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Tool material experiences from pressing of heat exchanger plates

Gabrielson, Per LU ; Lundberg, Maria and Hammam, Tag (2004) Proceedings of the International Conference on Recent Advancs in Manufacture and Use of Tools and Dies and Stamping of Steel Sheets In Proceedings of the International Conference on Recent Advances in Manufacture and Use of Tools and Dies and Stamping of Steel Sheets p.255-262
Abstract
Wear in forming tools and contact problems between sheet-metal and tool-material are common problems in manufacturing industries and sheet-metal-parts production. In this paper recent tool material experiences are presented. Quantitative determination of wear has been performed using micro hardness indentions made on the tool surface prior to pressings and thereafter measured. Wear tests are performed with both model tools in a wear test press and in one case study. It is shown in this paper that: VANCRON shows equally good anti-galling properties as VANADIS 4 with TICRON treatment in model tools. VANCRON was successfully used in a production tool (case study) for 1,000,000 pressings without galling problems. The wear is small and... (More)
Wear in forming tools and contact problems between sheet-metal and tool-material are common problems in manufacturing industries and sheet-metal-parts production. In this paper recent tool material experiences are presented. Quantitative determination of wear has been performed using micro hardness indentions made on the tool surface prior to pressings and thereafter measured. Wear tests are performed with both model tools in a wear test press and in one case study. It is shown in this paper that: VANCRON shows equally good anti-galling properties as VANADIS 4 with TICRON treatment in model tools. VANCRON was successfully used in a production tool (case study) for 1,000,000 pressings without galling problems. The wear is small and production can continue further. VANADIS 4 with TICRON treatment in the same application is recoated before 1,000,000 parts. The method of using micro hardness indentions appears to be a promising way to quantitatively determine wear depths on tool surfaces. The studied wear depths are of magnitude 0-10 μm and the precision of the method is estimated to ± 0.05 μm. It is possible to follow the wear already in an early stage with the method of using micro hardness indentions both in model tools and in production tools. It is complex to measure wear with a test method outside the actual pressing operation and it is difficult to compare the results from different test methods due to the differences in how the wear is achieved. The method with special Wear Test Press WTP is a method with result very close to the wear appearing in an actual pressing operation of heat exchanger plates. Increased depth accelerates test procedure compared to a production tool. (Less)
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author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Galling, Wear tests, Heat exchanger plates, Forming tools
in
Proceedings of the International Conference on Recent Advances in Manufacture and Use of Tools and Dies and Stamping of Steel Sheets
pages
255 - 262
publisher
Volvo Cars Body Components
conference name
Proceedings of the International Conference on Recent Advancs in Manufacture and Use of Tools and Dies and Stamping of Steel Sheets
external identifiers
  • Scopus:11144294072
language
English
LU publication?
yes
id
df0f8c0b-ade9-4b6e-95a4-73e59c043ef5 (old id 614822)
date added to LUP
2007-11-26 18:39:06
date last changed
2017-01-01 07:58:18
@inproceedings{df0f8c0b-ade9-4b6e-95a4-73e59c043ef5,
  abstract     = {Wear in forming tools and contact problems between sheet-metal and tool-material are common problems in manufacturing industries and sheet-metal-parts production. In this paper recent tool material experiences are presented. Quantitative determination of wear has been performed using micro hardness indentions made on the tool surface prior to pressings and thereafter measured. Wear tests are performed with both model tools in a wear test press and in one case study. It is shown in this paper that: VANCRON shows equally good anti-galling properties as VANADIS 4 with TICRON treatment in model tools. VANCRON was successfully used in a production tool (case study) for 1,000,000 pressings without galling problems. The wear is small and production can continue further. VANADIS 4 with TICRON treatment in the same application is recoated before 1,000,000 parts. The method of using micro hardness indentions appears to be a promising way to quantitatively determine wear depths on tool surfaces. The studied wear depths are of magnitude 0-10 μm and the precision of the method is estimated to ± 0.05 μm. It is possible to follow the wear already in an early stage with the method of using micro hardness indentions both in model tools and in production tools. It is complex to measure wear with a test method outside the actual pressing operation and it is difficult to compare the results from different test methods due to the differences in how the wear is achieved. The method with special Wear Test Press WTP is a method with result very close to the wear appearing in an actual pressing operation of heat exchanger plates. Increased depth accelerates test procedure compared to a production tool.},
  author       = {Gabrielson, Per and Lundberg, Maria and Hammam, Tag},
  booktitle    = {Proceedings of the International Conference on Recent Advances in Manufacture and Use of Tools and Dies and Stamping of Steel Sheets},
  keyword      = {Galling,Wear tests,Heat exchanger plates,Forming tools},
  language     = {eng},
  pages        = {255--262},
  publisher    = {Volvo Cars Body Components},
  title        = {Tool material experiences from pressing of heat exchanger plates},
  year         = {2004},
}