determining optimum values of laser welding parameters for a TWB-using taguchi method

in recent years the use of tailor welded blanks TWBs has increased in practice not only in the automotive industry but also in other manufacturing industries TWBs are composed of two or more welded metal sheets with different thicknesses and/or coatings and/or even materials in spite of various benefits of application of TWBs there are some limitations in production and using of them one is the occurrence of fracture in weld or HAZ zones during forming and consequently a dectrase intheir formability so determining proper condition of welding these blanks is too important is this research optimum values of CO2-laser welding parameters for a TWB composed OF IF steel sheets with thicknesses about 0.8 and 1.2 mm in order to get the best formability were determined ormability was investigated by dome height test and erichson test.

Keywords:

CO2 laser welding TWBformability , taguchi method