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一、前言高速钢调质,又叫不完全淬火,它是一种改善高速钢铣刀铲削性能的热处理。一般技术要求为HRC34～43。然而实践证明,硬度值为HRC35±1是不合理的,铲齿铲不光,齿形光洁度达不到▽6,从而影响到铣刀的铣削性能;而硬度值高于HRC41时,又给铲齿带来困难,生产效率低,铲刀磨损快,甚至铲不动。其最佳硬度值为HRC38～40,可是要达到这一最佳值是不容易的。工艺不统一是不行的,就是执行同一工艺,不同的人操作上不一样,亦会出现软硬不一的问题。这主要因为高速钢调
First, the introduction of high-speed steel quenched and tempered, also known as incomplete quenching, it is a kind of high-speed steel milling cutter to improve the performance of heat treatment. General technical requirements for the HRC34 ~ 43. However, practice has proved that the hardness value of HRC35 ± 1 is unreasonable, not only shovel shovel, tooth profile less than ▽ 6, thus affecting the mill milling performance; and hardness values higher than the HRC41, gave shovel teeth Bring difficulties, low productivity, fast blade wear, and even shovels. The best hardness value of HRC38 ~ 40, but to reach this optimal value is not easy. Process is not uniform is not enough, that is, the implementation of the same process, different people are not the same as the operation, there will be mixed hardware and software issues. This is mainly due to high-speed steel transfer