G
GRISHAG
We are “build to print” subcontractor for producing of metal machined parts.
We have been working with one of our customers for many years. When concentricity and precision of two drilled holes is required, usually they are drilled in each part to small diameter (according to customer drawing), and then assembled and the holes enlarged later according to assembly drawing requirements. Usually, the following sentences in assembly drawings appeared to enlarged diameter: “drill in line” or “two concentric holes” or “drill and rean in line through two pilot holes”.
In our case there weren’t such notes in assembly drawings. In each separate part was requirement to drill small hole (diameter 40 mm), and assembly drawing showed final precision diameter of 46+0.02 mm in both parts, assembled “face to face”. In fact we drilled final precision diameter 46+0.02 mm of hole in each part separately.
As a result, we received customer complaint, that final precision holes in two parts were machined separately. Is there a place for customer complaint in this special case?
We have been working with one of our customers for many years. When concentricity and precision of two drilled holes is required, usually they are drilled in each part to small diameter (according to customer drawing), and then assembled and the holes enlarged later according to assembly drawing requirements. Usually, the following sentences in assembly drawings appeared to enlarged diameter: “drill in line” or “two concentric holes” or “drill and rean in line through two pilot holes”.
In our case there weren’t such notes in assembly drawings. In each separate part was requirement to drill small hole (diameter 40 mm), and assembly drawing showed final precision diameter of 46+0.02 mm in both parts, assembled “face to face”. In fact we drilled final precision diameter 46+0.02 mm of hole in each part separately.
As a result, we received customer complaint, that final precision holes in two parts were machined separately. Is there a place for customer complaint in this special case?