Tailor-welded blanks

  • 10-Feb-2009 10:27 EST
Tailored_Blank_Audi.jpg

With its first application in a production car, ThyssenKrupp Steel’s hot-stamped tailor-welded blanks are used in the Audi A5 coupe and the new A4’s B-pillars’ rear-side members and tunnel reinforcements. This technology is used mainly in the production of crash-relevant components. In addition to rear and front members, typical applications are bumpers or roof rail reinforcements. With the hot stamping process, a manganese-boron-alloy steel designed specially for the process is first heated to 880 to 950°C (1616 to 1742°F) in a furnace, then stamped into a component, and cooled very quickly in the die at a rate of more than 30 K/s (54 R/s). The high blank temperature during stamping ensures forming behavior, and the subsequent rapid cooling results in an extremely hard microstructure in the material. This produces a tensile strength of around 1500 MPa (217,560 lb/in2).

For more information, visit booth 1155 at the SAE 2009 World Congress.
Share
HTML for Linking to Page
Page URL
Grade
Rate It
2.17 Avg. Rating

Read More Articles On

2018-02-14
Boeing and Airbus forecast a worldwide demand for up to 40,000 new aircraft over the next two decades. With a 10-year production backlog and new aircrafts increasingly counting on lightweight composites, manufacturing companies are developing advanced sandwich-structure composite solutions to fill the production gap.
2018-02-05
Thermal imaging data obtained from a FLIR high-performance camera shows that the expected turbine output temperature is approximately 285°C when the helicopter is in forward flight. However, during hover operations a steady state temperature of about 343°C will be reached.

Related Items

Technical Paper / Journal Article
2011-05-17
Training / Education
2013-04-09
Article
2017-09-27
Training / Education
2013-04-09
Standard
1987-05-01
Training / Education
2013-04-09
Technical Paper / Journal Article
2011-05-17
Technical Paper / Journal Article
2011-05-17
X