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BG47027A3 - Tool for cutting- in of ring- shaped openings - Google Patents

Tool for cutting- in of ring- shaped openings

Info

Publication number
BG47027A3
BG47027A3 BG062467A BG6246783A BG47027A3 BG 47027 A3 BG47027 A3 BG 47027A3 BG 062467 A BG062467 A BG 062467A BG 6246783 A BG6246783 A BG 6246783A BG 47027 A3 BG47027 A3 BG 47027A3
Authority
BG
Bulgaria
Prior art keywords
teeth
cutting
radial
tool
chips
Prior art date
Application number
BG062467A
Other languages
Bulgarian (bg)
Inventor
Everett Hougen
Original Assignee
Everett Hougen
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Everett Hougen filed Critical Everett Hougen
Publication of BG47027A3 publication Critical patent/BG47027A3/en

Links

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  • Drilling Tools (AREA)

Abstract

Инструментът намира приложение за прорязване на пръстеновидни отвори в метален обработваем детайл. При работа с него се избягва засядането на отрязаните стружки на това, че отрязаните от външните режещи ръбове стружки са по-тесни от ширината им. Инструментът включва тяло с цилиндрична странична стена, снабдена с множество режещи зъби, свързани помежду си с усилващи напречни ребра, разположени радиално към множество жлебове, нагоре от долния край на страничната стена на инструмента. Всеки зъб има радиална вътрешна задна повърхнина и радиална външна задна повърхнина. Радиалните външни повърхнини на редуващи се зъби са затилувани нагоре по отношение на същите повърхнини на междинни зъби, а радиалните вътрешни задни повърхнини на междинните зъби са затилувани нагоре по отношение на вътрешните задни повърхнини на редуващите се зъби. Степента на затилуването позволява рязане на стружка само по дължината на радиалната вътрешна част на ръба на редуващите се зъби и по дължината на радиалната външна част на ръба на междинните зъби. Стружките, изрязани от всички външни режещи ръбове, са с ширина, по-малка от радиалната дълбочина на жлебовете. 17 претенции, 16 фигуриThe tool is used for cutting annular holes in a metal workpiece. When working with it, jamming of the cut chips is avoided because the chips cut from the outer cutting edges are narrower than their width. The tool includes a body with a cylindrical sidewall provided with a plurality of cutting teeth interconnected by reinforcing transverse ribs located radially to a plurality of grooves upward from a lower end of the tool sidewall. Each tooth has a radial inner posterior surface and a radial outer posterior surface. The radial outer surfaces of the alternate teeth are chamfered upward relative to the same surfaces of the intermediate teeth, and the radial inner rear surfaces of the intermediate teeth are chamfered upward relative to the inner rear surfaces of the alternate teeth. The degree of chamfering allows chip cutting only along the radial inner part of the edge of the alternating teeth and along the radial outer part of the edge of the intermediate teeth. Chips cut from all external cutting edges have a width less than the radial depth of the grooves. 17 claims, 16 figures

BG062467A 1982-09-27 1983-09-27 Tool for cutting- in of ring- shaped openings BG47027A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US42370482A 1982-09-27 1982-09-27

Publications (1)

Publication Number Publication Date
BG47027A3 true BG47027A3 (en) 1990-04-16

Family

ID=23679890

Family Applications (1)

Application Number Title Priority Date Filing Date
BG062467A BG47027A3 (en) 1982-09-27 1983-09-27 Tool for cutting- in of ring- shaped openings

Country Status (3)

Country Link
JP (1) JPS59102507A (en)
BG (1) BG47027A3 (en)
ZA (1) ZA836823B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4644388B2 (en) * 2001-06-14 2011-03-02 大見工業株式会社 Hole cutter

Also Published As

Publication number Publication date
JPH0253164B2 (en) 1990-11-15
JPS59102507A (en) 1984-06-13
ZA836823B (en) 1984-10-31

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