Tailor Welded Blanks (TWBs) made of dissimilar, uniform or non uniform thickness materials have potential applications in automobile industries for light weight materials in order to improve fuel efficiency and cost of carrier. The focus of this paper is to develop and present analytical model to determine total elongation of tailor welded blank (TWBs). The validation of this method is done by ...

Steel laser tailor-welded blanks (TWBs) are produced by end-to-end joining of base sheets using different welding methods. In this article, the formability of laser TWBs of St12 and St14 with thicknesses of 1 mm and 1.5 in single point incremental forming process were experimentally and numerically investigated. First, the forming limit wall angle was experimentally determined for each of the b...

Abstract Local stiffeners affect the behaviour of thin-walled beams (TWBs). An in-house code based on a one-dimensional model proved effective in several instances compressive buckling TWBs but gave counterintuitive results for locally stiffened TWBs. To clarify matter, we investigated with multi-symmetric double I cross-section, widely used practical applications where high bending stiffness i...

A typical tailor-welded blank (TWB) is composed of several base metals, which might have di!erent mechanical properties as well as thickness. Moreover, a TWB contains a heat-a!ected zone (HAZ) which has quite di!erent mechanical properties from base materials. The forming behaviors of TWBs have been widely studied since they were "rst developed as a way of using collectible o!al. They are often...

Welding method and its parameters has an important effect on the formability and mechanical properties of tailor welded blanks(TWBs). In this study gas tungsten arc welding(GTAW) is used to joint aluminum TWBs. Aluminum TWBs consist of 6061 aluminum sheets with different thickness of 1mm and 2mm. Main parameters of GTAW consist of welding current, pressure of shielding gas, welding speed and di...

Abstract In recent years, the demand for a reduction in pollutant emission has become extremely important vehicle industry. It can be achieved through fuel consumption reduction, which is direct function of vehicle’s weight. nowadays weight widely controlled by use advanced- and ultra-high strength steels (AHSS UHSS) body construction. With application such steel sheets as chassis elements, cra...

This work demonstrates applicability of electron beam welding (EBW) and laser (LBW) techniques for manufacture tailored welded blanks (TWBs) from Al-5251 (H22) Al-6082 (T6) sheets. A combination dissimilar sheets as well thicknesses (1.5 mm 2.5 mm) has been used in addition to a similar combination. An optimal post-weld heat treatment (PWHT) was determined that effective relieving stresses impa...

Tailor-welded blanks (TWB) are blanks with sheets of similar or dissimilar thicknesses, materials, coatings welded in a single plane before forming. Applications of TWB include car door inner panel, deck lids, bumper, side frame rails etc. in automotive sector (Kusuda et al., 1997; Pallet & Lark, 2001). Aluminium TWBs are widely used in automotive industries because of their great benefits in r...

In the present study, parameters of tool rotation speed, tool travel speed and tool offsetting with different levels were used in the friction stir welding (FSW) of aluminum-copper tailor welded blanks (TWBs). The FSW of pure copper to 5052 aluminum alloy were carried out by varying tool rotation speed from 800 rpm to 1200 rpm, tool travel speed from 40 mm/min to 80 mm/min and tool offsetting f...

The automotive industry is constantly looking for innovative techniques to produce lighter, more efficient, and less polluting vehicles comply with the increasingly restrictive environmental regulations. One of latest technologies, which still developing, based on fabrication body-in-white car parts through stamping aluminum tailor welded blanks. Tailor blanks (TWBs) are generally a combination...