The forging and development of Forged Steel Crankshaft
A crankshaft is an essential component in an internal combustion engine.The crankshaft is the part that converts the reciprocating motion of the pistons into rotary motion to drive the crankshaft and is an important component for maintaining the normal operation of the engine.Forged steel crankshafts are made by iron and steel, inducing carbon into the iron by rapid solidification and then hammer forging, and then grinding and quenching.
The purpose of making forged steel crankshafts is to ensure the hardness, density and strength of crankshaft materials.Hardness can guarantee the wear resistance of crankshaft and heat resistance of crankshaft materials; Density can reduce the friction.After quenching treatment, the crankshaft parts obtain the core hardness and surface hardness required by the user.
The production process of forged steel crankshaft is a complex integrated process. It includes three processes: pressurizing and forming, peening and balance.In forming and processing by high-pressure forging technology, steel can be formed at one time, which can produce a complex shape, which can achieve better dimensional accuracy and mechanical properties.
In the actual production of forged steel crankshafts, the forging die of the forging equipment is designed in a 3D technique and the corresponding forging mold is stamped out by a CNC machine tool.The forging process involves a number of necessary steps, including material preparation, die preparation and forging production.Material preparation includes cutting, cutting, boronizing and other processes, while die preparation includes die design and modification, blanching and other processes.
After passing through the forging process, the forged steel crankshaft is placed in a quenching tank for quench cooling and then sent to the grinding and balancer to remove burrs and other surfaces.In the grinding and balaner, the grinding surface is finished with grinding wheel and notched surface is finished with electroplated wheel.The balancer can lead the position to determine the imbalance of the crankshaft and process it according to the requirement.
The development of forged steel crankshaft has a far-reaching impact on the development of the automobile industry. In the design and manufacture of forged steel crankshafts, we have studied various factors such as strength, stiffness and durability.The improved structural design of crankshaft is to enhance strength under certain load, reduce deformability, improve material structure and avoid breakage of forged steel crankshaft, which ensures the safety of the entire engine and maximizes the use efficiency of engine power.
In recent years, with the rapid development of forging technology, there are more and more materials and molds applied in the production process of crankshaft, which can provide support for the efficient production of crankshaft.At the same time, precision measurement and test technology is used in the manufacturing process of crankshaft, which can effectively ensure the performance of crankshaft and reduce potential safety risks.
In summary, the forging and development of forged steel crankshaft has made an indelible contribution to the development of the automobile industry. The multifactor design and testing technology used in the process of production has enabled us to produce crankshafts with four characteristics such as strength, stiffness, wear resistance and durability.This not only brings great safety to cars, but also greatly improves the power efficiency of the car engine.
