The error of wedm is to point to the end of the wire cutting cutting finish to the gap between artifacts and expectations.
This gap is likely to come from machine tool accuracy, may come from the deformation of the material may come from calculation error, also may come from calculating the tension control of machine tool error, including: 1, the calculation error: this is the cause of the people, can be checked, can prove, also can be detected early.
Computing among premature rounded, repeatedly using a digit is not irrational (
For example, when many tooth)
, the decimal point and degrees minutes confusion, etc.
2, machine tool control error: occurrence frequency is very few, because current machine control system is proven, mature technology.
Man-made errors will refuse to accept it, accept it down can also verify or back to the zero check before processing.
Cumulative error back to zero by multiple rotating translational check can also be found.
3, material deformation: so long as has the good habits of operation, calculate out to rehearse, input is done to check, before starting to zero, the handwheel scale to check it.
Didn't go wrong mistake, you don't have the machine should have sufficient grasp, remnant is deformation, is the cause of the deformation and overcome to ponder.
4, the accuracy of wedm: this is usually refers to the mechanical precision, the difference is the actual value with the theoretical value.
Have the most direct reason for this difference is return difference and straightness and verticality.
The scope of this difference should be 0.
02 mm less than, this value can be measured, can be adjusted, in terms of current machine tool structure, to make the error value control in 0.
02 below is easy, but want to zero.
Below 005 is very difficult.
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