Die is an important tool to manufacture Marine crankshaft forgings, and its design and manufacturing technology has an important impact on product quality and production efficiency. This paper will discuss the key points of mold design and manufacturing technology for Marine crankshaft forgings, in order to provide reference for related enterprises and practitioners.
Key points of mold design
Reasonable selection of materials: The choice of mold materials directly affects the life of the mold and product quality. According to the material, shape, size and other factors of the crankshaft forging, the mold material with high strength, high hardness and wear resistance should be selected.
Precise design: The mold design should accurately reflect the shape and size of the crankshaft forgings to ensure the precision of the match between the mold and the forgings. At the same time, factors such as the difficulty and cost of processing and manufacturing molds should be taken into account.
Structural optimization: The structural design of the mold should be reasonable to avoid problems such as stress concentration and deformation. For key parts, strength and stiffness analysis should be carried out to ensure that the mold is stable and reliable during use.
Cooling system design: The cooling system of the mold plays an important role in controlling the temperature of the mold and reducing the thermal stress. The cooling channel and coolant flow rate should be reasonably designed according to the mold structure and material characteristics to ensure that the temperature of the mold is stable during processing.
Key points of mold manufacturing technology
CNC machining: The use of CNC machine tools for mold processing can achieve high-precision and high-efficiency manufacturing. In the machining process, it is necessary to ensure the sharpness of the tool and the rationality of the cutting parameters to reduce the machining error and improve the surface quality.
Edm: EDM is an effective manufacturing method for molds with complex shapes and fine structures. By selecting the parameters of EDM and controlling the discharge gap reasonably, high quality machining results can be achieved.
Heat treatment technology: The heat treatment of the mold plays an important role in improving its hardness and wear resistance. The appropriate heat treatment process parameters should be selected according to the material and structural characteristics of the mold to ensure that the mold after heat treatment meets the requirements of use.
Surface treatment technology: Coating the die surface can improve its wear resistance and corrosion resistance. Common surface treatment technologies include electroless plating, electroplating, spraying, etc. When selecting the surface treatment technology, factors such as adhesion and durability of the coating should be taken into account.
The die design and manufacturing technology of Marine crankshaft forgings is the key link to ensure product quality and production efficiency. In the process of mold design, it is necessary to select materials reasonably, design accurately, optimize structure and design reasonable cooling system; In the manufacturing process, technical means such as numerical control machining, electric discharge machining, heat treatment and surface treatment should be used to ensure the high-quality and efficient manufacturing of the mold. By mastering these technical points, the production efficiency and product quality of Marine crankshaft forgings can be further improved to meet market demand and promote the development of the industry.
