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Also, by increasing the radius and height of the drawbead the weld line movement is minimized (Fig. 12). 5 mm (R = 5 mm), by providing a drawbead on the thinner blank. 2 mm approximately. This approach is useful, as the drawbead location and geometry for a given TWB combination and a component to be manufactured can be optimized. In case the component shape changes, or the material combination changes, it may necessitate the reworking of the drawbead to optimize for the changed conditions. This approach also does not require sophisticated metal forming equipment capable of applying variable blank holder pressure.

2 for the selected systems. 3. 0 of such a system is placed in the bottom row as the result of the combined performance of the selected systems on such weld imperfection. 6 ppm. This final performance is achieved when all systems perform as expected and each part has only one type of weld imperfection. As mentioned previously, not all weld imperfections are considered as defects to a TWB. Whether the imperfection is a defect or not is determined by the subsequent processes the weld is going to experience and the end application of the product.

2, May 2005, p. 81. © Woodhead Publishing Limited, 2011 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 20 1 2 3 4 5 6 7 8 9 30 1 2 3 4 5 6 7 8 9 40 1 2 43X 46 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 20 1 2 3 4 5 6 7 8 9 30 1 2 3 4 5 6 7 8 9 40 1 2 43X Tailor welded blanks for advanced manufacturing 13. Mustafa A. Ahmetoglu, Dirk Brouwers, Leonid Shulkin, Laurent Taupin, Gary L. Kinzel, Taylan Altan, ‘Deep drawing of round cups from tailor welded blanks’, Journal of Material Processing Technology, Vol. 53, 1995, p.