Tap: "a tool for cutting female (internal) screw threads" a Die is used to cut the male (outer) threads.
Taps are classified by diameter, threads per unit measure, taper and hand (manual) or machine (automatic/power) held.
|An excellent video on basic metal working.
The section on tapping starts at 5min, 55seconds.
Operation: When using a hand tap, the operator must insert the tap with very accurate alignment into the hole. The tap is then turned several times while pressing it into the opening of the hole to start the teeth cutting into the material. The tap must be turned back a quarter turn every turns in order to break the chip formed during the cutting process. If the chip is not broken, it can "crowed" or jam the tap, causing it to break. These chips need to then fall out of the flutes cut in the side of the tap. If the chips can not be cleared, the tap will have to be removed and cleaned, before re-inserting to continue the process.
Dry bar soap makes a wonderful lubricant for the tapping process. Because it is dry, the flakes of metal and soap easily fall away, preventing a buildup of material inside the hole. The cost is extremely low, and the cheaper soaps (e.g. Ivory) work best.
Calculate Drill Size for Tap Diameter, TPI, and Thread depth.
|file: /Techref/taps.htm, 4KB, , updated: 2012/7/18 14:07, local time: 2014/3/7 23:47,
|©2014 These pages are served without commercial sponsorship. (No popup ads, etc...).Bandwidth abuse increases hosting cost forcing sponsorship or shutdown. This server aggressively defends against automated copying for any reason including offline viewing, duplication, etc... Please respect this requirement and DO NOT RIP THIS SITE. Questions?|
<A HREF="http://www.piclist.com/techref/taps.htm"> Drill and Tap, tap and die, plug tap, Taps</A>
|Did you find what you needed?|
PICList 2014 contributors:
o List host: MIT, Site host massmind.org, Top posters @20140307 RussellMc, Josh Koffman, IVP, Isaac Marino Bavaresco, alan.b.pearce, Robert Dvoracek, CDB, Spehro Pefhany, Bob Axtell, Carl Denk,
* Page Editors: James Newton, David Cary, and YOU!
* Roman Black of Black Robotics donates from sales of Linistep stepper controller kits.
* Ashley Roll of Digital Nemesis donates from sales of RCL-1 RS232 to TTL converters.
* Monthly Subscribers: Gregg Rew. on-going support is MOST appreciated!
* Contributors: Richard Seriani, Sr.
Welcome to www.piclist.com!