Influence of Die Casting Process on Hot-crack and its formation mechanism of AM60B alloy are discussed.
分析了AM 60 B合金热裂纹形成的机制，讨论了压铸工艺对AM 60 B合金热裂纹的影响。
2
The main defects of laser spot welding of aluminum are crater, hotcrack and porosity which created by oxide film and keyhole instability,.
焊点中存在的主要缺陷是气孔，表面下塌，热裂纹，其中气孔主要为氧化膜气孔和匙孔不稳定形成的气孔。
3
By strictly clearing up weld zone, improving welding material's purity, strengthening molten pool's shield and controlling energy input etc measures, weld zone's hotcrack and blowhole were prevented.