从第二幅图中可以看出，在相同的冷作量(厚度减少量相同)下，将退火温度从

As can be seen from the second graph, in the same amounts (same reduction in thickness) cold working, the annealing temperature was increased from native (room temperature) to 600 degrees, hardness decreased. This is due to the annealing process softens the copper metal copper. Annealing is a ductile tissue generation and elimination of internal stress during heat treatment, so that the metal more durable and easier to cut. However, the hardness of the copper decreases. Thus, thinning at the same rate, with increasing annealing temperature, the hardness value decreases.

As can be seen from the second image, the annealing temperature is increased from native (room temperature) to 600 degrees at the same amount of cold (the same thickness reduction) and the hardness is reduced. This is due to the annealing process of copper softening the metal copper. Anneisd is a heat treatment that causes tissue to cause ductility and eliminate internal stress, making the metal more durable and easier to cut. However, the hardness of metal copper decreases. Therefore, at the same reduction rate, the hardness value decreases as the annealing temperature increases.

From the second picture, it can be seen that the hardness decreases when the annealing temperature is raised from the original (room temperature) to 600 degrees with the same cold work volume (same thickness reduction). This is because the annealing process of copper softens the copper. Annealing is a heat treatment process that produces ductility and eliminates internal stress in the structure, thus making the metal more durable and easier to be cut. However, the hardness of copper decreases. Therefore, at the same thinning rate, the hardness decreases with the increase of annealing temperature.<br>