on the other hand, the improper heat treatment operation can not completely relieve the casting stress and remnant stress, and further enhances generation and expansion of cracks.
另一方面,热处理工艺不当使得铸造应力及机加工的残余应力无法彻底消除,这样加剧了裂纹的产生和扩展。
mechanical stress can obviously affect intensity, distribution of stress through the experiments and tests. the produce and form of casting stress are affected.