Technologies
Life Fatigue Test
The test is performed with mechanical machines capable of replicating the life of compression and extension springs.
The test frequency is adjustable up to over 10Hz and this allows – if the spring geometry and expected arrow allow it – to perform accelerated cyclic tests (e.g. 10^6 in less than 24h) assessing whether or not the spring will resist during its normal service life.
The test is conducted both at the design/co-design stage to fine-tune the component and at the product approval stage to verify the goodness of the design and for the approval of each individual batch as needed.
100% Sourcing
The 100% selection is made for two reasons:
- cutting process queues where the requirements expressed by customers are stricter than the natural tolerances of the production processes,
elimination of macro-defects in order to align our products with customer requests.
The machines used are equipped with automated feeding systems (vibrating cups with singulators, anthropomorphic robots, etc.) and are mainly based on load cell or camera systems.
Before being discarded, the NC parts are isolated and analysed, as well as the data collected in the sorting machine software.
Failure analisys – SEM
Failure analysis using scanning electron microscopes (SEM) is essential for investigating the failure mechanisms of components and discovering the causes.
The analyses carried out can be both morphological (the fracture surface is studied at high magnifications) and “chemical” (using an EDS probe) in order to search for indicators that can highlight both the type of fracture, e.g. fatigue, ductile, brittle, and the triggers that led to it, e.g. notches, non-metallic inclusions, surface defects, etc.
Each analysis is accompanied by a report including initial assessments, SEM images and conclusions.