请教一句的翻译

chip off the cracks to sound metal and then built up by welds, also the keyway. After that, it is to be annealed and recut a new keyway.
划横线的地方是本人尤其不通的地方，汗颜啊

退火处理？。。。。。

annealed 是退火的意思。。。

哦！！！学习了。英语是个问题啊

我也是，英语不好，汗颜啊‘

chip off the cracks to sound metal and then built up by welds, also the keyway. After that, it is to be annealed and recut a new keyway.
切下裂纹（to the sound metal,就是切割至好的金属部分，sound metal优质金属），然后补焊，键槽也用同样的方法处理。之后，退火处理，并再切出一个新的键槽。


这是我根据字面意思翻译的，期待更好的翻译

大概是“火工校正”的意思

真的不懂``````````````````````````````````

退火变硬后，重新切割。。。。。

chip off the cracks to sound metal and then built up by welds, also the keyway. After that, it is to be annealed and recut a new keyway.
刨掉裂纹至缺陷消除,然后补焊,销槽也按照此方法处理,做完这些,要进行退火处理和重开一个新的销槽