Details
| Original language | English |
|---|---|
| Pages (from-to) | 303-308 |
| Number of pages | 6 |
| Journal | Key Engineering Materials |
| Volume | 257-258 |
| Early online date | 15 Feb 2004 |
| Publication status | Published - 2004 |
Abstract
Plunge grinding operations carried out by means of profiled CBN or diamond wheels make high demands on the tool profile generation process, The use of conventional plunge dressing processes based on the reproduction of the dressing roller profile into the grinding wheel leads to a considerable wear of the dressing tool. The innovative dressing process CNC crushing is particularly suitable for profiling and sharpening superhard grinding wheels. The working principle is based on a punctual contact between the grinding tool and the dressing tool. The shape of the dressing roller is independent of the grinding wheel profile which is generated by the CNC-system of the machine tool through a combined movement of its axes, making the process significantly flexible. By means of a closed loop system the dressing speed can be continuously controlled so that no relative speed occurs between the tool and the grinding wheel. This contributes to a reduction of the dressing roller wear. In order to be dressable through form crushing, the grinding wheel bonding system has to be sufficiently brittle, so that grits and bond material can be pulled out by the dressing normal forces, which are concentrated in the contact point. This contribution describes a test method aimed at characterizing the grinding layer of a wheel in regard to its mechanical properties. The method, based on the execution of penetration investigations by dint of a single grain diamond tool, allows determining elasticity and brittleness of a grinding layer and delivers a qualitative assessment of its suitability to be dressed through CNC crushing, as analogy investigations have shown.
Keywords
- CNC Crushing, Diamond Grinding Wheels, Dressing, Grinding
ASJC Scopus subject areas
- Materials Science(all)
- General Materials Science
- Engineering(all)
- Mechanics of Materials
- Engineering(all)
- Mechanical Engineering
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In: Key Engineering Materials, Vol. 257-258, 2004, p. 303-308.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Characterization of Vitreous Bonded Grinding Wheels for CNC Crushing
AU - Denkena, B.
AU - Becker, J. C.
AU - Catoni, F.
PY - 2004
Y1 - 2004
N2 - Plunge grinding operations carried out by means of profiled CBN or diamond wheels make high demands on the tool profile generation process, The use of conventional plunge dressing processes based on the reproduction of the dressing roller profile into the grinding wheel leads to a considerable wear of the dressing tool. The innovative dressing process CNC crushing is particularly suitable for profiling and sharpening superhard grinding wheels. The working principle is based on a punctual contact between the grinding tool and the dressing tool. The shape of the dressing roller is independent of the grinding wheel profile which is generated by the CNC-system of the machine tool through a combined movement of its axes, making the process significantly flexible. By means of a closed loop system the dressing speed can be continuously controlled so that no relative speed occurs between the tool and the grinding wheel. This contributes to a reduction of the dressing roller wear. In order to be dressable through form crushing, the grinding wheel bonding system has to be sufficiently brittle, so that grits and bond material can be pulled out by the dressing normal forces, which are concentrated in the contact point. This contribution describes a test method aimed at characterizing the grinding layer of a wheel in regard to its mechanical properties. The method, based on the execution of penetration investigations by dint of a single grain diamond tool, allows determining elasticity and brittleness of a grinding layer and delivers a qualitative assessment of its suitability to be dressed through CNC crushing, as analogy investigations have shown.
AB - Plunge grinding operations carried out by means of profiled CBN or diamond wheels make high demands on the tool profile generation process, The use of conventional plunge dressing processes based on the reproduction of the dressing roller profile into the grinding wheel leads to a considerable wear of the dressing tool. The innovative dressing process CNC crushing is particularly suitable for profiling and sharpening superhard grinding wheels. The working principle is based on a punctual contact between the grinding tool and the dressing tool. The shape of the dressing roller is independent of the grinding wheel profile which is generated by the CNC-system of the machine tool through a combined movement of its axes, making the process significantly flexible. By means of a closed loop system the dressing speed can be continuously controlled so that no relative speed occurs between the tool and the grinding wheel. This contributes to a reduction of the dressing roller wear. In order to be dressable through form crushing, the grinding wheel bonding system has to be sufficiently brittle, so that grits and bond material can be pulled out by the dressing normal forces, which are concentrated in the contact point. This contribution describes a test method aimed at characterizing the grinding layer of a wheel in regard to its mechanical properties. The method, based on the execution of penetration investigations by dint of a single grain diamond tool, allows determining elasticity and brittleness of a grinding layer and delivers a qualitative assessment of its suitability to be dressed through CNC crushing, as analogy investigations have shown.
KW - CNC Crushing
KW - Diamond Grinding Wheels
KW - Dressing
KW - Grinding
UR - http://www.scopus.com/inward/record.url?scp=17644429698&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/KEM.257-258.303
DO - 10.4028/www.scientific.net/KEM.257-258.303
M3 - Article
AN - SCOPUS:17644429698
VL - 257-258
SP - 303
EP - 308
JO - Key Engineering Materials
JF - Key Engineering Materials
SN - 1013-9826
ER -