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HIGH-SPEED MILLING OF NICKEL-BASED SUPERALLOYS
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UNSPECIFIED (1992) HIGH-SPEED MILLING OF NICKEL-BASED SUPERALLOYS. In: 7TH CONF OF THE IRISH MANUFACTURING COMMITTEE ON ADVANCED MANUFACTURING TECHNOLOGY, AUG 29-31, 1990, UNIV DUBLIN, TRINITY COLL, DUBLIN, IRELAND.
Full text not available from this repository.Abstract
The use of the recently developed 70-degrees bevel cutter with tangentially arranged positively raked carbide inserts (P40 grade) has led to the use of higher cutting conditions than those employed when milling the nickel-based nimonic 75 alloy with a 45-degrees approach-angle cutter having negatively raked carbide inserts. This paper discusses the results obtained with different cutter/insert combinations when machining nickel alloys under various cutting conditions. The K20 grade of cemented-carbide tools out-performed the K40 grade when milling with a 45-degrees approach-angle cutter due to their improved properties. Chipping and/or fracture of the tool edges were the dominant failure modes under most of the conditions tested, these being caused by a combination of high temperature and high thermal and mechanical stress, as well as adhesion of the work material on the tool rake-face during milling. Tool fracture can be caused also by attritional wear and thermal cracking mainly at the high temperatures usually generated under high cutting conditions. The positive cutter/insert combination results in a smooth cutting action, lesser power consumption and a very good surface finish.
| Item Type: | Conference Item (UNSPECIFIED) |
|---|---|
| Subjects: | T Technology T Technology > TS Manufactures T Technology > TA Engineering (General). Civil engineering (General) |
| Journal or Publication Title: | JOURNAL OF MATERIALS PROCESSING TECHNOLOGY |
| Publisher: | ELSEVIER SCIENCE SA LAUSANNE |
| ISSN: | 0924-0136 |
| Date: | September 1992 |
| Volume: | 33 |
| Number: | 4 |
| Number of Pages: | 9 |
| Page Range: | pp. 429-437 |
| Publication Status: | Published |
| Title of Event: | 7TH CONF OF THE IRISH MANUFACTURING COMMITTEE ON ADVANCED MANUFACTURING TECHNOLOGY |
| Location of Event: | UNIV DUBLIN, TRINITY COLL, DUBLIN, IRELAND |
| Date(s) of Event: | AUG 29-31, 1990 |
| URI: | http://wrap.warwick.ac.uk/id/eprint/21772 |
Data sourced from Thomson Reuters' Web of Knowledge
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