What is the difference between automotive forging parts and automotive casting parts? Please provide an actual production case to illustrate it.
Both automotive forging parts and automotive casting parts are common manufacturing methods for producing auto parts. There are many differences between them in terms of shape, process, performance, etc.
Automotive forging parts are manufactured by compressing and deforming metal materials at high temperatures to make parts of the required shape. During the forging process, the crystal structure of the material is re-arranged, giving the forging excellent mechanical and fatigue properties that can withstand high strength and pressure. For example, important parts such as automotive crankshafts, connecting rods, spindles, and transmission gears are usually produced using forging technology. The surface roughness of forgings is relatively high and further processing is necessary to meet design requirements.
Automotive casting parts are formed by injecting molten metal or alloy into a mold at high temperatures and solidifying at room temperature. Compared with forgings, castings can produce parts with more complex shapes and require less subsequent processing. However, due to the occurrence of hot cracks and bubbles during the preparation process, the material properties of castings are slightly inferior to those of forgings. Complex components such as automotive engine cylinder blocks, crankcases, turbochargers, hydraulic pumps, and clutch housings are usually produced using casting technology.
It should be noted that the distinction between automotive forging parts and automotive casting parts in actual production is sometimes relatively blurred. For example, manufacturers can perform different forms of plant processing to enhance the strength of castings to meet specific performance requirements, such as surface curing and heat treatment.
In conclusion, both automotive forging parts and automotive casting parts are commonly used technological methods in the production of automotive parts, each with its own advantages and disadvantages depending on the application scenario.
