SU521074A1 - Spiral drill - Google Patents

Spiral drill

Info

Publication number
SU521074A1
SU521074A1 SU2043601A SU2043601A SU521074A1 SU 521074 A1 SU521074 A1 SU 521074A1 SU 2043601 A SU2043601 A SU 2043601A SU 2043601 A SU2043601 A SU 2043601A SU 521074 A1 SU521074 A1 SU 521074A1
Authority
SU
USSR - Soviet Union
Prior art keywords
spiral drill
drill
spiral
rear surface
chip
Prior art date
Application number
SU2043601A
Other languages
Russian (ru)
Inventor
Геннадий Алексеевич Шерстобитов
Александр Александрович Некора
Original Assignee
Предприятие П/Я В-8772
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 Предприятие П/Я В-8772 filed Critical Предприятие П/Я В-8772
Priority to SU2043601A priority Critical patent/SU521074A1/en
Application granted granted Critical
Publication of SU521074A1 publication Critical patent/SU521074A1/en

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Landscapes

  • Drilling Tools (AREA)
  • Earth Drilling (AREA)

Description

(54) СПИРАЛЬНОЕ СВЕРЛО(54) SPIRAL DRILL

ф О р м у л а и 3 о б р е г е н и  f O rm u l a and 3 o b r e g e n i

Спиральное сверло, задн   поверхность стружкоотвод щей канавки кбторого ререходит в ленточку отличающеес тем , что, с целью, иовышеп   стойксюти свер . ла, передн   поверхность стружкоотвод щой канйвкн на периферии сверла наклонена к его оси и плавно переходит в осевом сечении в пр мую заднюю поверхность.The twist drill bit, the rear surface of the chip discharge groove of the second one, is cut into a ribbon, characterized in that, for the purpose, and higher stacks of bore. The lateral surface of the chip discharging edge at the periphery of the drill is inclined to its axis and smoothly, in axial section, goes into the straight rear surface.

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SU2043601A 1974-07-17 1974-07-17 Spiral drill SU521074A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU2043601A SU521074A1 (en) 1974-07-17 1974-07-17 Spiral drill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU2043601A SU521074A1 (en) 1974-07-17 1974-07-17 Spiral drill

Publications (1)

Publication Number Publication Date
SU521074A1 true SU521074A1 (en) 1976-07-15

Family

ID=20590871

Family Applications (1)

Application Number Title Priority Date Filing Date
SU2043601A SU521074A1 (en) 1974-07-17 1974-07-17 Spiral drill

Country Status (1)

Country Link
SU (1) SU521074A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990004473A1 (en) * 1988-10-21 1990-05-03 Alexei Vladimirovich Zubkov Twist drill
US5035552A (en) * 1988-09-29 1991-07-30 Lysenko Viktor G Twist drill for deep hole drilling
US5816754A (en) * 1996-11-06 1998-10-06 Greenfield Industries Elongated drill with replaceable cutting inserts

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5035552A (en) * 1988-09-29 1991-07-30 Lysenko Viktor G Twist drill for deep hole drilling
WO1990004473A1 (en) * 1988-10-21 1990-05-03 Alexei Vladimirovich Zubkov Twist drill
GB2232912A (en) * 1988-10-21 1991-01-02 Alexei Vladimirovich Zubkov Twist drill
US5046902A (en) * 1988-10-21 1991-09-10 Zubov Alexei V Spiral drill
US5816754A (en) * 1996-11-06 1998-10-06 Greenfield Industries Elongated drill with replaceable cutting inserts

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