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随着航空工业,航天宇宙的开发的需要,对材料的力学机械性能要求越来越高,由于铝镁等合金材料其耐磨性能较差,剪切强度也低,为了与其它零部件连接,如直接用螺栓进行多次拆卸检查,势必使这些易磨损的有色金属基体由于螺孔磨损而报度,或采用镶入带内外螺纹的钢质整体衬套(图一),但这样一来,零件增多,加工量加大,同时整体衬套要求精密,加工困
With the development of aerospace industry and aerospace universe, the mechanical and mechanical properties of materials are increasingly demanding. Due to its poor wear resistance and low shear strength, such as aluminum-magnesium alloy materials, in order to connect with other components, Such as direct bolt disassembly inspection, is bound to make these easy-to-wear non-ferrous metal substrate due to wear and tear of the screw reported, or with embedded in the external thread with a steel sleeve (Figure 1), but this way, Parts increase, increase the amount of processing, while the overall requirements of precision bushings, processing difficulties