Preparation of test samples for abrasive corrosion studies
- The customer's order involved the manufacture of a sample for the study of abrasive corrosion according to the following general assumptions and requirements:
- Material: cast nickel superalloy used for the production of low-pressure turbine blades in aircraft engines
- The samples were to be made from entrusted material in the form of scrapped elements – cut-off dovetails of low-pressure turbine blades
- Required geometric tolerance values such as parallelism and perpendicularity of the order of 0.02 mm
- Absence of a recast layer typical for WEDM processing
- The preparation of samples included a range of mechanical processing types, for example unconventional ones.
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The quality control process for the manufactured samples included measurements on a coordinate measuring machine and, finally, tests at the customer's facility.
The use of technologies employed at Salloytech, which made it possible to manufacture the ordered components from the entrusted material (difficult to machine and of irregular shape), will allow for a significant reduction in the unit costs of the samples made in the future.