kucie półswobodne

English translation: semi-closed die forging

23:10 Sep 4, 2019
Polish to English translations [PRO]
Science - Science (general) / plastic working/forming
Polish term or phrase: kucie półswobodne
I came across "semi free form" and "open die forging" but in Polish publications. Not sure which option is correct.
Darius Saczuk
United States
Local time: 08:04
English translation:semi-closed die forging
Explanation:
Polish translations used semi-free, which cannot be found in western publications.
Open-die forging provides NO confinement of metal flow, so it is not półswobodne, which does.

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Polish sources:
Analiza możliwości zastosowania połączonego procesu kucia półswobodnego i kucia matrycowego do wytwarzania kół zębatych stożkowych
Analysis of the possibility of using the combined process semi-free forging and die forging technology to production bevel gears
http://yadda.icm.edu.pl/yadda/element/bwmeta1.element.baztec...

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Theoretical research works based on simulations by means of finite element method were conducted for three cases of the process: semi-free forging of parts
https://www.researchgate.net/publication/265733031_Forming_o...
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The process of forging can be divided into free forging, semi-free forging and drop-forging.
http://www.wm.pollub.pl/files/24/attachment/4180_MFNM-work.a...
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Western sources:
Closed die forging — The shaping of hot metal completely within the walls or cavities of two dies that come together to enclose the workpiece on all sides. The impression for the forging can be entirely in either die or divided between the top and bottom dies. Impression-die forging, often used interchangeably with the term closed-die forging, refers to a closed-die operation in which the dies contain a provision for controlling the flow of excess material, or flash, that is generated. By contrast, in flashless forging, the material is deformed in a cavity that allows little or no escape of excess material. See Impression Die Forging.
https://www.forging.org/forging/glossary-forging-terms.html

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2.3 Semi closed die forging operation
Only drop hammer type of force application is possible.
In case of open die and closed die forging operations the volume of raw material required is remaining same as that of the volume of final finished component. But in case of closed die forging operation the volume of the raw material is about 10% to 20% more than final component to be obtained.
To accommodate the excess volume of material it is required to provide some open space dies also called gutter.
Because of provision of gutter the flash is produces in the forged component.
This flash is unwanted material which has to be removed by trimming operation.
Flash and gutter is used only in case of closed die operation but not in open die or semi closed die forging operation.

https://me-mechanicalengineering.com/forging/

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Fig.2 Comparison of semi-closed die forging and enclosed die forging of cross pin. a Semi-closed die forging, b Enclosed die forging Figure 2 illustrates a
https://books.google.com/books?id=flj1CAAAQBAJ&pg=PA308&lpg=...

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Selected response from:

Frank Szmulowicz, Ph. D.
United States
Local time: 08:04
Grading comment
I decided to use this. Thank you, Frank. Thanks to Geopiet.
4 KudoZ points were awarded for this answer



Summary of answers provided
3semi-closed die forging
Frank Szmulowicz, Ph. D.
2open-die forging
geopiet


  

Answers


24 mins   confidence: Answerer confidence 2/5Answerer confidence 2/5
open-die forging


Explanation:
Open-die forging is also known as smith forging. In open-die forging, a hammer strikes and deforms the workpiece, which is placed on a stationary anvil. Open-die forging gets its name from the fact that the dies (the surfaces that are in contact with the workpiece) do not enclose the workpiece, allowing it to flow except where contacted by the dies. - https://en.wikipedia.org/wiki/Forging#Open-die_drop_forging

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Kucie półswobodne - polega na częściowym ograniczaniu swobodnego płynięcia metalu podczas wywierania nacisku narzędziem na część powierzchni przedkuwki. - https://pl.wikipedia.org/wiki/Kucie_półswobodne

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Note added at 31 mins (2019-09-04 23:41:30 GMT)
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Open-die forging is also known smith forging. In open-die forging, a hammer strikes and deforms the workpiece, which is placed on a stationary anvil. Open-die forging gets its name from the fact that the dies (the surfaces that are in contact with the workpiece) do not enclose the workpiece, allowing it to flow except where contacted by the dies. - https://www.canforge.com/open-die-forging/

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Note added at 32 mins (2019-09-04 23:42:24 GMT)
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Open-die forging, also known as free forging or smith forging, is the process of striking a hammer and deforming a workpiece, which is placed on a stationary anvil.

The piece of metal is deformed between “dies,” which are usually flat and don’t enclose the metal completely. - https://cantondropforge.com/open-vs-closed-die-forging/

geopiet
Native speaker of: Native in PolishPolish
PRO pts in category: 34
Login to enter a peer comment (or grade)

1 hr   confidence: Answerer confidence 3/5Answerer confidence 3/5
semi-closed die forging


Explanation:
Polish translations used semi-free, which cannot be found in western publications.
Open-die forging provides NO confinement of metal flow, so it is not półswobodne, which does.

ccccccc

Polish sources:
Analiza możliwości zastosowania połączonego procesu kucia półswobodnego i kucia matrycowego do wytwarzania kół zębatych stożkowych
Analysis of the possibility of using the combined process semi-free forging and die forging technology to production bevel gears
http://yadda.icm.edu.pl/yadda/element/bwmeta1.element.baztec...

cccc
Theoretical research works based on simulations by means of finite element method were conducted for three cases of the process: semi-free forging of parts
https://www.researchgate.net/publication/265733031_Forming_o...
ccccccccccc
The process of forging can be divided into free forging, semi-free forging and drop-forging.
http://www.wm.pollub.pl/files/24/attachment/4180_MFNM-work.a...
cccccccccccccccccc

Western sources:
Closed die forging — The shaping of hot metal completely within the walls or cavities of two dies that come together to enclose the workpiece on all sides. The impression for the forging can be entirely in either die or divided between the top and bottom dies. Impression-die forging, often used interchangeably with the term closed-die forging, refers to a closed-die operation in which the dies contain a provision for controlling the flow of excess material, or flash, that is generated. By contrast, in flashless forging, the material is deformed in a cavity that allows little or no escape of excess material. See Impression Die Forging.
https://www.forging.org/forging/glossary-forging-terms.html

---
2.3 Semi closed die forging operation
Only drop hammer type of force application is possible.
In case of open die and closed die forging operations the volume of raw material required is remaining same as that of the volume of final finished component. But in case of closed die forging operation the volume of the raw material is about 10% to 20% more than final component to be obtained.
To accommodate the excess volume of material it is required to provide some open space dies also called gutter.
Because of provision of gutter the flash is produces in the forged component.
This flash is unwanted material which has to be removed by trimming operation.
Flash and gutter is used only in case of closed die operation but not in open die or semi closed die forging operation.

https://me-mechanicalengineering.com/forging/

ccccccccccccccccccccccc

Fig.2 Comparison of semi-closed die forging and enclosed die forging of cross pin. a Semi-closed die forging, b Enclosed die forging Figure 2 illustrates a
https://books.google.com/books?id=flj1CAAAQBAJ&pg=PA308&lpg=...

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Frank Szmulowicz, Ph. D.
United States
Local time: 08:04
Native speaker of: Native in EnglishEnglish, Native in PolishPolish
PRO pts in category: 147
Grading comment
I decided to use this. Thank you, Frank. Thanks to Geopiet.
Login to enter a peer comment (or grade)



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