三、工艺过程中误差的补偿目前,航空发动机齿轮的精加工方法主要采用磨齿和珩齿(或研齿)。工艺过程中误差的补偿,对磨齿加工来说,主要是保证合理的磨齿余量和从每一齿廓上切除均匀的余量;而对珩齿(或研齿)加工来说,却和能否最终达到齿轮的设计精度要求密切相关,因为这些加工方法校正加工前的误差的能力现在还是有限的。因此,有效地补偿加工前的误差极为重要。通常,热处理后修复齿轮的基准(例如磨 Third, the process of compensation for error At present, the aero-engine gear finishing methods mainly use grinding and honing (or grinding). Errors in the process of compensation, on the grinding and processing, the main is to ensure a reasonable grinding allowance and cut from each tooth profile on the uniform margin; and honing (or grinding) processing, but It is closely related to whether or not the accuracy of the design of the gear can eventually be met because the ability of these machining methods to correct errors before machining is still limited. Therefore, it is very important to effectively compensate the error before machining. Normally, the reference of the gear after the heat treatment (eg grinding