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9/29/2016 7:13:29 PM EDT
I plan on using a drill press with four flute aluminum titanium carbide ball end mills to drill out my stainless steel and titanium baffles. I plan on going and 1/8 inch increments using a cutting oil until I get to the final bore diameter.  I am wondering if there are any obvious flaws with this technique. furthermore I am wondering if there is any way to set up a drill press in order to clip the baffles with the same ball end mills. is near as I can tell the best way to do this would be to solidly clamp each baffle and then plunge cut from the outside edge approximately where I want the clip to be
9/29/2016 8:13:10 PM EDT
[#1]
Quoted:
I plan on using a drill press with four flute aluminum titanium carbide ball end mills to drill out my stainless steel and titanium baffles. I plan on going and 1/8 inch increments using a cutting oil until I get to the final bore diameter.  I am wondering if there are any obvious flaws with this technique. furthermore I am wondering if there is any way to set up a drill press in order to clip the baffles with the same ball end mills. is near as I can tell the best way to do this would be to solidly clamp each baffle and then plunge cut from the outside edge approximately where I want the clip to be
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A cross slide milling vice makes clipping easy. Feed the material, not the bit. Drill presses don't do so hot drilling onto a curved hard surface. There are a couple threads on the Form1 forum.
9/30/2016 6:17:28 AM EDT
[#2]
An end mill and a drill are designed for different purposes. It might work but you may want to drill a pilot hole first to allow the chips to clear.  I have seen a lot of fubar projects from people using the wrong tools.  
9/30/2016 8:08:39 AM EDT
[#3]
Use a drill bit (undersized) to drill...  Then ream to make the hole round and to exact size.  An end mill will cut slightly smaller than the listed size...  Cobalt drill bits will work great for stainless and Ti.
9/30/2016 8:23:52 AM EDT
[#4]
Like everyone has said, don't use an end mill to replace a drill bit. You're only setting yourself up for failure. As far as clipping the baffles, it depends on what method clip you're looking for. Here are some ideas on how to do it.

Griffin style clips
Here

SilencerCo style clips
Here
9/30/2016 8:24:52 AM EDT
[#5]
At minimum a vise.  A center finder would be helpful.  Make a baffle holder for the vise.  A step drill might work for you.  Definately use a milling vise and end mill for the clips.
9/30/2016 12:12:22 PM EDT
[#6]
Tag for later
10/1/2016 8:54:47 AM EDT
[#7]
Quote History
Quoted:
Like everyone has said, don't use an end mill to replace a drill bit. You're only setting yourself up for failure. As far as clipping the baffles, it depends on what method clip you're looking for. Here are some ideas on how to do it.

Griffin style clips
Here

SilencerCo style clips
Here
View Quote


So what about cobalt mechanics length bits? How long do they last drilling titanium when cared for?
10/1/2016 9:25:27 AM EDT
[#8]
Quote History
Quoted:


So what about cobalt mechanics length bits? How long do they last drilling titanium when cared for?
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Quote History
Quoted:
Quoted:
Like everyone has said, don't use an end mill to replace a drill bit. You're only setting yourself up for failure. As far as clipping the baffles, it depends on what method clip you're looking for. Here are some ideas on how to do it.

Griffin style clips
Here

SilencerCo style clips
Here


So what about cobalt mechanics length bits? How long do they last drilling titanium when cared for?


I cut, drill, and tap Ti all the time.  Cobalt bits are all I use and I get dozens of holes out of one bit.  I have no idea how many.  It is probably more than what you will use yours for.  How thick are the baffles?
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