So it is necessary to improve measures by adding the sweeping side teeth and modifying the tooth profile from rectangle into circular arc in the top disc.
据此在端盘上增加扫边齿和齿座外形由直角形改为圆弧形的改进措施。
The relation of law of the fatigue crack extending and feature of macro-profile is discovered, which provides a new method for the life estimation of the brake disc.
发现裂纹剖面宏观形貌特征与制动盘疲劳裂纹扩展规律之间存在一定的关联，为制动盘寿命评估提供了新的思路。
The feature of macro-profile is analyzed, and the crack initiation and extending mechanism of brake disc is discussed.
分析了制动盘裂纹剖面的宏观形貌特征，并对制动盘裂纹萌生和扩展机理进行探讨。
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