Details
| Original language | English |
|---|---|
| Title of host publication | European Society for Precision Engineering and Nanotechnology, Conference Proceedings - 22nd International Conference and Exhibition, EUSPEN 2022 |
| Editors | Richard K. Leach, A. Akrofi-Ayesu, C. Nisbet, Dishi Phillips |
| Pages | 77-80 |
| Number of pages | 4 |
| ISBN (electronic) | 9781998999118 |
| Publication status | Published - 2022 |
| Event | 22nd International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2022 - Geneva, Switzerland Duration: 30 May 2022 → 3 Jun 2022 |
Publication series
| Name | European Society for Precision Engineering and Nanotechnology, Conference Proceedings - 22nd International Conference and Exhibition, EUSPEN 2022 |
|---|
Abstract
In this study, we report on batch production and use of flexible micro-grinding tools for finishing metallic surfaces. By using photo-structurable polyimide as a matrix material, many similar heads of these grinding tools can be produced at once using a photolithography process. The abrasive (silicon carbide) is easily integrated into the matrix by dispersing it into the polymer before applying the polyimide-abrasive-suspension (PAS) to the substrate. By varying the process parameters of batch production and the weight fractions of PAS, the layer thickness and material properties like the Young's modulus are adjusted in order to optimize the grinding performance in a given application. After separation, the tool heads are bonded to the tool shafts. Due to the two-part construction, the heads can be easily exchanged after wear and the shafts can be reused. In addition, the diameter of the tool shafts is tuned to standardized collets. This allows the use of the grinding tools in conventional machine tools, which enables easy integration into existing manufacturing cycles. The flexibility of the micro-grinding tools allows high precision machining of metallic surfaces, which will be shown for copper. The comparison of the infeed and the material removal shows the high flexibility of the tool. The grinding is followed by a roughness analysis of the surface. Single grinding processes are compared to multi grinding processes and it is shown that multiple steps halve the surface roughness in this grinding procedure. The tool wear is measured as well. First, we observe a high initial tool wear by a dressing process and after that it reduces to under 1 µm for each further grinding step with a tool path length of 42 mm.
Keywords
- high precision machining, micro production technology, micro-grinding, Precision engineering
ASJC Scopus subject areas
- Engineering(all)
- Industrial and Manufacturing Engineering
- Engineering(all)
- Mechanical Engineering
- Environmental Science(all)
- Environmental Engineering
- Materials Science(all)
- General Materials Science
- Physics and Astronomy(all)
- Instrumentation
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European Society for Precision Engineering and Nanotechnology, Conference Proceedings - 22nd International Conference and Exhibition, EUSPEN 2022. ed. / Richard K. Leach; A. Akrofi-Ayesu; C. Nisbet; Dishi Phillips. 2022. p. 77-80 (European Society for Precision Engineering and Nanotechnology, Conference Proceedings - 22nd International Conference and Exhibition, EUSPEN 2022).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Production and characterisation of batch manufactured flexible micro-grinding tools for finishing metallic surfaces
AU - Steinhoff, Lukas
AU - Dencker, Folke
AU - Wurz, Marc Christopher
N1 - Funding Information: The authors would like to thank the German Research Foundation for their organizational and financial support within the project "Batchprocessed flexible micro-grinding tools for end machining of metallic surfaces" (WU 558/26-1).
PY - 2022
Y1 - 2022
N2 - In this study, we report on batch production and use of flexible micro-grinding tools for finishing metallic surfaces. By using photo-structurable polyimide as a matrix material, many similar heads of these grinding tools can be produced at once using a photolithography process. The abrasive (silicon carbide) is easily integrated into the matrix by dispersing it into the polymer before applying the polyimide-abrasive-suspension (PAS) to the substrate. By varying the process parameters of batch production and the weight fractions of PAS, the layer thickness and material properties like the Young's modulus are adjusted in order to optimize the grinding performance in a given application. After separation, the tool heads are bonded to the tool shafts. Due to the two-part construction, the heads can be easily exchanged after wear and the shafts can be reused. In addition, the diameter of the tool shafts is tuned to standardized collets. This allows the use of the grinding tools in conventional machine tools, which enables easy integration into existing manufacturing cycles. The flexibility of the micro-grinding tools allows high precision machining of metallic surfaces, which will be shown for copper. The comparison of the infeed and the material removal shows the high flexibility of the tool. The grinding is followed by a roughness analysis of the surface. Single grinding processes are compared to multi grinding processes and it is shown that multiple steps halve the surface roughness in this grinding procedure. The tool wear is measured as well. First, we observe a high initial tool wear by a dressing process and after that it reduces to under 1 µm for each further grinding step with a tool path length of 42 mm.
AB - In this study, we report on batch production and use of flexible micro-grinding tools for finishing metallic surfaces. By using photo-structurable polyimide as a matrix material, many similar heads of these grinding tools can be produced at once using a photolithography process. The abrasive (silicon carbide) is easily integrated into the matrix by dispersing it into the polymer before applying the polyimide-abrasive-suspension (PAS) to the substrate. By varying the process parameters of batch production and the weight fractions of PAS, the layer thickness and material properties like the Young's modulus are adjusted in order to optimize the grinding performance in a given application. After separation, the tool heads are bonded to the tool shafts. Due to the two-part construction, the heads can be easily exchanged after wear and the shafts can be reused. In addition, the diameter of the tool shafts is tuned to standardized collets. This allows the use of the grinding tools in conventional machine tools, which enables easy integration into existing manufacturing cycles. The flexibility of the micro-grinding tools allows high precision machining of metallic surfaces, which will be shown for copper. The comparison of the infeed and the material removal shows the high flexibility of the tool. The grinding is followed by a roughness analysis of the surface. Single grinding processes are compared to multi grinding processes and it is shown that multiple steps halve the surface roughness in this grinding procedure. The tool wear is measured as well. First, we observe a high initial tool wear by a dressing process and after that it reduces to under 1 µm for each further grinding step with a tool path length of 42 mm.
KW - high precision machining
KW - micro production technology
KW - micro-grinding
KW - Precision engineering
UR - http://www.scopus.com/inward/record.url?scp=85145587797&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85145587797
T3 - European Society for Precision Engineering and Nanotechnology, Conference Proceedings - 22nd International Conference and Exhibition, EUSPEN 2022
SP - 77
EP - 80
BT - European Society for Precision Engineering and Nanotechnology, Conference Proceedings - 22nd International Conference and Exhibition, EUSPEN 2022
A2 - Leach, Richard K.
A2 - Akrofi-Ayesu, A.
A2 - Nisbet, C.
A2 - Phillips, Dishi
T2 - 22nd International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2022
Y2 - 30 May 2022 through 3 June 2022
ER -