Details
| Original language | English |
|---|---|
| Pages (from-to) | 749-758 |
| Number of pages | 10 |
| Journal | Precision engineering |
| Volume | 38 |
| Issue number | 4 |
| Publication status | Published - 21 Apr 2014 |
Abstract
In order to increase tool life and improve workpiece quality, cutting processes with geometrically defined cutters demand inserts with a prepared cutting edge. Chamfers are widely used in many processes, since they can provide edge strengthening without damaging the chip flow. In order to achieve a stable and reliable cutting process, uniform chamfer geometry along the insert and high edge quality are necessary. For this, proper grinding strategies for chamfer manufacturing must be taken into account. With the objective of getting knowledge about the chamfer manufacturing process, strategies for grinding of chamfers are investigated in this paper. Chamfers were ground on PCBN, mixed ceramic and cemented carbide cutting inserts with a vitrified bond diamond grinding wheel. A single grain chip thickness model is used to characterize the process and different grinding strategies are analyzed in terms of reduction of chamfer geometry deviation. It was found that high insert rotational speeds increase the edge chipping and that the cutting insert material has a considerable influence on the chamfer geometry deviation.
Keywords
- Cutting edge preparation, Tool grinding
ASJC Scopus subject areas
- Engineering(all)
- General Engineering
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In: Precision engineering, Vol. 38, No. 4, 21.04.2014, p. 749-758.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Strategies for grinding of chamfers in cutting inserts
AU - Ventura, C. E.H.
AU - Köhler, J.
AU - Denkena, B.
N1 - Funding information: The authors of the paper gratefully acknowledge the financial support received from CAPES (Brazilian Federal Agency for the Support and Evaluation of Graduate Education), grant number BEX4202/10-4.
PY - 2014/4/21
Y1 - 2014/4/21
N2 - In order to increase tool life and improve workpiece quality, cutting processes with geometrically defined cutters demand inserts with a prepared cutting edge. Chamfers are widely used in many processes, since they can provide edge strengthening without damaging the chip flow. In order to achieve a stable and reliable cutting process, uniform chamfer geometry along the insert and high edge quality are necessary. For this, proper grinding strategies for chamfer manufacturing must be taken into account. With the objective of getting knowledge about the chamfer manufacturing process, strategies for grinding of chamfers are investigated in this paper. Chamfers were ground on PCBN, mixed ceramic and cemented carbide cutting inserts with a vitrified bond diamond grinding wheel. A single grain chip thickness model is used to characterize the process and different grinding strategies are analyzed in terms of reduction of chamfer geometry deviation. It was found that high insert rotational speeds increase the edge chipping and that the cutting insert material has a considerable influence on the chamfer geometry deviation.
AB - In order to increase tool life and improve workpiece quality, cutting processes with geometrically defined cutters demand inserts with a prepared cutting edge. Chamfers are widely used in many processes, since they can provide edge strengthening without damaging the chip flow. In order to achieve a stable and reliable cutting process, uniform chamfer geometry along the insert and high edge quality are necessary. For this, proper grinding strategies for chamfer manufacturing must be taken into account. With the objective of getting knowledge about the chamfer manufacturing process, strategies for grinding of chamfers are investigated in this paper. Chamfers were ground on PCBN, mixed ceramic and cemented carbide cutting inserts with a vitrified bond diamond grinding wheel. A single grain chip thickness model is used to characterize the process and different grinding strategies are analyzed in terms of reduction of chamfer geometry deviation. It was found that high insert rotational speeds increase the edge chipping and that the cutting insert material has a considerable influence on the chamfer geometry deviation.
KW - Cutting edge preparation
KW - Tool grinding
UR - http://www.scopus.com/inward/record.url?scp=84905097197&partnerID=8YFLogxK
U2 - 10.1016/j.precisioneng.2014.04.002
DO - 10.1016/j.precisioneng.2014.04.002
M3 - Article
AN - SCOPUS:84905097197
VL - 38
SP - 749
EP - 758
JO - Precision engineering
JF - Precision engineering
SN - 0141-6359
IS - 4
ER -