The Paton Welding Journal, 2012, №04



2012 №04 (06)

2012 №04 (08)

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The Paton Welding Journal, 2012, #4, 37-41 pages  

CAPACITOR-DISCHARGE STUD WELDING IN VACUUM

B.E. PATON, D.M. KALEKO, A.R. BULATSEV and V.F. SHULYM

E.O. Paton Electric Welding Institute, NASU, Kiev, Ukraine
 
 
Abstract
Given are the results of investigations into capacitor-discharge welding of studs of aluminium-magnesium alloy AMg3 and stainless steel 10Kh18N9T under conditions of medium and high vacuum. It is shown that a high-current short-time pulsed discharge, at which the major part of evaporated metal remains in the gap between the mating surfaces, can be used for vacuum butt welding of compact-section parts to a sheet material. It is experimentally proved that up to M6 diameter studs can be welded at pressure of 1.33 Pa with a static tensile strength value of the joints being equal to that of the stud material.
 
 
Keywords: capacitor-discharge welding in vacuum, arc discharge, stud welding, aluminium alloy, stainless steel, volt-ampere characteristics, macrostructure, mechanical properties
 
 
Received:                16.01.12
Published:               28.04.12
 
 
References
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