SU439330A1 - The method of obtaining holes - Google Patents

The method of obtaining holes

Info

Publication number
SU439330A1
SU439330A1 SU1786897A SU1786897A SU439330A1 SU 439330 A1 SU439330 A1 SU 439330A1 SU 1786897 A SU1786897 A SU 1786897A SU 1786897 A SU1786897 A SU 1786897A SU 439330 A1 SU439330 A1 SU 439330A1
Authority
SU
USSR - Soviet Union
Prior art keywords
hole
contour
force
area
holes
Prior art date
Application number
SU1786897A
Other languages
Russian (ru)
Inventor
Юрий Борисович Никифоров
Вадим Васильевич Скворцов
Original Assignee
Калужский Филиал Центрального Проектно-Конструкторского И Технологического Бюро
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 Калужский Филиал Центрального Проектно-Конструкторского И Технологического Бюро filed Critical Калужский Филиал Центрального Проектно-Конструкторского И Технологического Бюро
Priority to SU1786897A priority Critical patent/SU439330A1/en
Application granted granted Critical
Publication of SU439330A1 publication Critical patent/SU439330A1/en

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Description

Известен снособ образовани  отверстий, заключающийс  в том, что к материалу на участке, наход щемс  внутри контура получаемого отверсти , прилагают усили , имеющие встречное и направленное вдоль оси отверсти  направление, а также усили  прижима на участке , охватывающем контур получаемого отверсти . Дл  обеснечени  образовани  в листовом материале отверстий с диаметром преимущественно менее 0,3 толщины по предлагаемому способу участок приложени  усилий выбирают в виде кольца, наход щегос  внутри контура отверсти  и прилежащего к нему, величину встречных усилий на этом участке принимают равной по абсолютной величине и прилагают усили  до деформировани  материала на части его то.чщины с сохранением нереиычки, приблизительно равной 0,1, а затем продолжают прикладывать усили  лишь в одном паправлепии. Фиг. 1-3 иллюстрируют предлагаемый способ . С противоположных сторон материала 1 на кольцевых участках вокруг контура будущего отверсти  прикладываетс  усилие прижима 2, равное пределу текучести материала. Затем иа кольцевые участки внутри контура будущего отверсти , примыкающие к прижимаемым, также с противоиоложиых сторон материала вдоль оси отверсти  прикладываютс  рабочими органами 3 равные но величине и встречные по направлению усили  деформировани . За счет усилий деформировани  материал выдавливаетс  в центральные участки внутри контура отверсти  и в нем образуетс  перемычка . После того как перемычка становитс  приблизительно равной 0,1 толщины материала (фиг. 2), к ней продолжают прикладывать деформнрующие усили  лип)ь с одной стороны , отдел ют ее от материала и удал ют из полученного отверсти . Пред мет изобретени  Способ образовани  отверстий, заключающийс  в том, что к материалу на участке, наход щемс  внутри контура получаемого отверсти , прилагают усили , имеющие встреч )1ое и иаправленное вдоль оси отверсти  нанравление , а также усили  ирижима на участке , охватывающем коитур получаемого отверсти , отличающийс  тем, что, с целью образовани  отверстий с диаметром преимущественно менее 0,3 толщины материала, участок приложени  усилий выбирают в виде кольна, наход щегос  внутри контура получаемого отверсти  и прилежащего к контуру, встречные усили  на этом участке берут равными по абсолютной величине и пралагаютA known method of forming holes is that a force is applied to the material in the area inside the contour of the resulting hole, which has a direction opposite and directed along the axis of the hole, as well as a clamping force in the area enclosing the contour of the resulting hole. In order to ensure the formation of holes in the sheet material with a diameter of predominantly less than 0.3 thickness, according to the proposed method, the area of application of the efforts is chosen in the form of a ring, which is inside the hole and adjacent to the contour, the magnitude of the counter forces in this area are equal in absolute value and force is applied until the material is deformed into parts of its thickness, with a retention of a misalignment approximately equal to 0.1, and then they continue to apply forces only in one paralepia. FIG. 1-3 illustrate the proposed method. On opposite sides of the material 1, a pressing force 2 equal to the yield strength of the material is applied on the annular regions around the contour of the future opening. Then, the annular areas inside the future contour of the hole, adjacent to the pressing, also on the anti-sides of the material along the axis of the hole, are applied by working bodies 3 of equal size and opposing in the direction of the deformation force. Due to the deformation forces, the material is squeezed out into the central regions inside the contour of the hole and a web is formed in it. After the web becomes approximately equal to 0.1 of the thickness of the material (Fig. 2), the deforming forces of the lip are continued to be applied to it on one side, separated from the material and removed from the resulting hole. The invention of the method of forming holes, which consists in that the material in the area inside the contour of the resulting hole is applied with the first and lasting along the axis of the hole, as well as the force in the area that surrounds the resulting hole, characterized in that, in order to form holes with a diameter of predominantly less than 0.3 of the thickness of the material, the area of application of the forces is chosen as a pin inside the contour of the resulting hole and adjacent to Contours, counter force on this section taken equal in absolute value and pralagayut

; с начала процесса образовани  отверсти ; since the beginning of the hole formation process

получени  в материале перемычки, приблительно равной 0,1 его толщины, после чегоin the material of the lintel, approximately equal to 0.1 of its thickness, after which

4four

продолжают прикладывать усили  лишь в одном направлении до полного разделени  материала.continue to apply force only in one direction until complete separation of the material.

1..I I П1..I I P

Фиг 2Fig 2

Риь 1Ri 1

Фиг 3Fig 3

SU1786897A 1972-05-22 1972-05-22 The method of obtaining holes SU439330A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1786897A SU439330A1 (en) 1972-05-22 1972-05-22 The method of obtaining holes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1786897A SU439330A1 (en) 1972-05-22 1972-05-22 The method of obtaining holes

Publications (1)

Publication Number Publication Date
SU439330A1 true SU439330A1 (en) 1974-08-15

Family

ID=20514868

Family Applications (1)

Application Number Title Priority Date Filing Date
SU1786897A SU439330A1 (en) 1972-05-22 1972-05-22 The method of obtaining holes

Country Status (1)

Country Link
SU (1) SU439330A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6230537B1 (en) 1998-03-17 2001-05-15 Stresswave, Inc. Method and apparatus for producing beneficial stresses around apertures by use of focused stress waves, and improved fatigue life products made by the method
US6389865B1 (en) 1998-03-17 2002-05-21 Stresswave, Inc. Method and apparatus for producing beneficial stresses around apertures by use of focused stress waves
US6711928B1 (en) 1998-03-17 2004-03-30 Stresswave, Inc. Method and apparatus for producing beneficial stresses around apertures, and improved fatigue life products made by the method
US7047786B2 (en) 1998-03-17 2006-05-23 Stresswave, Inc. Method and apparatus for improving the fatigue life of components and structures
US7131310B2 (en) 2000-02-09 2006-11-07 Stresswave, Inc. Method for manufacturing improved fatigue life structures, and structures made via the method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6230537B1 (en) 1998-03-17 2001-05-15 Stresswave, Inc. Method and apparatus for producing beneficial stresses around apertures by use of focused stress waves, and improved fatigue life products made by the method
US6389865B1 (en) 1998-03-17 2002-05-21 Stresswave, Inc. Method and apparatus for producing beneficial stresses around apertures by use of focused stress waves
US6711928B1 (en) 1998-03-17 2004-03-30 Stresswave, Inc. Method and apparatus for producing beneficial stresses around apertures, and improved fatigue life products made by the method
US7047786B2 (en) 1998-03-17 2006-05-23 Stresswave, Inc. Method and apparatus for improving the fatigue life of components and structures
US7131310B2 (en) 2000-02-09 2006-11-07 Stresswave, Inc. Method for manufacturing improved fatigue life structures, and structures made via the method

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