RU2001104361A - TAPER FOR CUTTING THREADS IN DEAF HOLE - Google Patents

TAPER FOR CUTTING THREADS IN DEAF HOLE

Info

Publication number
RU2001104361A
RU2001104361A RU2001104361/02A RU2001104361A RU2001104361A RU 2001104361 A RU2001104361 A RU 2001104361A RU 2001104361/02 A RU2001104361/02 A RU 2001104361/02A RU 2001104361 A RU2001104361 A RU 2001104361A RU 2001104361 A RU2001104361 A RU 2001104361A
Authority
RU
Russia
Prior art keywords
taper
cutting threads
intake part
slot
tap
Prior art date
Application number
RU2001104361/02A
Other languages
Russian (ru)
Other versions
RU2202450C2 (en
Inventor
Олег Васильевич Таратынов
Ольга Николаевна Ефремова
Original Assignee
Московский государственный индустриальный университет
Filing date
Publication date
Application filed by Московский государственный индустриальный университет filed Critical Московский государственный индустриальный университет
Priority to RU2001104361/02A priority Critical patent/RU2202450C2/en
Priority claimed from RU2001104361/02A external-priority patent/RU2202450C2/en
Publication of RU2001104361A publication Critical patent/RU2001104361A/en
Application granted granted Critical
Publication of RU2202450C2 publication Critical patent/RU2202450C2/en

Links

Claims (1)

Метчик для нарезания резьбы в глухих отверстиях, включающий хвостовик, калибрующую и заборную части в области перехода его заборной части в калибрующую имеет две щелевидные прорези, отличающийся тем, что щелевидная прорезь находится в области перехода заборной части в калибрующую и прорези имеют длину, равную или меньше длине заборной части 13, их ширина составляет b≥(1÷2)•α, где α = P•sinφ/z, мм (α - толщина снимаемой стружки, Р - шаг резьбы; φ - угол заборного конуса метчика; z - число зубьев метчика), а расстояние от торца до начала прорези 1j = (1/3÷1/2)•13.A tap for cutting threads in blind holes, including a shank, a gauge and an intake part in the area of transition of its intake part to the calibrating one, has two slit-like slots, characterized in that the slot-like slot is in the area of transition of the intake part into the calibrating one and the slots have a length equal to or less than the length of the intake part 1 3 , their width is b≥ (1 ÷ 2) • α, where α = P • sinφ / z, mm (α is the thickness of the removed chips, P is the thread pitch; φ is the angle of the tap cone; z - the number of teeth of the tap), and the distance from the end to the beginning of the slot 1 j = (1/3 ÷ 1 / 2) • 1 3 .
RU2001104361/02A 2001-02-19 2001-02-19 Screw tap for cutting thread in dead openings RU2202450C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2001104361/02A RU2202450C2 (en) 2001-02-19 2001-02-19 Screw tap for cutting thread in dead openings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2001104361/02A RU2202450C2 (en) 2001-02-19 2001-02-19 Screw tap for cutting thread in dead openings

Publications (2)

Publication Number Publication Date
RU2001104361A true RU2001104361A (en) 2003-01-27
RU2202450C2 RU2202450C2 (en) 2003-04-20

Family

ID=20246101

Family Applications (1)

Application Number Title Priority Date Filing Date
RU2001104361/02A RU2202450C2 (en) 2001-02-19 2001-02-19 Screw tap for cutting thread in dead openings

Country Status (1)

Country Link
RU (1) RU2202450C2 (en)

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