Machining Flashcards
What is machining a synonym of? -FW
Wasting.
What does a lathe’s lead screw do? -FW
Synchronise spindle and feed speed of a lathe.
Name a drill that makes a 45 degree angle / chamfer on and existing hole. -FW
Countersinking drill.
What is the best thread for handling changing forces in one direction? -FW
A Buttress thread.
What edge defect does punching create that needs to be filed off? -FW
A burr.
What is feed rate?
-HB
The speed at which the work and tool move relative to each other.
What is the main difference between machining and routing?
-HB
During machining, the work piece moves around the tool which is in a fixed position, this is the opposite for routing.
What can an end mill not do?
-HB
Cut down like a drill.
This is called plunging.
What geometries can be created when deep drawing?
-HB
Cups, Cylinders and Tubes.
Name this thread form: _|¯_|¯_|¯_
-HB
Buttress
How can wasted/machined material be made useful?
- CT🇫🇷
It can be re-used or recycled
How is work held securely during routing?
- CT 🇨🇱🇨🇱
The material needs to be clamped to the bench top.
What does a hole saw do?
- CT 🇫🇷🇫🇷
They are accessories that can be attached to drills and allow for large rings to be cut.
What is the purpose of a blank holder during pressing?
- CT
It is used to hold a pre-form sheet in place during pressing, because the much larger clearance than stamping can result in movement.
What mechanical advantage does pressing use?
- HA
Screw threads can force material into shape
