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

2017-01-11
An ultralight door architecture nets a 42.5% weight savings compared to a current production door, and that's enough to put this lightweight concept, developed via collaboration, in an enviable position.
2016-08-31
The SPR process can join aluminum, steel, plastics, carbon fiber, composites, and combinations of materials without the need for a pre-drilled hole. And SPRs don’t require heat to complete the assembly process.
2016-11-29
Sarlink ML-2355B from Teknor Apex is a new styrene block copolymer thermoplastic elastomer (TPE-S) for automotive interior parts such as cable ducts and grommets.
2016-09-02
As a new option, YXLON provides ASTM E2973 digital reference images for aluminum and magnesium die castings in its imaging software Image2500 and Image3500 of X-ray inspection systems, including Y.MU2000-D and MU60 AE.

Related Items

Technical Paper / Journal Article
2010-09-28
Standard
1966-08-01
Training / Education
2013-04-09
Article
2017-01-31
Training / Education
2013-04-09
Training / Education
2013-04-09
Training / Education
2013-04-09
Technical Paper / Journal Article
2010-09-28