A cleanup routine where a machinist uses compressed air to blast chips, dust, and coolant off a machine tool, fixture, or finished part. A thorough blowdown is usually required at the end of a shift or before a new setup to ensure mating surfaces are free of debris that could cause misalignment.
Heard on the job
Give the chuck a good blowdown before you load the next piece so the jaws seat properly.
Also heard as
- Blow down