08-02-2015, 12:50 PM
I need to make a cone out of .010 316 stainless steel.
This cone is 100mm long, 10mm on the small end, and 18mm on the large end.
I started out using aluminum for this part, but need a material that won't wear out like my aluminum part is wearing.
I built a pair of mandrel pliers using structural stainless angle, and a 3/8" steel rod. The mandrel fits together quite nicely, but when I bend the stainless, I'm not getting the radius I need, and in addition to that, I can't finish out the entire cone shape because the tool gets in the way.
This part is used as a guide for spent ammo brass. 9mm luger to be exact. I am considering several approaches. The first being that the part holds its own shape after bending.
The second option is to bend it over a mandrel and spot weld an overlapping seam.
The third option is to butt the two sides together and weld them that way.
Honestly, I don't know how to approach this. Any ideas?
This cone is 100mm long, 10mm on the small end, and 18mm on the large end.
I started out using aluminum for this part, but need a material that won't wear out like my aluminum part is wearing.
I built a pair of mandrel pliers using structural stainless angle, and a 3/8" steel rod. The mandrel fits together quite nicely, but when I bend the stainless, I'm not getting the radius I need, and in addition to that, I can't finish out the entire cone shape because the tool gets in the way.
This part is used as a guide for spent ammo brass. 9mm luger to be exact. I am considering several approaches. The first being that the part holds its own shape after bending.
The second option is to bend it over a mandrel and spot weld an overlapping seam.
The third option is to butt the two sides together and weld them that way.
Honestly, I don't know how to approach this. Any ideas?