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美国波音公司对钛合金磨削技术要求、工艺方法等的有关规定反映了丰富的实践经验,有一定的科学依据,有些地方我们可以借鉴.现整理出来供同行们参考.一、按照零件的重要性确定零件的疲劳特性要求,又根据疲劳特性制定零件表面完整性,并将表面完整性分为三级:1级:优质级,适用于零件的有特定的疲劳极限或应力速度集中的局部区域;2级;一般等级,适用于大部分结构等级的表面;3级:不重要等级,适用于在疲劳或应力集中方面不重要的表面.这些规定能有效地利用人力物力,有较好的经济性.
The United States Boeing titanium technical requirements for grinding, process methods and other relevant provisions reflect the rich practical experience, there are some scientific basis, in some places we can learn from. Now sorted out for their colleagues for reference. First, in accordance with the important parts Determining the fatigue characteristics of a part requires that the surface integrity of the part be defined based on the fatigue characteristics and that the surface integrity be divided into three levels: Level 1: Good quality, suitable for parts with specific fatigue limits or localized stress areas Class 2: Unimportant grade, suitable for use on surfaces that are not important in fatigue or stress concentration These provisions can make good use of human and material resources, have a good economy Sex.