Quote:
Originally Posted by nick_sheets
We are looking to broach through 1.75" aluminum, does anyone have a recommendation on what size arbor press to get? We recently had a sposnor donate 1/2" Hex broaches.
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The short answer is that's not going to work very well at all.
You're only supposed to go 2-2.5xD on a hex broach. Any longer than that and you'll get excessive wear and require massive amounts of force. You will need a 5 ton press and it will not be easy at all.
What is this for? Some type of hub? You probably don't need a full 1.75" of engagement and could counterbore your part to allow a more reasonable hex length.