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Effect of tip profile
on cutting processability of a trapezoidal cutting blade
indented to an aluminum sheet
Seksan Chaijit, Shigeru Nagasawa, Yasushi Fukuzawa, Mitsuhiro Murayama and Isamu Katayama |
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Vol. 1 (2006), No. 8, 1301–1321
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Abstract |
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This paper is an investigation of detaching phenomena of a trapezoidal cutting blade on a wedged surface of a thin work sheet. To study critical conditions for cutting off an aluminum sheet, the wedged profile of the work sheet was experimentally studied by varying the tip thickness of the trapezoidal cutting blade, which simulated a crushed bevel blade. To analyze the detached condition and separation force of the wedged sheet, an elastoplastic finite element program was used to analyze wedge indentation to the work sheet. The following results were obtained: (i) the deformation of the wedged sheet can be classified in four patterns; (ii) the critical condition for cutting off the work sheet depends on the ratio of tip thickness by sheet thickness ; (iii) the separation of the work sheet occurred statistically for ; and (iv) the separation line force can be used to explain the necking mode and the detached condition. |
Keywords
shear cutting, detaching, elastoplastic FEM, separation
force, wedge indentation, upsetting
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Milestones
Received: 12 January 2006
Revised: 13 June 2006
Accepted: 27 July 2006
Published: 1 December 2006
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Authors |
| Seksan Chaijit | |
| Graduate School of Information
Science and Control Engineering Nagaoka University of Technology Nagaoka, Niigata 940-2188 Japan |
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| Shigeru Nagasawa | |
| Department of Mechanical
Engineering Nagaoka University of Technology Nagaoka, Niigata 940-2188 Japan |
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| Yasushi Fukuzawa | |
| Department of Mechanical
Engineering Nagaoka University of Technology Nagaoka, Niigata 940-2188 Japan |
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| Mitsuhiro Murayama | |
| Faculty of Business
Administration Nagaoka University Nagaoka, Niigata 940-0828 Japan |
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| Isamu Katayama | |
| Katayama Steel Rule Die Co.,
Ltd. Tokyo 162-0381 Japan |
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