Key spring considerations
Selecting the right spring for your project can be a challenge, as there are many factors to consider, from the dimensions of the spring to the environment in which it’s installed. After all, a spring has to improve the performance of a product in a cost-effective way and needs to have a long lifespan and resistance to wear and tear.ability to recycle at end of life.
The spring application: It goes without saying that a spring will have to perform a specific task or function. This means that different springs are used for different applications, so selecting the right one is vital. If you need springs for a mattress, for example, it’s highly likely you’ll choose compression springs above other types.
The right spring size: All springs are not created equal, as they come in a vast array of shapes and sizes. Size has a huge influence in choosing the right spring for your project, so it’s crucial that dimensions are accurate and suited for the end goal of the spring. When designing and manufacturing a spring, it’s important to consider both the inner and the outer diameter of the spring, its free length and its solid height. You also want to consider the spring materials, as that will influence the size of your spring as well.
Resistance to extreme temperatures: This is an important feature for springs. Being able to perform when in extreme cold or heat is essential for many industries, from automotive to aerospace. If your springs have to function in a harsh environment, choosing a durable material that will not weaken or break under low or high temperatures is the first step in spring design. Inconel carbon, for instance, is capable of operating optimally in temperatures up to around 870°C.
Resistance to corrosion: The same is true for corrosive environments. Springs are versatile and used in a wide range of industries and applications, with many having to perform in corrosive settings or in water. For this reason, an important consideration in selecting the material for the spring is its resistance to corrosion. Stainless steels are suitable for this, as are high nickel alloys.
Resistance to magnetic forces: Will your spring have to perform in a magnetic environment? If so, you want its material to be non-magnetic, especially if the parts surrounding it are magnetic, so that it doesn’t oscillate when placed in a piece of equipment or instrument.
For instance, you may need a spring made from stainless steel but still require something that is non-magnetic at the same time; however, stainless steel spring wire is made by cold drawing and will be slightly magnetic when in a spring temper condition.
Common mistakes when designing a spring: Design mistakes can be expensive, especially if they’re found across a high-volume order. They can also be time-consuming, since springs would have to be recalled, redesigned and manufactured again. Airedale Springs have many years of experience in the industry, so we know exactly what to avoid when it comes to spring design and how our clients can save time and money.
Some of the most common mistakes we’ve come across include:
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