Conduction-Based Thermally Assisted Micromilling Process for Cutting Difficult-to-Machine Materials
The increasing demand for complex and wear-resistant forming tools made of difficult-to-machine materials requires efficient manufacturing processes. In terms of high-strength materials; highly suitable processes such as micromilling are limited in their potential due to the increased tool loads and...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-04-01
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| Series: | Journal of Manufacturing and Materials Processing |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2504-4494/4/2/34 |
| _version_ | 1797569631115804672 |
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| author | Timo Platt Alexander Meijer Dirk Biermann |
| author_facet | Timo Platt Alexander Meijer Dirk Biermann |
| author_sort | Timo Platt |
| collection | DOAJ |
| description | The increasing demand for complex and wear-resistant forming tools made of difficult-to-machine materials requires efficient manufacturing processes. In terms of high-strength materials; highly suitable processes such as micromilling are limited in their potential due to the increased tool loads and the resulting tool wear. This promotes hybrid manufacturing processes that offer approaches to increase the performance. In this paper; conduction-based thermally assisted micromilling using a prototype device to homogeneously heat the entire workpiece is investigated. By varying the workpiece temperature by 20 °C < <i>T<sub>W</sub></i> < 500 °C; a highly durable high-speed steel (HSS) AISI M3:2 (63 HRC) and a hot-work steel (HWS) AISI H11 (53 HRC) were machined using PVD-TiAlN coated micro-end milling tools (<i>d</i> = 1 mm). The influence of the workpiece temperature on central process conditions; such as tool wear and achievable surface quality; are determined. As expected; the temporary thermal softening of the materials leads to a reduction in the cutting forces and; thus; in the resulting tool wear for specific configurations of the thermal assistance. While only minor effects are detected regarding the surface topography; a significant reduction in the burr height is achieved. |
| first_indexed | 2024-03-10T20:14:23Z |
| format | Article |
| id | doaj.art-49a5d6dde8914c49a805964c1beba5b4 |
| institution | Directory Open Access Journal |
| issn | 2504-4494 |
| language | English |
| last_indexed | 2024-03-10T20:14:23Z |
| publishDate | 2020-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Manufacturing and Materials Processing |
| spelling | doaj.art-49a5d6dde8914c49a805964c1beba5b42023-11-19T22:40:09ZengMDPI AGJournal of Manufacturing and Materials Processing2504-44942020-04-01423410.3390/jmmp4020034Conduction-Based Thermally Assisted Micromilling Process for Cutting Difficult-to-Machine MaterialsTimo Platt0Alexander Meijer1Dirk Biermann2Institute of Machining Technology (ISF), TU Dortmund University, D-44227 Dortmund, GermanyInstitute of Machining Technology (ISF), TU Dortmund University, D-44227 Dortmund, GermanyInstitute of Machining Technology (ISF), TU Dortmund University, D-44227 Dortmund, GermanyThe increasing demand for complex and wear-resistant forming tools made of difficult-to-machine materials requires efficient manufacturing processes. In terms of high-strength materials; highly suitable processes such as micromilling are limited in their potential due to the increased tool loads and the resulting tool wear. This promotes hybrid manufacturing processes that offer approaches to increase the performance. In this paper; conduction-based thermally assisted micromilling using a prototype device to homogeneously heat the entire workpiece is investigated. By varying the workpiece temperature by 20 °C < <i>T<sub>W</sub></i> < 500 °C; a highly durable high-speed steel (HSS) AISI M3:2 (63 HRC) and a hot-work steel (HWS) AISI H11 (53 HRC) were machined using PVD-TiAlN coated micro-end milling tools (<i>d</i> = 1 mm). The influence of the workpiece temperature on central process conditions; such as tool wear and achievable surface quality; are determined. As expected; the temporary thermal softening of the materials leads to a reduction in the cutting forces and; thus; in the resulting tool wear for specific configurations of the thermal assistance. While only minor effects are detected regarding the surface topography; a significant reduction in the burr height is achieved.https://www.mdpi.com/2504-4494/4/2/34micromillingdifficult-to-machine materialshybrid processesthermally assistedheat conduction |
| spellingShingle | Timo Platt Alexander Meijer Dirk Biermann Conduction-Based Thermally Assisted Micromilling Process for Cutting Difficult-to-Machine Materials Journal of Manufacturing and Materials Processing micromilling difficult-to-machine materials hybrid processes thermally assisted heat conduction |
| title | Conduction-Based Thermally Assisted Micromilling Process for Cutting Difficult-to-Machine Materials |
| title_full | Conduction-Based Thermally Assisted Micromilling Process for Cutting Difficult-to-Machine Materials |
| title_fullStr | Conduction-Based Thermally Assisted Micromilling Process for Cutting Difficult-to-Machine Materials |
| title_full_unstemmed | Conduction-Based Thermally Assisted Micromilling Process for Cutting Difficult-to-Machine Materials |
| title_short | Conduction-Based Thermally Assisted Micromilling Process for Cutting Difficult-to-Machine Materials |
| title_sort | conduction based thermally assisted micromilling process for cutting difficult to machine materials |
| topic | micromilling difficult-to-machine materials hybrid processes thermally assisted heat conduction |
| url | https://www.mdpi.com/2504-4494/4/2/34 |
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