It is recommended that you contact us in order to obtain more accurate measurement details.
Special Linear Tolerances
Methods that can be used if lower tolerances are requested:
Special tolerance feasibility must be evaluated individually for each part and each dimension.
Although our company has the capacity to produce various parts for the aviation industry by performing precision casting with numerous material alternatives, the parts commonly requested from Çevik Teknik Metalürji are;
Planarity – Linearity: Parts can be produced flat and linear within a tolerance of 0.12 mm (0.005″) according to length. In thick sections, this tolerance can increase to 0.25 mm (0.010″).
Circularity: Hole profile is within Normal Linear Tolerances. Special Linear Tolerances can be applied if needed. It is preferable to adopt General Linear Tolerances wherever possible.
Concentricity:It is not more than the diameter difference between the centers of two cylindrical surfaces with common centers multiplied by 0.12 mm (0.005”). If the length of the cylinder is more than twice its diameter, it is necessary to add the straightness tolerance to the concentricity tolerance.
Angularity/Perpendicularity: Normally ± 0.5° is a good tolerance for production. Angular tolerance may be as low as ± 0.25° in some cases, and may increase to ±1.0° in some cases.