Exceeds when the spring is loaded Shear stress the permissible value, a permanent deformation occurs, which manifests itself in the reduction of the unstressed length “L0”. This process is called “setting” in spring technology, which is associated with the properties
Function and strength verification for compression springs
Every spring design of a compression spring consists of two stages : 1. The proof of function, with the verification of the dimensions, spring rate, forces, spring travel and vibration behavior. 2. The proof of strength, with the verification of
Calculate pitch compression spring
The pitch “S” of compression springs, also known as the coil pitch, refers to the distance between their individual coils (wire center to wire center) and is calculated and determined using the following formulas. It is measured parallel to the
Shot peening of metal springs
What is shot peening? Shot peening is a special kind of Surface treatment . In the process, blasting media are accelerated in special systems and hit the surface of the workpieces to be processed, such as Metal springs , steered.
Goodman Chart
The Goodman diagram enables the representation of the Fatigue strength of coil springs. It can be traced back to the Smith chart. This is used to calculate the fatigue strength of dynamically stressed components where the load is pulsating or
Modulus of elasticity in the spring calculation
The modulus of elasticity is a material parameter from materials engineering and defines the slope of the graph in the stress-strain diagram. This characteristic describes the relationship between tension and strain in the deformation of a solid body in a
Types of stress extension springs
Description Formula symbol tension springs Before interpreting the extension spring it must be clarified whether the intended type of stress is a static or a dynamic stress acts. No general fatigue strength values can be given for dynamic loads on
Eyelet shapes extension springs
Here is an overview of the different eyelet shapes for Extension springs after DIN EN 13906-2: 2013 with the respective loop properties. Extension springs should only be subjected to static loads. If higher loads are planned, bent eyelets should be
Design of metal springs – Part 2 “Calculation
In the first part of this two-part series Gutekunst Federn informed about the basics of spring design. In this second part you will find the concrete calculation data for the design of compression springs, extension springs and torsion springs (torsion
Spring steel properties
List of the most important spring steels with material description, operating temperature, modulus of elasticity (E-modulus) and sliding modulus (G-modulus) as well as price index. Compared to other steels, spring steel has a higher strength and can be deformed up