Positional Tolerances
Positional Tolerances
(OP)
Where do i find the "standard" positional tolerances used in the aerospace/aicraft industry? That is, if I want to locate a tooling detail, is there an industry-accepted minimum tolerance applicable for a specified position (e.g the hole must be 5 inches from a datum with a tolerance of +/-0.0x inch)? Is there a table of common tolerances used in the aircraft industry?





RE: Positional Tolerances
RE: Positional Tolerances
For example in my drawing I use concentricity of dia 0.1 mm unless otherwise specified. Tolerances should be functional and only should ensure that the parts and assembly will function. If the standard/general tolerance is what needed then we do not write it within the dimension otherwise always put the maximum tolerance that will still do the job.
A good advice, always try yourself to figure out what is the needed tolerance before you rely on cooked rules. This is the only way to get better understanding.
RE: Positional Tolerances
RE: Positional Tolerances
Best of luck