German vehicle maker audi has all started its paintings on the following generation audi a8 and in a press release stated that a mix of 4 materials is getting used for the primary time within the weight-bearing body structure – greater materials than in any of the logo’s previous manufacturing models. audi a8 comes underneath the luxury sedan class and rivals the likes of bmw 7 collection and mercedes-benz s-magnificence. with this audi will even get a large perception in automotive light-weight design.
the lightweight layout experts at audi long in the past abandoned the fixation on the use of a single fabric in lightweight layout. with a combination of aluminum, metal, magnesium and carbon fiber-reinforced polymer (cfrp) they’re setting up a brand new level in multi-material production in the audi area body (asf) for the subsequent technology of the audi a8 – consistent with the principle “the right fabric within the proper location and within the proper quantity.” the organization said in a announcement.
in terms of its overall dimensions, an extremely-high-power, torsionally inflexible rear panel product of cfrp is the most important issue in the occupant cell of the new audi a8, and it contributes 33 percent to the torsional stress of the full car. to optimally take in longitudinal and transverse hundreds in addition to shearing force, between six and 19 fiber layers are placed one on pinnacle of the alternative, ensuring a load-optimized layout. these character fiber layers include tapes
50 millimeters (2.0 in) wide and can be positioned individually in a finished layered bundle, with any desired fiber perspective and minimum trimming of the fibers. the revolutionary direct-fiber layering system mainly advanced for this reason makes it viable to totally dispense with the typically wanted middleman step of producing complete sheets. the usage of any other newly advanced process, the layered package deal is wetted with epoxide resin and units within minutes.
a high-strength combination of warm-formed metal additives make up the occupant cell, which incorporates the decrease section of the the front bulkhead, the facet sills, the b-pillars and the the front phase of the roof line. a number of these sheet steel blanks are produced in various thicknesses the usage of tailoring technologies – that means they’re customized – and others also undergo partial warmth treatment. that reduces weight and will increase the strength, particularly in areas of the automobile which might be mainly critical for safety.
the aluminum components make up fifty eight percent of the brand new audi a8 body, the biggest percentage within the blend of substances. cast nodes, extruded profiles and sheets are the factors function of the asf design. and right here too the opposition of materials has been driving progress. new warmth-dealt with, ultra-excessive-energy forged alloys obtain a tensile energy of over 230 mpa (megapascals). the corresponding yield power in the tensile check is over 180 mpa, and for the profile alloys it’s far better than 280, i.e. 320 mpa – considerably higher values than visible formerly.
while compared with the predecessor model indicates that it contributes a 28-percentage weight financial savings. aluminum bolts cozy the connection to the strut tower domes, making them a guarantor of the frame’s high torsional tension. inside the event of a frontal collision, the forces generated are distributed to 3 effect buffers inside the the front end.
this new technique also consequences in a ninety five percentage financial savings on ordinary costs in collection manufacturing because it gets rid of the want for pricey system controls required with traditional laser welding. the faraway laser welding era perfectly symbolizes the entire manufacturing of the brand new audi a8.
in 1994 it was the first era of this luxurious sedan, with its aluminum unitary body, that made the audi space body a longtime presence in the automobile global. when you consider that then the corporation has constructed greater than a million production motors in accordance with this design principle, and it’s been always constructing upon its understanding within the use of materials and joining techniques.
