SU464398A1 - Spiral drill - Google Patents

Spiral drill

Info

Publication number
SU464398A1
SU464398A1 SU1844021A SU1844021A SU464398A1 SU 464398 A1 SU464398 A1 SU 464398A1 SU 1844021 A SU1844021 A SU 1844021A SU 1844021 A SU1844021 A SU 1844021A SU 464398 A1 SU464398 A1 SU 464398A1
Authority
SU
USSR - Soviet Union
Prior art keywords
drill
spiral drill
feathers
viscous
chamfers
Prior art date
Application number
SU1844021A
Other languages
Russian (ru)
Inventor
Всеволод Фомич Бобров
Алексей Иванович Седельников
Original Assignee
Тульский Политехнический Институт
Кировский Политехнический Институт
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 Тульский Политехнический Институт, Кировский Политехнический Институт filed Critical Тульский Политехнический Институт
Priority to SU1844021A priority Critical patent/SU464398A1/en
Application granted granted Critical
Publication of SU464398A1 publication Critical patent/SU464398A1/en

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Description

Изоб|ретение относитс  ж .металлообработке л .может быть использовано лри оверлекии от1верст.ий Б труднооб-рааатьиваемы.х в зких материалах.The invention relates to metal processing, and it can be used for overlaying bores of difficult-to-work viscous viscous materials.

Из:ве СТ1НЫ .апиральные сверла, рабоча  часть «отарых выполнена стутенчатой.From: ve ST1NY. Spiral drills, the working part of the open bar is made by step.

Лрвдлагаемое свйрло отличаетс  тем, что кажда  его стуиепь выполнена ino винтовой паверх.ности с количеством заходов, ра.в,ны.м или (К1р1атньгм (количеству (перьев сверла. На наибольшим диаметре .ка гйдой ступени выполнены фаски.An extension is characterized by the fact that each of its steps is made ino screw-top with the number of visits, rav, now, or (K1p1atngm (number (drill feathers. At the largest diameter of the next step, chamfers are made).

Это иовышает чистоту обрабатываемой поверхности .This increases the cleanliness of the surface to be treated.

На ф|и,г. 1 ,изаб|р.ажено предлагаемое сверло , общий вид; на фиг. 2 - сечен.ие по А-А на фиг. 1.On f | i, g. 1, izab | r.azheno proposed drill, a general view; in fig. 2 is a section along A-A in FIG. one.

Рабоча-  часть 1 имеет ступени 2, кажда  из 1кото,рых Быподне,на ino виитовой поверхности 3 с miarOiM ап,и,р,али Т. На наибольшем диаметре каждой ступени выполнены фаюки 4. Число за-.ходов виитавой |П01верХност,и должно быть равным или .кратным количеству перьев сверла.Worker part 1 has steps 2, each of 1 koto, ryb bypodne, on the ino viite surface 3 with miarOiM an, and, p, ali T. On the largest diameter of each step, there are four fayuks 4. The number of passages of the vi tita | must be equal to or multiple of the drill feathers.

iFIo мере износа и переточки режущей части перВой стуненч ее диаметр Д уменьшаетс  и в работу вступает кромка 5 второй ступени с диаметром Дг, котора , благодар  наличию положительного значени  заднего угла а., срезает припуск, обеспечива  нор.мальную работу сверла независимо от значени  паибольшего диаметра первой ступени сверла, получаемого в пропессе обработки .iFIo measures wear and re-cutting of the cutting part of the first stunench, its diameter D decreases, and the edge 5 of the second stage enters the work, with a diameter Dg, which, due to the positive value of the back angle a., cuts off the allowance, ensuring normal operation of the drill the first step of the drill obtained in the process processing.

Предмет изобретен п  Subject invented n

Claims (2)

1.Спиральное сверло дл  обработки отверстий в детал х из в зких и труднообрабатываемых материалов со ступенчатой рабочей частью, отличающеес  тем, что, с целью гювышени  чистоты обрабатываемой поверхности , кажда  ступень выполнена по виптовой поверхпости с количеством заходов, равиым или кратным количеству перьев сверла.1. A spiral drill for machining holes in parts of viscous and difficult-to-work materials with a stepped working part, characterized in that, in order to increase the cleanliness of the surface being treated, each step is made on a VIP surface with a number of visits, ravi or multiple of the number of feathers of the drill. 2.С.чпральное сверло по п. 1, отличающеес  тем, что на напбольшем дпаметре каждой ступени выполнены фаски.2. A chip drill according to claim. 1, characterized in that chamfers are made on a large diameter of each step.
SU1844021A 1972-11-04 1972-11-04 Spiral drill SU464398A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1844021A SU464398A1 (en) 1972-11-04 1972-11-04 Spiral drill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1844021A SU464398A1 (en) 1972-11-04 1972-11-04 Spiral drill

Publications (1)

Publication Number Publication Date
SU464398A1 true SU464398A1 (en) 1975-03-25

Family

ID=20531438

Family Applications (1)

Application Number Title Priority Date Filing Date
SU1844021A SU464398A1 (en) 1972-11-04 1972-11-04 Spiral drill

Country Status (1)

Country Link
SU (1) SU464398A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100329802A1 (en) * 2009-06-30 2010-12-30 Ibiden Co., Ltd. Cutting drill and method for manufacturing printed wiring board
US20110211924A1 (en) * 2008-09-10 2011-09-01 Mitsubishi Materials Corporation Drill

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110211924A1 (en) * 2008-09-10 2011-09-01 Mitsubishi Materials Corporation Drill
US8876445B2 (en) * 2008-09-10 2014-11-04 Mitsubishi Materials Corporation Drill
US20100329802A1 (en) * 2009-06-30 2010-12-30 Ibiden Co., Ltd. Cutting drill and method for manufacturing printed wiring board
US8727680B2 (en) * 2009-06-30 2014-05-20 Ibiden Co., Ltd. Cutting drill and method for manufacturing printed wiring board

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