German hubert funke springs, hubert funke models, hubert funke prices

hubert funke spring is a new type of elastic component that uses high-pressure nitrogen as the working medium. It features compact size, high spring force, long stroke, smooth operation, precision manufacturing, long service life (one million cycles), flat force curve, and no need for pre-loading. It performs tasks difficult for conventional elastic components such as metal springs, rubber, and air cushions, simplifies mold design and manufacturing, facilitates mold installation and adjustment, extends mold service life, ensures stable product quality, and can be designed as a nitrogen spring system to participate in operations as part of the mold. It allows easy implementation of constant pressure and delayed action within the system, making it an ideal new-generation elastic component with flexible performance.

hubert funke spring influencing factors

Springback includes angular springback and curvature springback, resulting from the combined effect of springback in the bending deformation zone and the non-deformation zone. Many factors influence springback, mainly: (1) mechanical properties of the material σs; Eo the higher the σs, the smaller the E value, the greater the bending springback; (2) degree of deformation r/t. Under identical conditions, angular springback increases with increasing r/t value, while curvature springback decreases with increasing r/t value; (3) bending center angle α o a larger bending center angle α results in greater springback angle; (4) die clearance Z larger clearance between punch and die results in greater springback; (5) bending method. Free bending results in large springback, corrected bending results in smaller springback, and full-form upsetting bending results in the smallest springback; (6) workpiece shape and material microstructure state. Complex shapes with mutual constraints result in smaller springback, while springback is greater after cold work hardening; (7) die structure and magnitude of blankholder force. Greater blankholder force results in smaller springback after bending.

hubert funke spring structural classification

Based on loading characteristics, springs can be classified into tension springs, compression springs, torsion springs, and bending springs. Based on shape, they can be classified into disc springs, ring springs, leaf springs, helical springs, truncated conical volute springs, and torsion bar springs. Based on the manufacturing process, they can be classified into cold-coiled springs and hot-coiled springs. Ordinary cylindrical springs are widely used due to simple manufacturing, adaptable configurations based on load conditions, and simple structure. Spring manufacturing materials should generally have high elastic limit, fatigue limit, impact toughness, and good heat treatment performance. Commonly used materials include carbon spring steel, alloy spring steel, stainless spring steel, copper alloys, nickel alloys, and rubber. Spring manufacturing methods include cold coiling and hot coiling. Spring wire diameters less than 8 mm are generally cold-coiled, while those greater than 8 mm are hot-coiled. Some springs undergo strong pressing or shot peening after manufacturing to improve load-bearing capacity.

hubert funke spring classification

1) Standard disc springs, trapezoidal cross-section disc springs, conical trapezoidal cross-section. Disc springs: simple shape and structure, widely used. They can be used individually, in opposed pairs, in stacked combinations, or as composite disc spring assemblies to withstand static or variable loads, serving as high-force buffer and vibration-damping springs in heavy machinery, aircraft, artillery, and other weapons. 2) Diaphragm springs: mainly used in automotive clutches, consisting of two parts: the separation fingers and the disc spring. 3) Wave washers: extensively used in mechanical seals; they 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: with a circular plate cross-section, deforming into a truncated cone shape under load. Simple structure, high stiffness, used in 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 stacking wave washers into a cylindrical shape, enabling greater deformation.

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