Dalian castings, as a common production process, have a wide range of applications in various industries. Its complex and diverse shapes, wide size range, good processability, and low cost make castings play an important role and position. However, castings still face some challenges and room for improvement, such as defect issues, quality control, and environmental protection. Therefore, continuous innovation and improvement are needed to improve the quality and performance of castings and meet the demand of modern industry for high-quality parts.
Casting materials are an important component of castings. According to their usage and requirements, common casting materials include cast iron, cast steel, aluminum alloy, magnesium alloy, etc. Cast iron is a commonly used casting material with good wear resistance and cutting performance, widely used in the mechanical manufacturing industry. Cast steel has high strength and corrosion resistance, and is commonly used in the fields of automotive manufacturing and aerospace. Aluminum and magnesium alloys have the characteristics of light weight and high strength, and are widely used in fields such as aerospace and automotive manufacturing.
Precision casting technology for Dalian castings: How to manufacture castings with complex shapes?
Mold design is the key to precision casting technology. Complex shaped castings require precise molds to ensure the quality of the final product. Mold design needs to consider factors such as the shape, size, and wall thickness of the parts, and reasonably determine the mold cavity and pouring system to achieve good casting results. The commonly used methods in modern technology include computer-aided design (CAD) and computer-aided manufacturing (CAM), which can improve the accuracy and efficiency of mold design.
Secondly, the control of melting and casting processes is also an indispensable part of precision casting technology. Casting is the process of moving metals from liquid to solid, and requires high control over melting and casting processes. The melting process requires controlling factors such as melting temperature, melting time, and the ratio of melting materials to ensure the purity of the metal and the stability of its chemical composition. The casting process requires controlling parameters such as temperature, cooling rate, and preloading of the mold to obtain a uniform microstructure and good surface quality.
Again, rough machining is one of the key links in precision casting technology. Blank refers to the basic component after casting, which usually requires multiple precision machining processes to obtain the final shape and size. Rough machining involves processes such as turning, milling, drilling, and cutting. The application of automated machining technology can improve machining accuracy and efficiency, thereby ensuring the quality of complex shaped castings.
Castings have the following significant characteristics. The shapes of castings are complex and diverse, and can produce parts with complex structures such as curved surfaces, cavities, and holes. This provides greater freedom and creative space for the design and manufacturing of modern mechanical products. Secondly, the size range of castings is wide, ranging from a few millimeters to several tens of meters, which can almost meet various size requirements. This makes the application range of castings very wide in various industries. Again, the casting process is good and can meet the requirements of different materials. Whether it is metal materials such as iron, aluminum, copper, or high-temperature alloys such as titanium alloys and nickel based alloys, they can all be manufactured through casting processes.
