There are two commonly used crankshaft manufacturing processes, namely forging technology and casting technology. What are the differences between them? Obviously, a forged crankshaft is a crankshaft produced by an automatic line with a hot die forging press and an electrohydraulic hammer. The cast crankshaft is formed after melting, molding, and electroslag casting.
In the production process of forged crankshafts, the production line will generally adopt advanced cutting technologies such as precision cutting, roller forging, intermediate frequency induction heating, finishing hydraulic press, etc., and it will be equipped with manipulators, conveyor belts, and rotary tables. Auxiliary devices such as die devices form a flexible manufacturing system.
Then through this flexible manufacturing system can automatically replace the workpiece and mold and automatically adjust the parameters, in the course of the work of continuous measurement. At the same time clearly display and record forged crankshaft thickness and large pressure data and compared with the set value, select the amount of deformation to obtain quality products.
When forging the crankshaft, the entire production unit is monitored by the central control room, thus realizing unmanned operation. The forged crankshaft produced by using such technology and equipment has the full fiber property of the inner metal flow line, which can increase the fatigue strength by more than 20%.
Of course, casting crankshaft also has its advantages. The application of electroslag remelting technology to the production of crankshaft makes the performance of the cast crankshaft comparable to that of the forged crankshaft. It has a rapid development cycle, high metal utilization, simple equipment, and superior product performance. Features.