PL423657A1 - Method for forging of balls - Google Patents

Method for forging of balls

Info

Publication number
PL423657A1
PL423657A1 PL423657A PL42365717A PL423657A1 PL 423657 A1 PL423657 A1 PL 423657A1 PL 423657 A PL423657 A PL 423657A PL 42365717 A PL42365717 A PL 42365717A PL 423657 A1 PL423657 A1 PL 423657A1
Authority
PL
Poland
Prior art keywords
blank
dies
diameter
cylindrical holes
punches
Prior art date
Application number
PL423657A
Other languages
Polish (pl)
Other versions
PL236099B1 (en
Inventor
Zbigniew Pater
Janusz Tomczak
Tomasz Bulzak
Original Assignee
Lubelska Polt
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 Lubelska Polt filed Critical Lubelska Polt
Priority to PL423657A priority Critical patent/PL236099B1/en
Publication of PL423657A1 publication Critical patent/PL423657A1/en
Publication of PL236099B1 publication Critical patent/PL236099B1/en

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  • Forging (AREA)

Abstract

Sposób kucia kul, zwłaszcza z prętów walcowych polega na tym, że półfabrykat (5) w kształcie odcinka pręta o przekroju kołowym i średnicy (do) mniejszej od średnicy kutej kuli oraz o długości (Lo) wielokrotnie większej od średnicy kutej kuli nagrzewa się powyżej temperatury rekrystalizacji, następnie wprowadza się półfabrykat (5) do przestrzeni roboczej pierwszego zestawu narzędzi, składającego się z dwóch matryc (1a i 1b) oraz dwóch stempli (3a i 3b), po czym wprawia się dwie matryce (1a i 1b) w przeciwbieżny ruch postępowy z jednakową prędkością (Vo) i przemieszcza się dwie matryce (1a i 2b) po prowadnicy (4) w kierunku półfabrykatu (5) i wprowadza się skrajne odcinki półfabrykatu (5) do otworów cylindrycznych (2a i 2b) dwóch matryc (1a i 1b), następnie zatrzymuje się ruch postępowy dwóch matryc (1a i 1b), po czym wprawia się w przeciwbieżny ruch postępowy dwa stemple (3a i 3b) i przemieszcza się z jednakową prędkością V1 dwa stemple (3a i 3b) w otworach cylindrycznych (2a i 2b) dwóch matryc (1a i 1b) w kierunku półfabrykatu (5), następnie oddziałuje się na półfabrykat (5) wklęsłymi powierzchniami (8a i 8b) dwóch stempli (3a i 3b), po czym spęcza się swobodnie środkowy odcinek półfabrykatu (5) i jednocześnie wysuwa się skrajne odcinki półfabrykatu (5) z otworów cylindrycznych (2a i 2b) dwóch matryc (1a i 1b) i kształtuje się półwyrób o wypukłej powierzchni bocznej do kształtu baryłki i o sferycznych powierzchniach czołowych.The method of forging balls, especially of cylindrical bars, consists in the fact that the blank (5) in the shape of a rod section with a circular cross-section and diameter (up to) smaller than the diameter of the forged ball and with a length (Lo) many times larger than the diameter of the forged ball is heated above the temperature recrystallization, then the blank (5) is introduced into the working space of the first set of tools, consisting of two dies (1a and 1b) and two punches (3a and 3b), after which the two dies (1a and 1b) are put in the opposite direction with equal speed (Vo) and two dies (1a and 2b) are moved along the guide (4) towards the blank (5) and extreme sections of the blank (5) are introduced into the cylindrical holes (2a and 2b) of the two dies (1a and 1b ), then the translational movement of the two dies (1a and 1b) stops, then two stamps (3a and 3b) are put in the opposite movement and move at the same speed V1 two steels mple (3a and 3b) in cylindrical holes (2a and 2b) of two dies (1a and 1b) towards the blank (5), then the blank (5) is treated with concave surfaces (8a and 8b) of two punches (3a and 3b) , then the middle section of the blank (5) freely swells and at the same time the extreme sections of the blank (5) are pulled out of the cylindrical holes (2a and 2b) of the two dies (1a and 1b) and a blank with a convex lateral surface is formed into a barrel shape and spherical frontal surfaces.

PL423657A 2017-11-30 2017-11-30 Method for forging of balls PL236099B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL423657A PL236099B1 (en) 2017-11-30 2017-11-30 Method for forging of balls

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL423657A PL236099B1 (en) 2017-11-30 2017-11-30 Method for forging of balls

Publications (2)

Publication Number Publication Date
PL423657A1 true PL423657A1 (en) 2019-06-03
PL236099B1 PL236099B1 (en) 2020-11-30

Family

ID=66649324

Family Applications (1)

Application Number Title Priority Date Filing Date
PL423657A PL236099B1 (en) 2017-11-30 2017-11-30 Method for forging of balls

Country Status (1)

Country Link
PL (1) PL236099B1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010016007A (en) * 2000-09-14 2001-03-05 박종성 A method of manufacturing the ball for ball valve
CN1840261A (en) * 2005-03-25 2006-10-04 三菱综合材料株式会社 Production method of anode copper ball for electroplating and anode copper ball
AU2016202249A1 (en) * 2015-07-06 2017-02-02 Donhad Pty Ltd Grinding Media Fabrication

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010016007A (en) * 2000-09-14 2001-03-05 박종성 A method of manufacturing the ball for ball valve
CN1840261A (en) * 2005-03-25 2006-10-04 三菱综合材料株式会社 Production method of anode copper ball for electroplating and anode copper ball
AU2016202249A1 (en) * 2015-07-06 2017-02-02 Donhad Pty Ltd Grinding Media Fabrication

Also Published As

Publication number Publication date
PL236099B1 (en) 2020-11-30

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