Machining Rifling: How Is It Done?

  • Thread starter Thread starter vin300
  • Start date Start date
  • Tags Tags
    Machining
vin300
Messages
602
Reaction score
4
how is rifling done? I've read it's done by broaching,but rifling is helical
 
Engineering news on Phys.org
The broach is rotated as it is drawn through the barrel.
 
Thread 'I need a concave mirror with a focal length length of 150 feet'
I need to cut down a 3 year old dead tree from top down so tree causes no damage with small pieces falling. I need a mirror with a focal length of 150 ft. 12" diameter to 36" diameter will work good but I can't think of any easy way to build it. Nothing like this for sale on Ebay. I have a 30" Fresnel lens that I use to burn stumps it works great. Tree service wants $2000.
Hi all, i have some questions about the tesla turbine: is a tesla turbine more efficient than a steam engine or a stirling engine ? about the discs of the tesla turbine warping because of the high speed rotations; does running the engine on a lower speed solve that or will the discs warp anyway after time ? what is the difference in efficiency between the tesla turbine running at high speed and running it at a lower speed ( as fast as possible but low enough to not warp de discs) and: i...

Similar threads

Back
Top