Databank

Workreport 1997-6

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Name:

EB-hitsausmenetelmän kehittäminen massiivisen kuparikapselin valmistamiseen. EB-hitsausparametrien optimointi vaaka- ja pystysäteellä (1995-96)

Writer:

Harri Aalto; Heikki Raiko; Ismo Meuronen

Language:

Finnish

Page count:

71

Summary:

Working report: Abstract

In the second phase (during 1995-1996) of the three year project "Development of EB-welding
method for massive copper canister manufacturing" the welding develoment work of 50 mm thick
copper was carried on. The work mainly consisted of the welding experiments using vertical EB-
welding into bulk material (without real joint). The test pieces were plates and 1/4-cylinders. The
aim was to find out optiinal parameters for horizontal EB-welding and development of the proper
fade-out procedure which is needed for the circular welds.

Test pieces were welded at IGM Robotersysteme AG in Puchheim, Germany and at Finavitec Oy in
Linnavuori, Finland. The new information was obtained for transferability of the welding pararneters
from the one EB-welding machine to another, the differencies of the welding positions, horizontal
EB-welding of thick copper and preliminary information of parameters during fade out.

The horizontal EB-welding of thick copper proved to be more challenging than vertical EB-welding.
As a result the optimal welding parameters were developed for horizontal welding which can be used
for longitudinal seams of the copper cylinder, but the development of the proper fade-out still
requires more work.

Abstract

In the second phase (during 1995-1996) of the three year project "Development of EB-welding
method for massive copper canister manufacturing" the welding develoment work of 50 mm thick
copper was carried on. The work mainly consisted of the welding experiments using vertical EB-
welding into bulk material (without real joint). The test pieces were plates and 1/4-cylinders. The
aim was to find out optiinal parameters for horizontal EB-welding and development of the proper
fade-out procedure which is needed for the circular welds.

Test pieces were welded at IGM Robotersysteme AG in Puchheim, Germany and at Finavitec Oy in
Linnavuori, Finland. The new information was obtained for transferability of the welding pararneters
from the one EB-welding machine to another, the differencies of the welding positions, horizontal
EB-welding of thick copper and preliminary information of parameters during fade out.

The horizontal EB-welding of thick copper proved to be more challenging than vertical EB-welding.
As a result the optimal welding parameters were developed for horizontal welding which can be used
for longitudinal seams of the copper cylinder, but the development of the proper fade-out still
requires more work.

Keywords:

File(s):

EB-hitsausmenetelmän kehittäminen massiivisen kuparikapselin valmistamiseen. EB-hitsausparametrien optimointi vaaka- ja pystysäteellä (1995-96) (pdf) (868.7 KB)


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