German LEDUC springs LEDUC models LEDUC prices

LEDUC springs, as elastic elements, are widely used in the suspensions of modern automobiles, including passenger cars, trucks, and off-road vehicles. Compared with leaf springs, torsion bar springs offer a series of advantages: high energy storage per unit mass, which reduces vehicle weight and saves material; since the torsion bar spring is fixed to the frame, it reduces unsprung mass, improving ride smoothness; when applied to the front suspension of front-wheel-drive vehicles, the torsion bar spring can be arranged longitudinally, leaving space for the oscillating half-shafts of the front drive axle. However, the manufacturing cost of torsion bars is relatively high, with strict requirements on materials and processes. In addition, torsion bar springs serve only as elastic elements and must be equipped with guiding mechanisms. Torsion bar springs are made of chrome-vanadium alloy spring steel, and their surfaces are very smooth after machining. The surface of the torsion bar must be well protected during use. Typically, a layer of epoxy resin is applied to the surface of the torsion bar spring, wrapped with a layer of fiberglass cloth, coated with another layer of epoxy resin, and finally coated with asphalt and anti-rust paint to prevent collision, scratching, and corrosion, thereby extending the service life of the torsion bar spring.

LEDUC spring influencing factors

Springback includes angular springback and curvature springback, which is the result of the combined effect of springback in the bending deformation zone and the non-deformation zone. There are many factors affecting springback, mainly including: (1) material mechanical properties σs, the higher Eoσs and the smaller E value, the greater the bending springback; (2) degree of deformation r/t. Under the same conditions, the amount of angular springback increases with the increase of r/t value; the amount of curvature springback decreases with the increase of r/t value; (3) bending center angle αo a large bending center angle α results in a large springback angle; (4) die clearance Z. Large clearance between the punch and die results in large springback; (5) bending method. Free bending has large springback, corrected bending has small springback, and full-form upsetting bending has the smallest springback; (6) workpiece shape and material microstructure state. Complex shapes with much mutual constraint have small springback, while cold work hardening results in large springback; (7) die structure and magnitude of blank holder force. Large blank holder force results in small springback after bending.

LEDUC spring characteristics and functions

1) Wide stiffness range, strong buffering and vibration absorption capacity, and high deformation energy per unit volume of material. 2) Features variable stiffness characteristics. Stiffness can be adjusted by changing the combination of wave peak height, width, and thickness. Stiffness can also be adjusted by varying the number of stacked discs. 3) Compared with disc springs, it offers advantages such as high strength, good flexibility, and strong impact resistance. 4) Compact structural dimensions, requiring less installation space under the same theoretical parameter conditions. Functions: (1) Control mechanical motion, such as valve springs in internal combustion engines and control springs in clutches. (2) Absorb vibration and impact energy, such as buffer springs under automobile and train carriages, and vibration-absorbing springs in couplings. (3) Store and output energy as power, such as clock springs and springs in firearms. (4) Used as force-measuring elements, such as springs in dynamometers and spring scales. The ratio of load to deformation of a spring is called spring stiffness; the greater the stiffness, the harder the spring. Springs are elastic elements widely used in the machinery and electronics industries. When loaded, springs produce significant elastic deformation, converting mechanical work or kinetic energy into deformation energy. After unloading, the spring deformation disappears and returns to its original state, converting deformation energy back into mechanical work or kinetic energy.

LEDUC spring precautions

Due to product structure limitations, multi-strand springs generally feature high strength and good performance. The material must guarantee final performance in terms of spring strength and toughness. During the processing of multi-strand springs, attention should be paid to: 1 Support coils can be closed using either cold or hot closing methods according to product requirements. When using hot closing, the spring must not be heated to the point of sparking or turning white; the temperature for silicon-manganese steel must not exceed 850℃. The support coils and active coils must have effective contact, and the gap must not exceed 10% of the nominal inter-coil gap. 2 The characteristics of multi-strand springs can be determined by adjusting the lead; the pitch can be adjusted as necessary during winding. The pitch can be 3~14 times the wire diameter, but 8~13 times is generally preferred. The spring force is also closely related to free height, closed ends, outer diameter, and wire properties, and can be changed by adjusting one or more of these items. 3 Springs without support coils and springs with excessively thin wire diameters should not have welded ends, but the end cables should not be obviously loose and burrs should be removed. For multi-strand springs requiring welded heads, the length of the welded part should be less than 3 times the cable diameter (maximum not exceeding 10 mm). The heating length should be less than one coil, and the weld should be ground smooth after welding; local low-temperature annealing should be performed on the welded area during gas welding. 4 Spring surface treatment generally involves phosphating, but other treatments are also possible. When zinc or cadmium plating is required, dehydrogenation treatment must be performed after electroplating. After dehydrogenation, 3% (no fewer than 3 pieces) should be sampled for retesting and presetting treatment; no fractures should occur during retesting. Springs should be cleaned of surface dirt, salt marks, and oxide scale, using methods such as sand blasting or gasoline cleaning, but acid pickling must not be used. 5 The compression time for important springs is 24 hours, and for ordinary springs, it is 6 hours or continuous compression 3~5 times, holding each time for 3~5 seconds. During compression, the gap between the spring and the mandrel should be 10% of the mandrel diameter; if the gap is too small, operation is difficult, and if too large, the spring is prone to bending deformation. If one spring breaks during compression, the rest should be reprocessed.

Weidou Intelligent Technology professionally sells German LEDUC compression springs, LEDUC extension springs, LEDUC helical springs, LEDUC wave springs, LEDUC constant force springs, LEDUC torsion springs, LEDUC bending springs, LEDUC disc springs, LEDUC ring springs, LEDUC leaf springs, LEDUC torsion bar springs, LEDUC tension springs, LEDUC retaining rings, LEDUC tension springs, LEDUC die springs, LEDUC original imports from Germany. Welcome customers to inquire and order.