Machine Broaching Flashcards
What is broaching
Cutting a profile with a multi tooth tool in one pass
What are the advantages
Fast, accurate, excellent surface finish, intricate profiles
Disadvantages of machine broaching
Tool is expensive, not suited to all profiles
When would you most commonly use broaching
To machine key ways
There is a difference in height of successive teeth on a machine broach. T or F
True
What is the main advantage of a pull broach
Intricate profiles are possible
What is the depth of cut on a broach
The difference between the height of one roughing tooth and the next
When is a coarse pitch helpful
For harder materials
What part of The Broach forms the chip
The radius or gullet
Which of these shapes cannot be broached
Internal spur gear
External splines
External straight knurl
Small bevel gear
External Straight knurl
What is the best cutting fluid for broaching
Cutting oil
Approximately how many roughing teeth are needed to cut a 3/8 inch keyway if the depth of cut per tooth is .004”
.375/2 = .188
47 x .004 = .188
47 roughing teeth
