SU439330A1 - The method of obtaining holes - Google Patents
The method of obtaining holesInfo
- 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
Links
Landscapes
- Absorbent Articles And Supports Therefor (AREA)
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
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)
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 |
-
1972
- 1972-05-22 SU SU1786897A patent/SU439330A1/en active
Cited By (5)
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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