Details
| Original language | English |
|---|---|
| Pages (from-to) | 331-334 |
| Number of pages | 4 |
| Journal | International Journal of Material Forming |
| Volume | 3 |
| Issue number | SUPPL. 1 |
| Publication status | Published - 12 Jun 2010 |
Abstract
During hot massive forming processes forge tools are exposed to high contact temperatures up to 1250°C. The cooling and the lubrication of forging dies of automated processes have to be effected in shorter cycle times within a small time frame at extremely high cooling rates. To reduce the thermal stress and to dissipate an increased heat quantity, a new concept for cooling a forging bolt has been developed. A high pressure system has been included additionally in an already existing low pressure spray system. The results of the conducted analysis verified a positive influence on the tool abrasion by using the high-pressure airless cooling in combination with common low-pressure cooling systems for local hard thermal stressed forging tools. The required quantity of cooling and lubrication solvent has been totally increased by additional admission of the high pressure spray head. To configure a high-pressure cooling lubrication of selected die areas it is necessary to expose the total surface of the forging tool via the presented geometry. Since the high-pressure technology does not provide for a nebulization of the cooling medium, the tool areas not directly exposed to the lubricant will not be coated. The application of the high pressure technology for additional cooling of highly stressed tool areas is especially relevant for circulation cooling lubrication systems. Due to the higher consumption of water and lubricant the application of the presented hybrid technology for systems with loss lubrication is neither ecologically nor economically suitable.
Keywords
- Cooling, Forging, High-pressure-cooling, Lubrication
ASJC Scopus subject areas
- Materials Science(all)
- General Materials Science
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In: International Journal of Material Forming, Vol. 3, No. SUPPL. 1, 12.06.2010, p. 331-334.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Cooling and lubrication of automated forging processes with high-pressure systems
AU - Behrens, Bernd Arno
AU - Lueken, Ingo
AU - Odening, Dirk
N1 - Funding information: We would like to thank the Federal Ministry of Economics and Technology (Bundesministerium für Wirtschaft und Technologie BMWI), the Arbeitsgemeinschaft Industrieller Forschungsver-einigungen AiF and the Industrieverband Massiv-umformung e. V. IMU for their support in this topic and enabling research projects about it.
PY - 2010/6/12
Y1 - 2010/6/12
N2 - During hot massive forming processes forge tools are exposed to high contact temperatures up to 1250°C. The cooling and the lubrication of forging dies of automated processes have to be effected in shorter cycle times within a small time frame at extremely high cooling rates. To reduce the thermal stress and to dissipate an increased heat quantity, a new concept for cooling a forging bolt has been developed. A high pressure system has been included additionally in an already existing low pressure spray system. The results of the conducted analysis verified a positive influence on the tool abrasion by using the high-pressure airless cooling in combination with common low-pressure cooling systems for local hard thermal stressed forging tools. The required quantity of cooling and lubrication solvent has been totally increased by additional admission of the high pressure spray head. To configure a high-pressure cooling lubrication of selected die areas it is necessary to expose the total surface of the forging tool via the presented geometry. Since the high-pressure technology does not provide for a nebulization of the cooling medium, the tool areas not directly exposed to the lubricant will not be coated. The application of the high pressure technology for additional cooling of highly stressed tool areas is especially relevant for circulation cooling lubrication systems. Due to the higher consumption of water and lubricant the application of the presented hybrid technology for systems with loss lubrication is neither ecologically nor economically suitable.
AB - During hot massive forming processes forge tools are exposed to high contact temperatures up to 1250°C. The cooling and the lubrication of forging dies of automated processes have to be effected in shorter cycle times within a small time frame at extremely high cooling rates. To reduce the thermal stress and to dissipate an increased heat quantity, a new concept for cooling a forging bolt has been developed. A high pressure system has been included additionally in an already existing low pressure spray system. The results of the conducted analysis verified a positive influence on the tool abrasion by using the high-pressure airless cooling in combination with common low-pressure cooling systems for local hard thermal stressed forging tools. The required quantity of cooling and lubrication solvent has been totally increased by additional admission of the high pressure spray head. To configure a high-pressure cooling lubrication of selected die areas it is necessary to expose the total surface of the forging tool via the presented geometry. Since the high-pressure technology does not provide for a nebulization of the cooling medium, the tool areas not directly exposed to the lubricant will not be coated. The application of the high pressure technology for additional cooling of highly stressed tool areas is especially relevant for circulation cooling lubrication systems. Due to the higher consumption of water and lubricant the application of the presented hybrid technology for systems with loss lubrication is neither ecologically nor economically suitable.
KW - Cooling
KW - Forging
KW - High-pressure-cooling
KW - Lubrication
UR - http://www.scopus.com/inward/record.url?scp=78651580125&partnerID=8YFLogxK
U2 - 10.1007/s12289-010-0774-4
DO - 10.1007/s12289-010-0774-4
M3 - Article
AN - SCOPUS:78651580125
VL - 3
SP - 331
EP - 334
JO - International Journal of Material Forming
JF - International Journal of Material Forming
SN - 1960-6206
IS - SUPPL. 1
ER -