Die Spring Manufacturers & Suppliers In India.
DIE SPRING MANUFACTURERS & SUPPLIERS IN INDIA
Die Spring Information-
Die springs are manufactured from rectangular wire with rounded corners. Die springs work similarly to standard compression springs, where energy is stored when a load is applied and the spring tries to keep two components separate. A tighter spring winding yields a higher spring rate for springs manufactured from the same wire.
Materials -
Oil-tempered steel is a common material for die springs. Chrome alloys are also common die spring materials, with a chrome layer adding wear and corrosion resistance. Less common, but also much stronger, is chrome silicon or chrome vanadium, which improves dimension accuracy, minimizes individual stress points, and can operate in higher temperatures. These metals allow a pliable layer of colored vinyl to be applied to the spring, indicating a spring's working load.
Die Spring Ends
Die springs have two basic configurations for coil ends, closed and open-end.
Closed-end die springs have their coil pitch reduced to the point where the wire end rests on the adjacent coil. This makes the last coil of the spring incomplete and ineffective. It may slightly alter the spring's compression
Open-end die springs do not have pitch reduction at the point of wire termination. Unless grounded, this creates an uneven surface, but may be unimportant in die machinery.
Dimensions
- Free length is the length of the die spring before it is subject to a load or preload.
- Hole diameter is the outer diameter of the spring, or the overall width of the spring which will increase under compression.
- Rod diameter is the inner diameter of a die spring, which is intended to slide over the guide rod in die machinery.
- Wire diameter is the width of the wire used to make the coil.
Performance -
- Elastic limit is maximum compression a die spring can handle before deformity.
- Preload is the distance of free length reduced by a consistent load on the spring.
- Operating travel is the distance subtracted from the spring length after operating load has been applied.
- Compressed length is the overall length of the spring after the preload and operating travel has been accounted.
Solid height is the length of the die spring when all adjacent coils are resting on each other under load.
Spring rate is the amount of load needed to compress a spring a measure distance. In die springs, this can be measure in thousands of pounds/kilograms.
Applications -
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