The New Encyclopedia of Machine Shop Practice, ed. by George W.
Barnwell, starts a chapter with
"Broaching, reduced to its simplest terms, is a method of altering the
size or finish of holes in metallic parts by pulling or pushing thrugh
them a tapered tool with a number of cutting teeth. These teeth become
sucesssively larger as they progress toward one end of the tool, whic is
termed a broach. The alteration of the holes may take the form of their
enlargement, as when a round hole is increased in size by cutting away
with the broach teeth a specific quantity of metal, or it may take the
form of burnishing. "
In another paragraph, "broaching is also employed for making splines".
Bob
On Mon, 18 Jan 1999 20:16:57 -0500 toad <toad@storm.ca> writes:
>Eric Zambori wrote:
>>
>> Is a Broach the British term for a Knurling tool?
>>
>> Eric
>>
>> Susan and John Roper wrote:
>> >
>> > What Neil and others are referring to are bronze guide liners
>installed
>> > by reaming followed be a broach for sizing. Common fix for worn
>guides
>> > to avoid replacement. John
>> >
>> > RJohn50603@aol.com wrote:
>> >
>> > > Neil,
>> > >
>> > > What copper sleeves are you speaking of?
>> > >
>> > > R. Johnson - Dallas
>
>I may not be correct but in the machine shop where I served my
>apprenticeship a broach was a machine that cut keyways (internal) by
>drawing the cutter horizontally through the bore.
>
>Toad
>
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