1. 1，The difference between forging and casting

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4. (1) Casting: Transforming shapeless molten metal into a shaped solid Casting is akin to playing with wax. You purchase wax (scrap steel or pig iron) and then transform the wax into liquid, pouring it into a mold to obtain objects of varying shapes. (Solid-Liquid-Solid) Forging resembles the process of making pancakes. You knead small pieces of dough and place them into molds to create products of diverse shapes. It is essentially solid and can morph into different shapes (solid to solid) at high temperatures. Casting is the process of pouring molten metal into a mold to obtain a casting. The casting profession emphasizes the metal smelting process and technology control during casting. Forging is a plastic forming process in the solid state, categorized into hot working and cold working. Extrusion, drawing, roughening, punching, etc., fall under dry forging.

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6. (2) Forging involves slow forming, whereas casting achieves forming in a single step. Casting: Molten liquid metal fills the mold cavity and cools, but air holes may occur in the middle of the product. Forging: Mainly formed through extrusion at high temperatures, allowing for grain refinement in the parts.

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8. 2，The difference between casting, forging, stamping, and die casting

9. (1) Casting involves melting raw materials, allowing them to naturally take shape in the mold. Forging: Involves heating raw materials to a specific temperature and then using tools to forge them into shapes. Stamping: Shapes the raw material using a suitable stamping die. Die casting: Based on casting, it utilizes pressure to inject melted raw materials into molds, achieving higher density or more precise shapes. Casting: Molten liquid metal fills the mold cavity and cools, with the potential for air holes in the middle of the product.

(2) Forging: Mainly formed through high-temperature extrusion, allowing for grain refinement in parts. The thickness of the parts is generally uniform, suitable for forming from sheet metal and stamping. Parts with varying thicknesses, intricate shapes, and those not requiring heat are suitable for die casting.

1.Casting is classified into two types: high-pressure casting and low-pressure casting. Simply put, the difference lies in the pressure applied to the melted metal and the temperature and machinery used for casting.

2.Forging is also a method of casting, with the distinction that forging occurs at a lower temperature. Some methods enable the transformation of metal into finished products in a semi-molten state.

3.Stamping is the process of converting semi-finished products into finished products at normal temperatures using machines like punches.

4.Die casting is also a high-temperature casting method. When dealing with castings featuring complex structures and high difficulty, a die-casting machine is employed to heat the metal to a liquid state, inject it into the mold, and after cooling, the mold is opened to retrieve the product.