The two thrust bearing foundations to port and starboard, each over 2,000 mm long, were milled to a roof shape at a specified angle to one another.
If you think the angle was the tricky part, think again.
Project Description
Technical Requirements
The main technical requirement on this project was producing exactly the right angle on the surfaces so the yard could fit the thrust bearings using shim plates.
With shim plates in particular, the surfaces must be homogeneous and flat, so that scraping during the fitting of the plates doesn’t become unnecessarily hard work. That means taking special care that the surfaces don’t dish (sink in the middle) when machining with a large milling head. We’ll admit it: that’s less trivial than it sounds.
But as proper MachiningRockstars, that sort of thing doesn’t rattle us.
Work Performed
- Flatness measurement of the existing surfaces in their as-found condition.
- Setting up the milling machine to the specified angle.
- Milling the surfaces.
- Measuring the surfaces for flatness and angle.
