· IngenierÃa ·
Josef Wöhrer and Andreas Kraly
Salzburger Aluminium AG in Lend (Austria)
67th World Foundry Congress
SAG is a producer of thixoforming raw material for worldwide use at
different producers of Semi Solid Metalforming serial parts.
The SAG subsidiary Thixalloy® Components Company produces by itself
complex designed Thixoforming parts in Alloy A356/A357 for different
applications. The production of weldable structure parts and weldable
pressure tight parts plays an important role as well as the production of
surface treated parts for industrial use.
The customer benefits are tight dimensional tolerances, superior
weldability with high process ability, good mechanical properties in the
thixoformed condition with and without heat treatment, pressure tightness
up to 80 bar after welding, good surface quality and good behaviour in
plating.
Yield strengths of 200 MPa can be reached with a very cost efficient T5
heat treatment on TX 540 AlMg5Si2Mn or TX630 AlSi7Mg0.8. The so
called Silicon Spheroidization Treatment (SST) is described which enables
real parts to fulfil the high demands and to reach the values which are
needed on suspension parts and wheels.
Additionally in this paper are shown parts which are produced with alloy
type MAXXALLOY TX540 Al5Mg2Mn in Thixoforming. So Thixoforming
works out as a more and more cost efficient process for Aluminum parts
with high quality requirements.
