汽车铝应用手册-AAM-design-4-design-for-cost-optimization.pdf

Design – Aluminium design for cost optimization Table of Contents 4  Aluminium design for cost optimization 2  4.1  Introduction 2  4.2  The role of the envisaged production volume 5  4.3  Design economics 8  4.3.1  Life cycle cost 8  4.3.2  Relationship between weight and cost 9  4.4  Cost-efficient design solutions with aluminium 10  4.4.1  Introduction 10  4.4.2  Stamped sheet components 12  4.4.3  Components made from extruded sections 29  4.4.4  Cast solutions 42  Version 2011 © European Aluminium Association (auto@eaa.be) 1 4 Aluminium design for cost optimization 4.1 Introduction The success of the various aluminium body design concepts depends in particular on the availability of the appropriate aluminium material quality. In this respect, intensive development efforts during the last years have led to significant product improvements allowing new innovative design solutions. A necessary pre-condition is the convergence of a number of factors of commercial, technical and metallurgical nature. A key requirement for a positive outcome of the project is also the close collaboration of the development engineers of the aluminium supplier with their partners within the automotive industry. Apart from technical considerations, the design and manufacture of aluminium automotive structures requires today the observation of sustainability aspects, i.e. it is necessary to take into account:  ways to minimize production waste and its deposition,  recycling processes for the applied materials,  health and safety aspects and  life cycle assessment views, e.g. savings of fuel and emissions. Most important, however, are the economical considerations. In this section, the design aspects influencing the economics of aluminium use in cars are treated in more details. When simply c