Gallery, Projects and General > How to's
Tapping -- How to's and How not to's....
sparky961:
--- Quote from: Mike E. on May 25, 2017, 05:26:40 AM ---
--- Quote from: sparky961 on May 24, 2017, 04:12:41 PM ---What's the logic in this? Maybe it stays liquid in a really small hole but for any "normal" size it will have evaporated long before having the chance to be helpful. ...............
--- End quote ---
Have you have tried it ?
--- End quote ---
Don't need to. There are enough chemicals I inhale that are "necessary" to cause me to avoid using them unnecessarily.
Mike E.:
Ok, fair enough.
ieezitin:
Roll form taps.. do a great job the pilot size's are different but are available on the net.... you need a little more power to form your thread but break less if not at all.. most people don't know about roll-form taps which means e-bay sellers sell them cheap. do your own research they are great.
Anthony.
Lew_Merrick_PE:
Here's a paper I put together on sizing pilot holes for tapping.
howsitwork?:
cheers for the paper to read :thumbup:
I must admit trying roll form taps for aluminium and they work well but I was very concerned about the force I had to use at first. They do seem significantly stronger though.
Count me in for spiral taps, oh the joy of watching the swarf come out ! Cost a bit more but much more satisfying to use especially in the smaller metric sizes. Not got any imperial ones yet.....
I stick to paraffin mixed with neat cutting oil but have also found WD40 works well for ali. Anyone tried milk - seriously one guy I know swears by it! :Doh:
Navigation
[0] Message Index
[*] Previous page
Go to full version