin Chun Chang

Keywords:

Aluminium, Automatic, Chamber, TIG Welding, Vacuum

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References

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