Общий каталог Widia 2017 - страница 1792

Illustrations of Tap Terms

pitch tap crest

basic crest

angle of thread flank min tap major basic height of diameter thread

basic major diameter max tap major base of thread

diameter basic root basic minor diameter

basic pitch diameter

concentric margin cutting edge relief to cutting edge

no relief eccentric relief

heel cutting face

Concentric Eccentric Relief Con-Eccentric Relief

tap major diameter

basic minor diameter

Negative Hook 0º Hook Positive Hook

Negative Rake Radial Rake Positive Rake

Reprinted with permission from United States Cutting Tool Institute (USCTI). Published by Kennametal Inc. © 2014. All rights reserved.