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Pins for a knurling tool - how hard should they be?
| Neil Wyatt | 21/04/2021 16:33:55 |
 19226 forum posts 749 photos 86 articles | I used an HSS drill shank as a 'temporary spindle' for a knurl, it wore badly! Make bronze pins Neil |
| Robin Graham | 22/04/2021 22:43:24 |
| 1089 forum posts 345 photos | Posted by Neil Wyatt on 21/04/2021 16:33:55:
I used an HSS drill shank as a 'temporary spindle' for a knurl, it wore badly! Make bronze pins Neil But aren't the shanks of HSS drills much softer than the business end? I've certainly scored drill shanks when I've not tightened the drill chuck enough. And is bronze really hard/strong enough for this sort of thing? The numbers (hardness / Young's modulus) suggest not. But it's never that simple I suppose. Or maybe the smiley means it's a joke. I don't know - I'm a tyro, you could probably send me to the store for a metric monkey wrench. I did get eventually get a half-decent knurl with my improvised tool:
but it's not sharp. I think I have to make a clamp-type tool. David George has kindly sent me detailed plans for his version - thank you David. Robin. |
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All Forum Topics > Beginners questions > Pins for a knurling tool - how hard should they be?