Why Does The Spring Break During Use?
Aug 04, 2022| 1. The mandrel is too small or the spring is used horizontally, and the spring and the mandrel are worn and broken.
2. When the mandrel is too small / the assembly surface is uneven / the parallelism of the positioning surfaces at both ends is not good, the spring will be compressed and twisted, and the high pressure will be locally generated and broken.
3. The mandrel is too short and the end is not chamfered, which will cause friction and wear between the spring and the mandrel and break.
4. The use of foreign matter between the spring coil and the coil reduces the actual number of effective coils, resulting in high stress to break it.
5. The springs are used in series to make them bend and exceed the length of the mandrel or countersunk hole, or because of the slight difference in the spring itself, the weaker load will be broken by a larger amount of compression.
6. The use of more than the maximum compression amount will generate high-efficiency stress to break the spring.
7. The spring material is uneven, or the impurity content exceeds the standard, resulting in stress concentration fracture.
8. The spring is over-burned, rusted, too hard, and over-rolled will reduce its tensile and compressive strength and cause breakage.
