| Project/Area Number |
24560141
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Multi-year Fund |
|---|
| Section | 一般 |
|---|
| Research Field |
Production engineering/Processing studies
|
|---|
| Research Institution | Ryukoku University (2014)
The University of Shiga Prefecture (2012-2013) |
|---|
Principal Investigator |
OGAWA Keiji 龍谷大学, 理工学部, 講師 (80405232)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
NAKAGAWA Heisaburo 滋賀県立大学, 工学部, 教授 (50033345)
TANABE Hirotaka 滋賀県立大学, 工学部, 准教授 (00275174)
|
|---|
| Project Period (FY) |
2012-04-01 – 2015-03-31
|
| Project Status |
Completed (Fiscal Year 2014)
|
| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2014: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2012: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
|
|---|
| Keywords | 生産工学・加工学 / 特殊加工 / レーザ加工 / 表面改質 / 焼入れ / 高精度 / レーザ |
|---|
| Outline of Final Research Achievements |
Micro-cutting edges are often used for die cutting of such as functional films. A hardening process is needed because the ridgelines of micro-cutting edges require not only wear resistance, but also sharpness and shape accuracy. A method of laser hardening after machining for the micro-cutting edge fabrication was developed. This process uses laser hardening after shape fabrication of the micro-cutting edge in a pre-hardened steel workpiece. However, edge melting due to overheating during laser irradiation is likely to occur because the heat capacity is very small. Hence, a novel method to overcome these issues is needed. Therefore, a novel method such as micro-cutting edge shape formation after laser hardening was proposed and demonstrated its effects for micro-cutting edges. Effects of this method was investigated comparing with the method of laser hardening after machining. Some experiments results revealed applicability of the method to curve-shaped micro-cutting edges.
|
