PL442828A1 - Method of shaping a spherical recess on the front surface of an engine valve in the process of its co-extrusion and hot forging - Google Patents

Method of shaping a spherical recess on the front surface of an engine valve in the process of its co-extrusion and hot forging

Info

Publication number
PL442828A1
PL442828A1 PL442828A PL44282822A PL442828A1 PL 442828 A1 PL442828 A1 PL 442828A1 PL 442828 A PL442828 A PL 442828A PL 44282822 A PL44282822 A PL 44282822A PL 442828 A1 PL442828 A1 PL 442828A1
Authority
PL
Poland
Prior art keywords
hot forging
front surface
extrusion
engine valve
punch
Prior art date
Application number
PL442828A
Other languages
Polish (pl)
Inventor
Jakub KRAWCZYK
Marek HAWRYLUK
Marta Janik
Zbigniew GRONOSTAJSKI
Jerzy Jaruzel
Original Assignee
Politechnika Wrocławska
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 Politechnika Wrocławska filed Critical Politechnika Wrocławska
Priority to PL442828A priority Critical patent/PL442828A1/en
Publication of PL442828A1 publication Critical patent/PL442828A1/en

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
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/02—Making uncoated products
    • B21C23/04—Making uncoated products by direct extrusion
    • 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
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/02—Making uncoated products
    • B21C23/04—Making uncoated products by direct extrusion
    • B21C23/14—Making other products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J1/00—Preparing metal stock or similar ancillary operations prior, during or post forging, e.g. heating or cooling
    • B21J1/003—Selecting material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J1/00—Preparing metal stock or similar ancillary operations prior, during or post forging, e.g. heating or cooling
    • B21J1/02—Preliminary treatment of metal stock without particular shaping, e.g. salvaging segregated zones, forging or pressing in the rough
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/002—Hybrid process, e.g. forging following casting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/02—Die forging; Trimming by making use of special dies ; Punching during forging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/02—Die forging; Trimming by making use of special dies ; Punching during forging
    • B21J5/022—Open die forging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/20—Making machine elements valve parts
    • B21K1/22—Making machine elements valve parts poppet valves, e.g. for internal-combustion engines

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Forging (AREA)

Abstract

Sposób kształtowania sferycznego wgłębienia na czołowej powierzchni zaworu silnikowego w procesie jego wyciskania współbieżnego i kucia na gorąco, przeznaczonego do stosowania w silnikach spalinowych w samochodach osobowych i ciężarowych, w którego procesie wyciskania współbieżnego kształtuje się przedkuwkę przy użyciu stempla do współbieżnego wyciskania wstępnego, którą to przedkuwkę kuje się następnie w procesie kucia na gorąco przy użyciu stempla do kucia na gorąco, przy czym w procesie kucia na gorąco używa się stempla do kucia na gorąco, który na czołowej powierzchni ma sferyczny wypust, którym na czołowej powierzchni wytwarzanego zaworu silnikowego centralnie w jego osi wzdłużnej ukształtowuje się sferyczne wgłębienie, charakteryzuje się tym, że sferyczne wgłębienie na czołowej powierzchni wytwarzanego zaworu silnikowego kształtuje się już wstępnie w procesie wyciskania współbieżnego przedkuwki, a do jego utworzenia w tym procesie używa się stempla do współbieżnego wyciskania wstępnego (1), który podobnie jak stempel do kucia na gorąco ma na czołowej powierzchni sferyczny wypust.A method of forming a spherical recess on the front surface of an engine valve in the process of its co-rotating extrusion and hot forging, intended for use in internal combustion engines in passenger cars and trucks, in the co-extrusion process of which a blank is formed using a punch for co-rotating preliminary extrusion, which blank is then forged in the hot forging process using a hot forging punch, and the hot forging process uses a hot forging punch that has a spherical spline on its front surface, which on the front surface of the engine valve being manufactured is centered on its axis a spherical recess is formed in the longitudinal direction, it is characterized by the fact that the spherical recess on the front surface of the manufactured engine valve is pre-shaped in the process of co-rotating extrusion of the forging, and to create it in this process a co-rotating pre-extrusion punch (1) is used, which, similarly to the hot forging punch has a spherical projection on its front surface.

PL442828A 2022-11-15 2022-11-15 Method of shaping a spherical recess on the front surface of an engine valve in the process of its co-extrusion and hot forging PL442828A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL442828A PL442828A1 (en) 2022-11-15 2022-11-15 Method of shaping a spherical recess on the front surface of an engine valve in the process of its co-extrusion and hot forging

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL442828A PL442828A1 (en) 2022-11-15 2022-11-15 Method of shaping a spherical recess on the front surface of an engine valve in the process of its co-extrusion and hot forging

Publications (1)

Publication Number Publication Date
PL442828A1 true PL442828A1 (en) 2024-05-20

Family

ID=91128900

Family Applications (1)

Application Number Title Priority Date Filing Date
PL442828A PL442828A1 (en) 2022-11-15 2022-11-15 Method of shaping a spherical recess on the front surface of an engine valve in the process of its co-extrusion and hot forging

Country Status (1)

Country Link
PL (1) PL442828A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5273385A (en) * 1992-06-29 1993-12-28 A. J. Rose Manufacturing Company Blind hole integral rivet
CN102728643A (en) * 2011-04-13 2012-10-17 北京太尔时代科技有限公司 Asymmetrical forming method and system, and forming device of asymmetrical pipe fitting
CN103415359A (en) * 2011-03-10 2013-11-27 联邦科学和工业研究组织 Extrusion of high temperature formable non-ferrous metals
CN103567763A (en) * 2013-10-31 2014-02-12 中北大学 Large long cone-shaped horn cylinder part extruding forming method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5273385A (en) * 1992-06-29 1993-12-28 A. J. Rose Manufacturing Company Blind hole integral rivet
CN103415359A (en) * 2011-03-10 2013-11-27 联邦科学和工业研究组织 Extrusion of high temperature formable non-ferrous metals
CN102728643A (en) * 2011-04-13 2012-10-17 北京太尔时代科技有限公司 Asymmetrical forming method and system, and forming device of asymmetrical pipe fitting
CN103567763A (en) * 2013-10-31 2014-02-12 中北大学 Large long cone-shaped horn cylinder part extruding forming method

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