Re: Drilling leaf springs
[Re: mopar dave]
#2486179
04/21/18 08:40 PM
04/21/18 08:40 PM
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Joined: Jan 2007
Posts: 685 pennsylvania
poboyengineering
mopar
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mopar
Joined: Jan 2007
Posts: 685
pennsylvania
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When I drilled mine, I used a center cutting end mill. That and a Bridgeport, but I would think a heavy drill press would do the same thing. I was surprised at how easy they were to drill. I always thought they were made of stronger stuff.
It may be ugly, but it sure is slow.
Girls comb their hair in rear view mirrors and the boys try to look so hard....
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Re: Drilling leaf springs
[Re: mopar dave]
#2486206
04/21/18 10:21 PM
04/21/18 10:21 PM
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Joined: Jan 2007
Posts: 685 pennsylvania
poboyengineering
mopar
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mopar
Joined: Jan 2007
Posts: 685
pennsylvania
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The end mill did it in one step. If you burned up a lot of bits, you may have hardened the metal right near the hole.
It may be ugly, but it sure is slow.
Girls comb their hair in rear view mirrors and the boys try to look so hard....
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Re: Drilling leaf springs
[Re: mopar dave]
#2488893
04/28/18 12:02 AM
04/28/18 12:02 AM
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Joined: Jan 2007
Posts: 685 pennsylvania
poboyengineering
mopar
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mopar
Joined: Jan 2007
Posts: 685
pennsylvania
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Speeds and feeds will get you every time. Glad to see you got it sorted out.
It may be ugly, but it sure is slow.
Girls comb their hair in rear view mirrors and the boys try to look so hard....
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Re: Drilling leaf springs
[Re: mopar dave]
#2489016
04/28/18 11:56 AM
04/28/18 11:56 AM
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Joined: Sep 2003
Posts: 20,235 north of coder
moparx
"Butt Crack Bob"
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"Butt Crack Bob"
Joined: Sep 2003
Posts: 20,235
north of coder
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an interesting story regarding speeds and feeds. my brother installed a railing in a house he owned one time. just one of those cheapy, imported, lumber house specials. not thick steel by any standards, maybe .094-.100 at best. all the holes drilled ok until the last one. it was a real toughie ! my brother thought it was a combination of imported steel, who knows quality of the bit, and the fact there was many holes drilled with a used bit to start with. anyway, he just gives it all he got and finally, got it pushed through [hand drill of course]. the hole looked like he used a torch of some kind to blow it through, and the drill was "slightly" deformed on the tip. he had the drill wide open, and was pushing with all he had. one spin of the drill to cool it off some, and yep ! it was in REVERSE ! i still jack him about that from time to time !
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