German traumina springs, traumina models, traumina prices

traumina springs are elastic elements with multiple peaks and valleys on a thin metal ring. They are typically used in applications where the load and deformation are small, requiring low spring stiffness and 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. They are thin, ring-shaped elastic metal components composed of multiple peaks and valleys. This product uses high-quality spring steel 65Mn (60Si2MnA/50CrVA /0Cr17Ni7Al /SUS304), heat-treated using specific methods. Depending on the specific conditions, 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.

traumina 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) material mechanical properties σs; the higher Eoσs is and the smaller the E value, the greater the bending springback; (2) degree of deformation r/t. Under identical conditions, angular springback increases as the r/t value increases; curvature springback decreases as the r/t value increases; (3) bending center angle αo; a larger bending center angle α results in greater springback angle; (4) die clearance Z; larger punch-die clearance results in greater springback; (5) bending method. Free bending has large springback, corrected bending has smaller springback, and full-form upsetting calibration bending has the smallest springback; (6) workpiece shape and material microstructure state. Complex shapes with more mutual constraint result in smaller springback; springback is greater after cold work hardening; (7) die structure and blank holder force magnitude. Greater blank holder force results in smaller springback after bending.

traumina spring composition

Ring springs are compression springs composed of several inner and outer rings with conical surfaces. Under axial load P, significant normal pressure is generated between the contact surfaces of the inner and outer rings, causing the inner ring diameter to decrease and the outer ring diameter to increase. Due to these changes in diameter, the spring shortens in length. When the external force is removed, since the ring cone angle b is greater than the friction angle, the spring restores its original dimensions under elastic internal forces. When ring springs bear axial P, significant friction is generated between the conical contact surfaces of the inner and outer rings, dissipating considerable energy. In this state, the force-deformation relationship remains linear. During loading, the external force P equals the sum of the spring's internal elastic force and friction force. ABO represents the unloading process, which includes two stages: the AB segment and the BO segment. The AB segment indicates the situation where the load decreases, and the spring's elastic internal force overcomes static friction, gradually restoring the spring to its original state. The inner and outer rings of ring springs are made of high-quality carbon steel or wear-resistant alloy steel. Each ring is roll-formed to the required profile to enhance load-bearing capacity, followed by heat treatment. Ring springs are heavy-duty springs with significant buffering and shock absorption capabilities (the ratio of area OABO to OACO can reach 60～70%). They are commonly used in buffering devices for heavy vehicles, artillery, and aircraft landing gear.

traumina spring manufacturing process

1) Cold forming process automation capability. Cold forming machines have developed up to 12 jaws. Wire within the 0.3～14 mm range can be formed in a single operation on a 8-jaw forming machine. Development directions for forming process equipment: (1) Increase forming speed; the main trend is to improve equipment forming speed, i.e., production efficiency; (2) Improve equipment durability by enhancing the precision of equipment parts and strengthening heat treatment effects; (3) Add length sensors and laser rangefinders to implement automatic closed-loop control of the manufacturing process for CNC forming machines. 2) Cold forming process range capability. Large wire diameter spring coiling machines have a maximum specification of 20mm, =2000MPa, with a winding ratio of 5. Cold forming processes for variable-diameter or constant-diameter Minic-Block springs and eccentric springs still have limitations. 2) Hot forming process speed capability. In China, forming for mm specifications in the (9~25) range is limited to CNC2-axis hot coil spring machines, with a maximum speed of 17 pieces per minute. There is a significant gap compared to developed countries. 2) Control capability for large spring hot forming processes. Due to the exclusive use of CNC2-axis hot coil spring machines, shape control lacks action in three directions, resulting in poor precision. Furthermore, the absence of automatic bar rotation control and adjustment mechanisms leads to lower levels and capabilities in hot coil spring forming processes. Consequently, spring precision levels and surface oxidation/decarburization levels are also lower.

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