Mobike forgings have numerous advantages, which have become the development direction of foundry industry. With the development and progress of aluminum alloy casting technology, it will create more brilliant achievements that attract worldwide attention.

1. The forging process of mobike forgings includes: cutting materials into required sizes, heating, forging, heat treatment, cleaning and inspection. In small-scale manual forging, all these operations are carried out by several forgers in a narrow place. They are all exposed to the same harmful environment and occupational hazards; In large forging workshops, the hazards vary with different jobs. Although the working conditions vary with different forging forms, they have some common characteristics: moderate-intensity manual labor, dry and hot microclimate environment, noise and vibration, and air pollution by smoke.

2. Workers are exposed to high-temperature air and thermal radiation at the same time, which leads to the accumulation of heat in the body. Heat plus metabolic heat will cause heat dissipation disorder and pathological changes. The perspiration amount of 8 hours' labor will vary with the small gas environment, physical consumption and thermal adaptability, generally between 1.5 and 5 liters, or even higher. In a small mobike forging workshop or far away from the heat source, the Behaviour thermal stress index is usually 55 ~ 95; However, in a large forging workshop, the working point near the heating furnace or the drop hammer machine may be as high as 150~190. It is easy to cause salt deficiency and heat spasm. In the cold season, exposure to changes in microclimate environment may promote its adaptability to some extent, but rapid and too frequent changes may pose a health hazard.

Air pollution: The air in the workplace may contain soot, carbon monoxide, carbon dioxide, sulfur dioxide, or acrolein, and its concentration depends on the fuel type and impurities contained in the heating furnace, as well as the combustion efficiency, airflow and ventilation.

Noise and vibration: mobike forging hammer will inevitably produce low-frequency noise and vibration, but it may also have certain high-frequency components, and its sound pressure level is between 95 and 115 dB. The exposure of workers to forging vibration may cause temperament and functional imbalance, which will reduce their working ability and affect safety.

What is the difference between forging and casting of aluminum alloy materials?

What are the different processing methods between casting and forging? In the end, all kinds of properties are different. Aluminum alloy casting is a process of pouring molten metal into a pre-made cavity and forming the required shape after solidification. The forging of aluminum alloy is to put the red-hot block metal heated to a certain state (not yet melted) into the cavity and give it a certain pressure to get the required product shape. The forging method mentioned above belongs to die forging. Casting is divided into: pressure casting, investment casting, permanent mold casting, low pressure casting, ceramic mold casting, centrifugal casting, full mold casting, magnetic mold casting, continuous casting, vacuum casting, extrusion casting and graphite mold casting.

Forging is divided into: free forging, die forging, die forging, precision forging, extrusion, upsetting and rolling forging. The raw materials used in casting and forging are different. Forging cannot be used for brittle materials, and only plastic materials can be used for forging. The raw materials for casting are: gray cast iron, nodular cast iron, malleable cast iron, carbon steel, alloy steel, various bronzes, aluminum alloys, stainless steel and so on. The raw materials for forging are: medium and low carbon steel, alloy steel, copper and copper alloy, aluminum alloy, magnesium alloy, titanium alloy, stainless steel and so on.

Advantages of aluminum alloy forging products

Aluminum alloy has been widely used in various industrial sectors due to a series of advantages such as small specific gravity, high specific strength and high specific stiffness, and aluminum alloy forgings have become an indispensable material for mechanical parts in various industrial sectors. All kinds of forgings that can be forged with low carbon steel can be forged with aluminum alloy.

Aluminum alloy can be forged on various forging equipment such as forging hammer, mechanical press, hydraulic press, upsetting machine and reaming machine, and can be forged freely, die forged, upset forged, roll forged and reamed. Generally speaking, aluminum forgings with small size, simple shape and lax deviation requirements can be easily forged on a forging hammer. However, for aluminum forgings with large specifications and severe deformation, it is advisable to use a water (liquid) press for forging. For large and complex aluminum forgings with integral structure, it is necessary to use large die forging hydraulic press to produce them. Especially in recent ten years, with the progress of science and technology and the development of national economy, higher and higher requirements are put forward for materials, which forces the aluminum alloy forging to develop in the direction of large-scale, high-strength, high-toughness, complex and precise, and greatly promotes the development of large and medium-sized hydraulic presses.

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