custom forged parts
What is open die forging
Open die forging is one of the methods of metal forging. Open die forging is mainly used for parts with complex and large sizes. During open die forging, the die is open. When the open die forging die is designed, the die cavity has an opening, and the excess metal will form flash. During forging, the metal material is stretched, extruded, etc. through the opening part of the die to achieve changes in the size and appearance of the metal material.
Process principle of open die forging
The process principle of open die forging is very simple. The metal liquid flows in the die, and the excess metal will flow to the side groove to form flash. The flash outside flows more, and the die sample inside has been formed. Finally, the excess flash is cut off to get a complete forging.
Open die forging process
Like conventional die forging, first heat the metal blank to a suitable forging temperature (the temperature should be selected according to the material), then put the heated blank into the lower die, and press the upper die down to deform the blank and fill the die cavity (excess metal is squeezed out from the gap of the die to form flash.) The last step is trimming, and then the forged blank is obtained.
Characteristics of open die forging
First, the die design is relatively simple and the cost is relatively low. Open die forging can forge blanks with complex dimensions, and its application range is very wide. It is widely used in the automotive industry, construction equipment industry, and engineering machinery industry. Secondly, the principle utilization rate is low, mainly because trimming is required, which will cause waste of raw materials and cause one more process in the processing. Another point is that the accuracy is not high, mainly because of open die forging. The die is open, and the accuracy will be reduced.
Application of open die forging in automobile forging
Open die forging is widely used in automobile forgings. The main parts of automobiles are forged using open die forging. Engine parts: Engine parts: crankshaft, connecting rod, camshaft, piston pin, chassis parts Steering knuckle, control arm, automobile transmission parts: gearbox gear, drive shaft, etc. Open die forging is suitable for the development of the automotive industry, suitable for forging complex automobile parts, and also suitable for mass production.
Application of open die forging in engineering machinery
The general working environment of engineering machinery is very harsh, requiring parts to withstand high loads, impact and wear. Open die forging is often used to manufacture the following key parts in engineering machinery: Transmission system parts: gears, drive shafts, gearbox parts Hydraulic system parts: hydraulic cylinder piston rod, hydraulic valve body Structural parts: track chain track section, supporting wheel, driving wheel Connecting parts: pin shaft, connecting rod, hinged parts Excavation and loading parts: excavator bucket teeth Bucket blade: boom and bucket rod Open die forging is also widely used in other industries, such as petroleum equipment parts, military equipment parts, aerospace equipment parts, power tool parts, etc. There is also a large market in the customized forging market.
Process improvement of open die forging
As the die forging market grows, the requirements for forged parts are getting higher and higher. The process of open die forging is mainly improved from the following aspects. Precision forging, continuously improve the accuracy of forging, reduce the subsequent processing of cutting ratio, and reduce costs New materials; More and more new materials are entering the forging market, and open die forging must adapt to the forging needs of new materials such as high-strength steel and wear-resistant alloys. Innovative design of molds: By optimizing mold design and process parameters, reduce material use while ensuring part strength. The future development direction of open die forging is to save costs for customers and provide customers with high-strength and high-wear-resistant accessories.
