German autozentrum hdu springs autozentrum hdu models autozentrum hdu prices

autozentrum hdu wave springs are elastic elements with multiple peaks and valleys on a thin metal ring. They are typically applied in scenarios where the load and deformation are small, requiring low spring stiffness and the application of axial preload. Wave springs are particularly suitable for weight-sensitive applications and those constrained by limited installation space. Typical application areas include aerospace, precision machinery, hydraulic seals, and high-end motors. This product is a thin, ring-shaped elastic metal component composed of multiple peaks and valleys. It is made from high-quality spring steel 65Mn (60Si2MnA/50CrVA /0Cr17Ni7Al /SUS304), heat-treated using specific methods. Depending on specific conditions, the hardness is generally controlled between HRC44 and 55. The surface is blackened, providing good elasticity. Wave springs are widely used in industries such as motors, textile machinery, hydraulic equipment, and automotive. They are mainly installed in bearing housings or bores suitable for their nominal dimensions. With minimal installation space, they offer special functions such as noise reduction and vibration damping.

autozentrum hdu Spring Introduction

Designed based on the principle of moment balance. Within the permissible load displacement, the load moment and spring moment remain balanced. For pipes and equipment supported by constant-load hangers, a constant supporting force is provided during displacement, thus avoiding additional stress on the pipeline equipment. Constant-load hangers are generally used where displacement stress needs to be reduced, such as in the main body of power plant boilers, suspended parts of steam, water, flue gas, and air ducts, and burners in power plants, as well as in petroleum and chemical industries where such support is required. It is a mechanical part that works using elasticity. Parts made of elastic material deform under external force and return to their original shape after the force is removed. Also known as "spring". Generally made of spring steel. Springs come in complex and diverse types. By shape, they mainly include helical springs, spiral springs, leaf springs, and special-shaped springs.

autozentrum hdu Spring Rebound Control Measures

1) Select materials with good bending performance: Using materials with a low yield limit and high elastic modulus as bending parts can achieve higher bending quality. In addition, the thickness tolerance of the blank, surface quality, and flatness have a significant impact on bending springback. For workpieces with high bending accuracy requirements, the quality of the blank in these aspects must also be screened. 2) Select a smaller relative bending radius: A small r/t value indicates a large degree of deformation. Generally, when r/t ≤ 3-5, it is considered that the bending zone of the sheet metal has fully entered the plastic state. A smaller bending radius is beneficial for reducing springback, but an excessively small bending radius may cause cracking in the bending zone. The minimum bending radii for materials provided in references are primarily empirical data and can serve as a reference for sheet metal designers when designing workpiece bending radii. 3) Select the required die clearance: For V type bending, the clearance value is achieved by high-speed machine tools and is independent of the die itself. For U type bending, springback decreases as the die opening depth increases, and springback decreases as the die clearance decreases. For workpieces with high bending accuracy, the single-side bending clearance can be set to Z = t; if higher bending accuracy is required, adopting bending with slight thinning is more effective for reducing springback. Because zero or negative clearance bending can change the stress state of the sheet metal, transforming ordinary bending into bending with tensile-bending characteristics, creating a compressive stress state on the inner side of the neutral layer of the blank, so that the entire cross-section of the blank is in a tensile stress state in the tangential direction. After unloading, the springback of the inner and outer fibers cancels each other out, reducing springback (Figure 4). Therefore, adopting tensile-bending processes and dies with adjustable clearance is highly beneficial for controlling springback. 4) Design reasonable workpiece shapes: U type bent parts have less springback than V type parts. Complex workpiece shapes involve more mutual constraints between parts, making springback difficult to control. Therefore, ?-type springback is smaller than U type. If suitable stiffening ribs are pressed at the bending location, springback is further reduced. Therefore, flanging or hemming treatment of bent parts can both increase stiffness and reduce springback. 5) Adopt suitable microstructural states: Materials after cold working hardening have large bending springback. For bent parts with high accuracy requirements where the blank has cold working hardening, annealing treatment should be performed before bending. Where necessary and permissible, heating during bending should be used for thicker blanks to eliminate springback. The springback angle in calibrated bending is significantly smaller than in free bending, and the greater the calibration force, the smaller the springback. 6) Calibrate the punch shape for bending: This is because the calibration bending force concentrates the punching force in the bending deformation zone, forcing the inner metal layer to be compressed. After the sheet metal is calibrated, both the inner and outer fibers are elongated and will shorten after unloading. Since the springback trends of the inner and outer layers are opposite, the amount of springback will be reduced, thereby achieving the goal of overcoming or reducing springback. Therefore, calibrated bending is a bending method similar in nature to tensile bending, and its application range is broader. Generally, the punch for calibrated bending mostly adopts the shape shown in Figure 5.

autozentrum hdu Spring Classification

1) Ordinary disc springs, trapezoidal cross-section disc springs, conical trapezoidal cross-sections. Disc springs: Simple in shape and structure, widely applied. They can be used individually, in opposed pairs, stacked combinations, or composite disc spring groups, bearing static or variable loads. They are used in heavy machinery, aircraft, artillery, and other weapons as strong buffer and vibration-damping springs. 2) Diaphragm springs: Mainly used in automotive clutches, functioning through the separation fingers and the disc spring part. 3) Wave washers: Extensively used in mechanical seals; can be further developed into spiral wave springs. 4) Slotted disc springs: Typically used in clutches, such as those in lathes, automobiles, and tractors. 5) Circular plate disc springs: The cross-section is circular plate-shaped, deforming into a truncated cone shape under load. Simple structure, high stiffness, used for applications with special requirements. 6) Spiral disc springs: Possess the dual characteristics of disc springs and helical springs, allowing for different stiffness requirements. 7) Wave cylindrical springs (wave springs): Formed by overlapping wave washers into a cylindrical shape, allowing for larger deformation.

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