Light-Weight Vehicles in a Low Carbon Economy
Recently, the global economy has been undergoing um green transformation. O automo tive industry - a "large producer" of carbon emissions - has also entered the "lightweight era" . British laboratory experimental data shows that every 30% reduction in vehicle weight can increase fuel efficiency by 20%-24% and reduce carbon dioxide emissions by 20%. Lightweight is an important way to save energy and reduce emissions in automotive industry, and is also an important development direction para automotive industry under the background of "carbon neutrality".
In the pursuit of an answer to the problem of lightweight car bod e , high strength steel has come into public sight as th e most preferred role U nder the same weight, high strength steel can greatly increase the strength of the car body, thereby improv ing the vehicle's collision safety performance. However, forming this material is difficult and the rebound phenomenon is also serious, which poses many problems para the manufacturing and debugging of tooling
The emergence of hot
stamping
steel provides a perfect solution to the above two problems.
H
ot
stamping
steel ensures high strength and stiffness
, the structure has a low density, which can
great
ly meet the needs of
um
eu
ightweight
car body
. During the manufacturing process, hot
stamping
steel can be deeply processed after high
temperature treatment,
res
ul
ti
ng
em
um
better
forming effect,
the
rebound
phenomenon is also well controlled.
The composition and properties of hot
stamping
steel for automotive
applications
are carefully designed and rigorously selected. This material
consists
mainly of iron, carbon, manganese, silicon and other elements, of which carbon and manganese are the main strengthening elements. Through
um
reasonable
combination
of
composition
and heat treatment process
es
, hot
stamping
steel with excellent properties can be obtained.
In the body-in-white, the main components using hot stamping steel include A-pillars, B-pillars, C-pillars, upper side beams, door sill side beams, central channel , floor crossbar , front panels, etc. These key frame parts of th e b ody use hot stamping parts, which can effectively ensure the integrity of the body frame structure in um collision accident, thereby protecting passengers.