Spring Manufacturing Processes
In a previous post on our blog, we spoke about some of the different types of materials that we use to create our high performance springs. However, it's not only the materials that make our springs the best, but also our manufacturing processes as well. Here are some of the techniques that we utilise:
Springs are manufactured from one wire, yet high powered machinery is required to refine them to truly precise specifications. Often, the correct shape is achieved only after the material in question has actually cooled, and numerical control or automation is frequently needed to ensure that every spring is totally uniform. Spring forming has also moved on substantially in recent years, not so much in terms of quality, but more in terms of the quantity of products that can be manufactured at speed. With computer assistance now available too, the field of spring manufacture has certainly been revolutionised.
We often use plastic forming when manufacturing our springs; especially when shaping each coil into its completed form. However, this process can sometimes leave negative stresses present, and so we use heat treatment to reduce this danger. Our exact heat treatments can take the form of precipitation hardening, quenching or tempering, and can be utilised in varying capacities; mostly dependent on the material or type of spring being treated.
Every time you look at one of our compression springs, you'll notice that one or two ends of the coil have been ground flat. This is carried out by a procedure we know as 'grinding', and is done to render a spring less prone to buckling. It also looks far neater in appearance and, although aesthetics do not mean that a spring is any more serviceable, we take even the smallest detail of our springs very seriously.
It might never have occurred to you before, but painting springs is far more complicated than simply give them a brief 'once-over' with a spray can. In actual fact, the surface layer of a spring needs compression stress before it can be painted, and a volley of small steel shots is fired at a spring to achieve this. 'Shot Peening' is the name of this undertaking, and the shots are certainly not dispersed at random, but are carefully monitored to expose all surfaces on the spring to equal conditions.
As you can see, we use many precise manufacturing processes to ensure that our springs are the best they can be. We haven't had time to outline all of the techniques we use in this one post, so if you're still interested then you can find out even more by visiting our technical informationtechnical information page. So, whatever type of springs you might need, be they torsion springs or gas springs, we've got it covered. Call us now on +44 (0) 208 663 1800 to find out more about our high quality springs.