Improving Global Quality of Life
Improving Global Quality of Life
Improving Global Quality of Life
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The potential applications are for example:<br />
Single sided linear welds up to 100 mm section and double sided linear welds up to 200 mm section<br />
Lower heat input/higher productivity double sided welding<br />
Adjustable pin technology and 3D welding with robots<br />
It will definitely be worthwhile to follow the fast development <strong>of</strong> the FSW process. Some FSW steel welding<br />
has been accomplished with low welding speed and excellent mechanical results. The tool life, is for the time<br />
being, far too short to justify the introduction <strong>of</strong> the process into production It is a challenge to develop tools<br />
which can withstand the high temperature.<br />
FSW Capabilities Chart<br />
Figure 5.8 Applications <strong>of</strong> friction stir<br />
welding (Reproduced courtesy: TWI Ltd)<br />
Area <strong>of</strong> Current FSW Production Use<br />
Area <strong>of</strong> Current FSW Research<br />
Area where FSW has been<br />
Demonstrated<br />
5.1.6 The Magnetic Pulse Technology (MPT)<br />
This process can be used for welding, crimping, punching, forming and for calibration (Figure 5.9). The<br />
welding process attracted very high interest, when it was demonstrated at the Essen Show in 2001 but to<br />
many people’s surprise the process has never taken <strong>of</strong>f probably due to low marketing efforts and/or due to<br />
high investment cost. The process <strong>of</strong>fers, however, many advantages such as; cold process, welding in less<br />
than 100 μs, no filler material, no shielding gases, it is a non-contact process and a “green” process.<br />
Welding on conventionally unweldable materials such as Al-7075 MPT is first <strong>of</strong> all suitable for large batch<br />
production to justify the high cost for the electrical coil, which is surrounding the work piece. It is not<br />
necessary that the parts are circular. Square parts can also be welded with the purpose designed coil. MPT<br />
has such potential applications that it will sooner or later be introduced on a wider scale.<br />
40 <strong>Improving</strong> <strong>Global</strong> <strong>Quality</strong> <strong>of</strong> <strong>Life</strong> Through Optimum Use and Innovation <strong>of</strong> Welding and Joining Technologies