Qu’est-ce que le Shaft ?
Shaft is a fundamental element of a machine. It serves as a support in rotating parts like Engrenages et poulies et itself is supported by bearings resting in the rigid machine housing. The Engrenages et poulie which is placed on shaft help in transmitting the motion. Many other rotating elements are mounted on the shaft by the help of key. They are subjected to bending moment et torque due to the reactions on the members which is supported by the shaft et torque due to the transmission de puissance. Les arbres sont généralement conçus comme des barres cylindriques étagées, ce qui signifie qu’ils ont différents diamètres sur leur longueur, bien que des arbres à diamètre constant soient faciles à produire. Les arbres étagés correspondent à l’amplitude de la contrainte qui varie sur la longueur.
Comment choisir le matériau ?
The material used for ordinary shafts is mild steel. When high strength is required, alloy steel such as nickel, nickel-chromium, or chromium-vanadium steel is used. Shafts are generally formed by hot rolling et finished to size by cold drawing or turning et grinding.
Le matériau utilisé pour les arbres doit avoir les propriétés suivantes :
Il doit avoir une résistance élevée.
Il devrait avoir une bonne mécanisation.
Il doit avoir un facteur de sensibilité faible.
Il doit avoir de bonnes propriétés de traitement thermique.
Il doit avoir des propriétés de résistance à l’usure élevées.
The materials used for regular shafts are carbon steel of grade 40, 45, 50, et Stainless steel P17-4 et etc. The cnc turning motorcycle shafts we produced are 4140 wwith black zinc coating for corrosion resistance.
What's the application of shaft?
- Industrie automobile : In automobiles, shafts are used in engines, transmissions, et drivetrains. For example, the driveshaft transmits power from the engine to the wheels, while the camshaft controls the opening et closing of the engine's valves.
- Industrie aérospatiale: In aircraft, shafts are used in engine components such as turbines et compressors, as well as in flight control systems such as ailerons et elevators.
- Machines industrielles : In industrial machinery, shafts are used in a wide range of applications, such as pumps, compressors, et conveyors.
- Production d’énergie : In power generation systems such as wind turbines et hydroelectric power generators, shafts are used to transmit mechanical power from the rotor to the generator.
- Dispositifs médicaux : In medical devices such as surgical instruments et implants, shafts are used to transmit motion et force between different components.
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How to produce Shaft?
Overall, shafts are critical components in many mechanical systems et are essential for transmitting power et motion between different components. Their precise design et manufacturing are critical to ensuring that they operate reliably et efficiently. CNC Turning is one of the primary manufacturing techniques used for producing shafts due to its ability to create complex geometries with tight tolerances. The precision et solid steel shafts can be machined by Swiss-type machine. Swiss-type machine is a highly automated lathe, which can produce round et long parts, like shaft et pin, in one procedure. There are two spindles on a swiss-type machine et while one is cutting the material, the other one is in preparation, et as soon as the material ready, the secondary spindle will rotate et process the material. It's said that one end inputting the material et the other end outputting the finished product. For achieving concentricity et roundness, the rotating tools should be facing each other in centerline. It’s highly a aautomated et accurate. Transmission shafts et motors are usually made by this process. Learn more about our CNC lathe production capability.
Ressources
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