SU927355A1 - Female die for extruding ribbed products - Google Patents
Female die for extruding ribbed products Download PDFInfo
- Publication number
- SU927355A1 SU927355A1 SU802902094A SU2902094A SU927355A1 SU 927355 A1 SU927355 A1 SU 927355A1 SU 802902094 A SU802902094 A SU 802902094A SU 2902094 A SU2902094 A SU 2902094A SU 927355 A1 SU927355 A1 SU 927355A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- matrix
- diameter
- pressing
- products
- extruding
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C25/00—Profiling tools for metal extruding
- B21C25/02—Dies
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
- Extrusion Of Metal (AREA)
Description
(54) МАТРИЦА ДЛЯ ПРЕССОВАНИЯ ОРЕБРЕННЫХ(54) MATRIX FOR PRESSING OF FINE
1one
Изобретение относитс к обработке металлов давлением, а точнее к изготовлению прессованных изделий.The invention relates to the processing of metals by pressure, and more specifically to the manufacture of extruded products.
Известна матрица дл прессовани оребренных изделий, выполненна в виде полого корпуса с последовательно расположенными в нем по оси заходным коническим участком и калибрующим участком с профильным по ском 1 .The known matrix for extrusion of finned products is made in the form of a hollow body with an inlet conic section sequentially arranged in it along the axis and a calibrating section with a profile 1.
По мере продвижени прессуемого металла по заходному участку такой матрицы дав .ление истечени возрастает и достигает максимальных значений в месте перехода заходного участка в профильный калибрующий по сок . При прессовании заготовок из калопластичных материалов простой формы, как правило, на их поверхности не возникают трещины и надрывы в виде «ершей при степен х деформации 75-80%. .При прессовании заготовок сложной (})Ормы, имеющих тонкие ребра, происходит образование на них глубоких трещин и надрывов при затекании металла с конической поверхности заходного участка в калибрующий участок матрицы , формообразующей тонкие ребра в заготовках . Даже снижение степени деформаИЗДЕЛИЙAs the pressed metal advances along the lead-in area of such a matrix, the outflow pressure increases and reaches maximum values at the transition point of the lead-in section to the profile sizing juice. When pressing blanks of caloplastic materials of simple form, as a rule, cracks and tears in the form of ruffs do not occur on their surface at degrees of deformation of 75-80%. .When pressing complex (}) billets with thin ribs, deep cracks and tears form on them when the metal flows from the conical surface of the lead-in area to the calibrating section of the matrix that forms the thin ribs in the blanks. Even a decrease in the degree of deformity.
ции до 50-60% не всегда приводит к устранению трещинообразовани и.надрывов на тонких ребрах заготовок, в результате чего наблюдаетс большой процент брака при прессовании.A change of up to 50-60% does not always lead to the elimination of cracking and tears on the thin edges of the workpieces, as a result of which a large percentage of rejects during pressing is observed.
Целью изобретени вл етс повышение качества изделий при прессовании изделий с утоненными ребрами.The aim of the invention is to improve the quality of products when pressing products with thinned ribs.
Поставленна цель достигаетс тем, что матрица снабжена расположенным между заходным коническим и калибрующим участками дополнительным цилиндрическим участком диаметром, равным диаметру окружности , описанной вокруг профил поперечного сечени по ска калибрующего участка матрицы , и высотой, равной половине этого диаметра .This goal is achieved by the fact that the matrix is provided with an additional cylindrical section located between the inlet conic and the calibrating sections with a diameter equal to the diameter of the circle described around the cross-sectional profile along the gauge section of the matrix and a height equal to half of this diameter.
При такой конструкции матрицы процесс прессовани разбиваетс на две стадии. На первой стадии происходит формообразование круглого прутка с диаметром, равным 20 большему размеру профильного калибрующего по ска.With this matrix design, the pressing process is divided into two stages. At the first stage, a round bar is formed with a diameter equal to 20 times the size of the profile gage.
На второй стадии процесса прессовани по мере дальнейцлго продвижени прессуемой заготовки происходит формообразоваIn the second stage of the extrusion process, as the further progress of the compression billet proceeds, the shaping takes place.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU802902094A SU927355A1 (en) | 1980-04-01 | 1980-04-01 | Female die for extruding ribbed products |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU802902094A SU927355A1 (en) | 1980-04-01 | 1980-04-01 | Female die for extruding ribbed products |
Publications (1)
Publication Number | Publication Date |
---|---|
SU927355A1 true SU927355A1 (en) | 1982-05-15 |
Family
ID=20886271
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU802902094A SU927355A1 (en) | 1980-04-01 | 1980-04-01 | Female die for extruding ribbed products |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU927355A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0434838A1 (en) * | 1989-05-19 | 1991-07-03 | Institut Fiziki Vysokikh Davleny Imeni L.F. Vereschagina Akademii Nauk Sssr | Die for hot extrusion |
-
1980
- 1980-04-01 SU SU802902094A patent/SU927355A1/en active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0434838A1 (en) * | 1989-05-19 | 1991-07-03 | Institut Fiziki Vysokikh Davleny Imeni L.F. Vereschagina Akademii Nauk Sssr | Die for hot extrusion |
EP0434838A4 (en) * | 1989-05-19 | 1991-09-25 | Institut Fiziki Vysokikh Davleny Imeni L.F. Vereschagina Akademii Nauk Sssr | Die for hot extrusion |
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