The part of a metal that is not melted during cutting, brazing, or welding, but whose microstructure and physical properties are altered by these processes.
在经过切割、铜焊、焊接后，金属中没有熔融的部分，但其微观结构和物理特性已被改变。
But there are many problems in the process of making brazing diamond film tools.
但在金刚石厚膜钎焊刀具的加工过程中，还存在许多问题。
Ion implantation can surely improve the joining ability of the ceramic surface, but the reasons of improving the brazing ability other than the electric conductivity should be found.
离子注入确实可以显著提高陶瓷材料的可焊性，但提高陶瓷材料表面导电性并不是提高其钎焊性能的主要因素。
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