German eberspaecher springs, eberspaecher models, eberspaecher prices

eberspaecher springs are a new type of elastic component that uses high-pressure nitrogen as the working medium. They feature compact size, high spring force, long stroke, smooth operation, precision manufacturing, long service life (one million cycles), a flat force-displacement curve, and no need for preloading. They perform tasks that conventional elastic components such as metal springs, rubber, and air cushions struggle to accomplish, simplifying mold design and manufacturing, facilitating mold installation and adjustment, extending mold service life, and ensuring stable product quality. They can also be configured as a nitrogen spring system to function as part of the mold, enabling constant pressure and delayed action within the system. They represent the next generation of ideal elastic components with flexible performance.

eberspaecher spring classification

1) Based on the characteristics of the load during operation, helical springs are classified into compression, extension, and torsion types; 2) Based on structural features, they are divided into two main categories: cylindrical helical springs and variable-diameter helical springs; variable-diameter helical springs primarily bear compressive loads; 3) Based on shape characteristics, they are classified as conical, volute, concave, and convex. 4) In production and use, helical springs are further divided into large and small helical springs based on forming method and material diameter; the former are typically hot-formed, while the latter are cold-formed. 5) Other classifications: Helical springs have many types. By external shape, they are divided into ordinary cylindrical helical springs and variable-diameter helical springs. By helix direction, they are divided into left-hand springs and right-hand springs. Variable-diameter helical springs include conical helical springs, volute helical springs, and concave helical springs. Cylindrical helical springs have a simple structure, are easy to manufacture, and are the most widely used. Their characteristic line is linear, allowing them to serve as compression, extension, and torsion springs. When the load is high and radial dimensions are limited, two compression springs with different diameters can be nested to form a combination spring.

eberspaecher spring measures to control springback

1) Select materials with good bending performance: Using materials with low yield limit and high elastic modulus for bending parts yields higher bending quality. Additionally, the thickness tolerance of the blank, surface quality, and flatness significantly affect bending springback. For workpieces with high bending precision requirements, the quality of the blank in these aspects must be carefully selected. 2) Select a smaller relative bending radius: A small r/t value indicates a high 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 helps reduce springback, but an excessively small radius may cause cracking in the bending zone. The minimum bending radii provided in references are primarily empirical data and can serve as a reference for sheet metal designers when determining the bending radius of workpieces. 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 as the die clearance decreases. For workpieces requiring high bending precision, the single-side bending clearance can be set to Z = t; if higher bending precision is needed, employing bending with slight thinning is more effective in reducing springback. Because zero or negative clearance bending changes the stress state of the sheet metal, converting ordinary bending into draw bending, the inner side of the neutral layer of the blank is under compressive stress, resulting in tensile stress across the entire cross-section in the tangential direction. After unloading, the springback of the inner and outer fibers cancels out, reducing springback (see Figure 4). Therefore, using draw bending processes and dies with adjustable clearance is beneficial for controlling springback. 4) Design reasonable workpiece shapes: U-type bent parts exhibit less springback than V-type parts. Complex workpiece shapes involve significant mutual constraint between parts, making springback difficult to predict. Thus, ?-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 bent parts not only increases stiffness but also reduces springback. 5) Adopt appropriate microstructural states: Materials after cold working hardening exhibit large bending springback. For bent parts with high precision requirements where the blank has undergone cold working hardening, annealing should be performed before bending. Where necessary and permissible, heating the blank during bending can eliminate springback for thicker blanks. The springback angle in corrected bending is significantly smaller than in free bending, and greater correction force results in less springback. 6) Correct the punch shape for bending: This is because the correction bending force concentrates the punching force in the bending deformation zone, forcing the inner metal layer to be compressed. After the sheet is corrected, both inner and outer fibers are elongated and shorten upon unloading. Since the springback trends of the inner and outer layers are opposite, the net springback is reduced, thereby overcoming or minimizing springback. Hence, corrected bending is a bending method similar in nature to draw bending, with a broader application range. Generally, the punch for corrected bending adopts the shape shown in Figure 5.

eberspaecher spring applications

1) For blacksmiths: Because leaf springs are made from higher-quality steel, they are a preferred material for blacksmiths. In countries such as Nepal, Bangladesh, the Philippines, and Pakistan, where traditional blacksmithing still produces a large volume of tools, leaf springs from scrapped vehicles are often used to make knives and other tools. 2) Used in trampolines: Leaf springs have replaced traditional coil springs in some trampolines (known as soft-edge trampolines), improving user safety and reducing the risk of concussion. Leaf springs are spaced around the frame's "legs," branching from the base frame to suspend the jumping mat, thereby providing elasticity. 3) Used in clutches: The "diaphragm" commonly found in automotive clutches is a type of leaf spring.

Weidou Intelligent Technology specializes in selling German eberspaecher compression springs, eberspaecher extension springs, eberspaecher helical springs, eberspaecher wave springs, eberspaecher constant force springs, eberspaecher torsion springs, eberspaecher bending springs, eberspaecher disc springs, eberspaecher ring springs, eberspaecher leaf springs, eberspaecher torsion bar springs, eberspaecher tension springs, eberspaecher retaining rings, eberspaecher tension springs, eberspaecher die springs. All eberspaecher products are original imports from Germany. Customers are welcome to inquire and place orders.