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INNOVATION > PRODUCTS
3D scanning to optimize
development
3D scanning (for parts, manufacturing steps,
tooling, etc.) is a competitive edge for optimizing
the development of new products, contributing
to expertise, or retro-designing existing products.
In 2017, LISI AUTOMOTIVE’s research department
invested in a high-definition 3D laser scanner to
supplement its internal support capabilities. The
portabledevice,combinedwithanarticulated2.5m
armable toget itsbearingson itsown, canbeused
togenerate3Dnumericalmodelsof existingparts.
The data can then be retrieved by CAD software to
create digital mockups, geometrically compare
models, ormanage 3Dprinting.
GAINS / BENEFITS
Optimization of cold stamping
manufacturing processes
Conformity verification
Development
Weight reduction:
push the limit of materials
The optimization of materials and assemblies to
contribute to the lightening of vehicles is a central
researchtopicforLISIAUTOMOTIVE.Thereduction
of the dimensions of the steel screwed fasteners
to limit their weight and their wheelbases must
be compensated by the reinforcement of their
mechanical properties. Reconciling mechanical
strengths (from 1,500 to 1,700 MPa) and plastic
deformation ability (ductility), while limiting the
fragilityofsteelwithhydrogenisastrongchallenge.
The development of threaded steel or bainite
fastenershasmadeitpossibletocircumventthislast
obstacleforresistancelevelshigherthan1,500MPa.
Forequivalentmechanicalstrength,theresistance
to hydrogen embrittlement of a bainite fastener is
up to two times greater than that of a traditional
hardened steel fastener.
GAINS / BENEFITS
Weight gain
Improvement of mechanical properties
Reduction of the risk of hydrogen
embrittlement
LISI AUTOMOTIVE
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INNOVATION