一前言多年来,铝合金零件已被广泛用于工程结构中。一般来说,这些零件是由各种传统的机械加工方法制造的。锻件用于强度和致密性具有头等重要性的场合。而铸件则用作不重要的结构件,铸造成形工艺在这种场合能发挥经济效益。一般工程应用的铝合金零件还仅限于挤压铸造件或铸造件。其主要因素是零件的价格问题,因此承载零件几乎总是由钢或铸铁制成,也许除非在国防和宇航工业中,才不得不承担 A preface Over the years, aluminum alloy parts have been widely used in engineering structures. In general, these parts are made by a variety of conventional machining methods. Forgings are of first importance for strength and compactness. Castings, on the other hand, are used as non-essential structural parts, and the casting forming process can play an economic role in such situations. Aluminum alloy parts for general engineering applications are also limited to squeeze castings or castings. The main factor is the price of the parts, so the load-bearing parts are almost always made of steel or cast iron, perhaps unless they have to bear in the defense and aerospace industries