PL424624A1 - Method for improvement of durability of a forging tool by modification of its top surface layer - Google Patents

Method for improvement of durability of a forging tool by modification of its top surface layer

Info

Publication number
PL424624A1
PL424624A1 PL424624A PL42462418A PL424624A1 PL 424624 A1 PL424624 A1 PL 424624A1 PL 424624 A PL424624 A PL 424624A PL 42462418 A PL42462418 A PL 42462418A PL 424624 A1 PL424624 A1 PL 424624A1
Authority
PL
Poland
Prior art keywords
forging tool
weld
forging
durability
top surface
Prior art date
Application number
PL424624A
Other languages
Polish (pl)
Other versions
PL233987B1 (en
Inventor
Zbigniew GRONOSTAJSKI
Marcin Kaszuba
Paweł Widomski
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 PL424624A priority Critical patent/PL233987B1/en
Publication of PL424624A1 publication Critical patent/PL424624A1/en
Publication of PL233987B1 publication Critical patent/PL233987B1/en

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  • Forging (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

Sposób poprawy trwałości narzędzia kuźniczego poprzez modyfikację jego warstwy wierzchniej, przeznaczonego do stosowania w przemysłowych procesach kucia na ciepło i gorąco, w którym narzędzie kuźnicze poddaje się procesowi azotowania charakteryzuje się tym, że na powierzchnię wierzchnią narzędzia kuźniczego poprzez napawanie łukowe drutem proszkowym samoosłonowym nakłada się, warstwowo, napoinę o grubości w zakresie od 2 do 5 mm której twardość jest od 15 do 30% większa od twardości materiału z którego wykonane jest narzędzie kuźnicze, po nałożeniu napoiny narzędzie kuźnicze poddaje się wyżarzaniu odprężającemu w temperaturze od 50°C do 100°C poniżej temperatury odpuszczania napoiny i materiału z którego wykonane jest narzędzie kuźnicze, następnie wierzchnią powierzchnię napoiny oczyszcza się oraz obrabia mechanicznie do wykroju roboczego narzędzia kuźniczego, po czym poprzez azotowanie wytwarza się na niej dyfuzyjną warstwę azotków o grubości efektywnej G800 powyżej 50 mikrometrów.The method of improving the durability of the forging tool by modifying its surface layer, intended for use in industrial hot and hot forging processes, in which the forging tool is subjected to the nitriding process is characterized by the fact that the top surface of the forging tool by arc welding with self-shielding wire is applied, in layers, a weld layer with a thickness in the range of 2 to 5 mm whose hardness is 15 to 30% higher than the hardness of the material the forging tool is made of, after applying the weld the forging tool is subjected to stress relief annealing at a temperature from 50 ° C to 100 ° C below the tempering temperature of the weld and the material from which the forging tool is made, then the surface of the weld is cleaned and machined to the working pattern of the forging tool, after which a diffusion layer of az is formed on it by nitriding G800 effective thickness thicknesses above 50 micrometers.

PL424624A 2018-02-20 2018-02-20 Method for improvement of durability of a forging tool by modification of its top surface layer PL233987B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL424624A PL233987B1 (en) 2018-02-20 2018-02-20 Method for improvement of durability of a forging tool by modification of its top surface layer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL424624A PL233987B1 (en) 2018-02-20 2018-02-20 Method for improvement of durability of a forging tool by modification of its top surface layer

Publications (2)

Publication Number Publication Date
PL424624A1 true PL424624A1 (en) 2019-08-26
PL233987B1 PL233987B1 (en) 2019-12-31

Family

ID=67683645

Family Applications (1)

Application Number Title Priority Date Filing Date
PL424624A PL233987B1 (en) 2018-02-20 2018-02-20 Method for improvement of durability of a forging tool by modification of its top surface layer

Country Status (1)

Country Link
PL (1) PL233987B1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59224221A (en) * 1983-05-30 1984-12-17 Inoue Japax Res Inc Processing method for high hardness material
DE19623148C2 (en) * 1996-06-10 1998-04-09 Peddinghaus Carl Dan Gmbh Process and plant for the production or refurbishment of three-dimensional, metallic hollow molds
CN101856778A (en) * 2010-05-18 2010-10-13 武汉科技大学 Method for repairing continuous casting and rolling roller of aluminum pole

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59224221A (en) * 1983-05-30 1984-12-17 Inoue Japax Res Inc Processing method for high hardness material
DE19623148C2 (en) * 1996-06-10 1998-04-09 Peddinghaus Carl Dan Gmbh Process and plant for the production or refurbishment of three-dimensional, metallic hollow molds
CN101856778A (en) * 2010-05-18 2010-10-13 武汉科技大学 Method for repairing continuous casting and rolling roller of aluminum pole

Also Published As

Publication number Publication date
PL233987B1 (en) 2019-12-31

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