A heavy forging is when a large piece of metal is stressed and shaped to serve its purpose. This force is typically achieved through the use of a hammer or pressure. The forging process builds a refined grain structure and improves the physical properties of the metal. In real-world use of the component, a proper design enables particle flow in the direction of the main pressure.
Heavy forgings should be paid attention to during the forging process including:
1. The process should be complete:
Heavy-duty forgings generally cut the material to the desired size, heat, forge, heat treat, clean and inspect, and although the working conditions vary by forging form, there are certain common characteristics, such as moderate physical labor, dry and hot microclimates The environment produces noise and vibration, and the air is polluted by smog. Therefore, in large forging workshops, the hazards vary from job to job, so it is necessary to strictly follow the procedures.
2. Pay attention to safety:
Workers are exposed to high temperature air and heat radiation at the same time, which leads to the accumulation of heat in the body. The heat plus the heat of metabolism will cause heat dissipation disorders and pathological changes. The amount of perspiration for an 8-hour labor will vary with the small gas environment, physical exertion, and degree of thermal adaptability, generally between 1.5 and 5 liters, or even higher. In smaller forging shops or farther from the heat source, the Berja II heat stress index is usually 55~95, but in large forging shops, the working point near the heating furnace or drop hammer may be as high as 150~190. May cause salt deficiency and heat cramps. Exposure to changes in the microclimate environment during cold seasons may promote adaptation to some extent, but rapid and too frequent changes may pose a health hazard.