Page 5 - Motor Fan illustrated Special Edition
P. 5

Passenger cell                                                                     BMW i3
                                                                                                                                                                                                               The body of this electric vehicle
                                                                                                                                                                                                               has a two-unit conguration. The
                                                                                                                                                                                                               upper unit (the passenger cell) is
                                                                                                                                                                                                               made of CFRP (Carbon-ber-
                                                                                                                                                                                                               reinforced polymer), whereas the
                                                                                                                                                                                                               upper unit (the drive module) and
                                                                                                                                                                                                               the space frame are made of
                                                                                                                                                                                      Lithium-ion battery      aluminum extruded shapes. The
                                                                                                                                                                                                               door panels also have extruded
                                                                                                                                                                                                               aluminum built-in frames.

                                                                                                                                                                             Drive module (Aluminum alloy chassis)

                                                                                                                                     Compressor wheels for
                                                                                                                                     turbochargers                                                               TESLA MODEL-S

                                                                                                                                    These are precisely manufactured

                                                                                                                                    aluminum alloy impellers used to                                    The chassis of the TESLA MODEL-S has an   Motor Fan illustrated

                                                                                                                                    compress air. UACJ's aluminum                                       aluminum frame structure made of aluminum
                                                                                                                                    precision cast compressor wheels
                                                                                                                                    hold the world’s top share.                                         extruded shapes, with the battery cells

                                                                                                                                                                                                        arranged under the oor to achieve a low
                                                                                                                                                                                                        center of gravity. The body panels also

                                                                                                                                                                                                        adopt aluminum alloy sheet.               ALUMINUM  AUTOMOBILE TECHNOLOGY

                                                                                                                                                                                                        Aluminum alloy chassis


                                                                                                                                                                                                                                 Heat exchanger

                                                                                                                                          A subframe is a structural component that is a separate structure   Forged aluminum alloys

                                                                                                                                          within a larger monocoque. It carries certain components, such
                                                                                                                                          as the engine drivetrain or suspension. Subframes need to have
                                                                                                                                          high rigidity and shock-absorbing capabilities.          Because of their high strength,
                                                                                                                                                                                                   high cyclic stress, and high
                                                                                                                                                                                                   reliability, forged aluminum
                                                                                                                                                                                                   alloys are used for structural
                                                                                                                                                                                                   parts such as suspension
                                                                                                                                                                                                   arms. Forging techniques
                                                                                                                                                                                                   include hot forging and cold forging, and alloys can be
                                                                                                                                                                                                   selected to match the properties of each part.
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