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为何采用CBN砂轮磨削齿轮

  以前磨削齿轮都是采用单齿面磨削或者多齿面磨削,单齿面磨削虽然可获得较高的加工精度,但效率低,成本高,多齿面磨削虽生产效率高,但其加工质量比单齿磨削差。若采用CBN砂轮磨削齿轮,不论采用单齿面磨削还是采用多齿面磨削,效果都会极为显著:

   1、因为要制作较高精密的齿形,就一定要获得稳定的导程、齿廊和节距精度。而CBN砂轮耐用度高,修整不频繁,且机床也不需要经常调整,所以要制成精度比较高的齿形可以用CBN砂轮。

   2、CBN砂轮能高进给率磨削与高速磨削齿面,而不会产生烧伤的同时粗糙度也低,可以在提高磨削效率的条件下获得6-7级这种较高精度的齿轮精度。

   3、因CBN性质的关系,所以CBN砂轮磨削性能很好,寿命也长。这样就节省了砂轮修整更换、调整机床和检测工件等等的许多时间。

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