康宁街道TUNGLEE电机5L15-2创进致远
众所周知，刀具切削刃的几何形状是决定其加工效率的关键因素。一般而言，增大切削刃的钝圆半径有助于更地切除金属材料，并延长刀具寿命。科研机构和刀具制造商已对其中的机理进行了详尽的研究。简单来说，带有磨削缺陷和毛刺的锋利切削刃在切削初始阶段很容易发生崩刃，造成局部刃口加速破损。对切削刃周围摩擦剪切应力的详细分析表明，切屑厚度随着切削刃钝圆半径的增大而减小。加大刃口钝圆半径可以大大减少刀具与切屑的接触长度和热量聚积，从而减缓刀具磨损。
康宁街道TUNGLEE电机5L15-2创进致远


(3)齿轮表面损伤故障。
①齿面磨损。齿轮由于齿面剥落、拉伤等缺陷发展到一定程度时，齿轮每转I圈就会相互撞击1次，产生明显的冲击现象。每一次撞击相当于I个脉冲激励，脉冲响应函数为齿轮固有的衰减振动，从而构成了周期性较高频率的冲击振动信号，循环周期就是轴的旋转周期，衰减振动频率就是齿轮的固有频率。
②齿面点蚀、崩齿。齿轮在啮合过程中，尤其是因为齿轮磨损、齿隙增大时都会产生啮合振动，振动频率为齿轮啮合频率。例如:某点出现缺陷(如点蚀、崩齿)时.齿轮啮合过程中产生短期的“加载”、“卸载”效应，产生幅值调整和频率调整信号，其在频域上表现为以啮合频率为中心，以轴的旋转频率为间距的一组谱线，即边频带。

康宁街道TUNGLEE电机5L15-2创进致远

康宁街道TUNGLEE电机5L15-2创进致远

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康宁街道TUNGLEE电机5L15-2创进致远
软模具制作完成后还要制作石膏或者玻璃钢外套来支撑软模注意：模线选择：选择在不影响产品外观的位置；选择在灌浆后容易加工的位置；选择模具本身易于拆模的位置；选择产品不易变形的位置切不可为赶生产进度而盲目加大硬化剂的用量，否则将极大减低模具的使用寿命。模具应用中遇到的常见问题：1.模具为什么会出现翻模次数少？在制作模具过程中添加了太多的硅油，硅油破坏了的分子量，所以模具会出现翻模次数少不耐用等现象。


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