Research on Production Method of Information Instrument Parts
| Project/Area Number |
13650133
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
機械工作・生産工学
|
|---|
| Research Institution | Takushoku University |
|---|
Principal Investigator |
ONA Hiroshi Takushoku University, Dept. of Mechanical System Engineering, Professor, 工学部, 教授 (30016430)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
市川 茂樹 拓殖大学, 工学部, 講師 (80193431)
|
|---|
| Project Period (FY) |
2001 – 2003
|
| Project Status |
Completed (Fiscal Year 2003)
|
| Budget Amount *help |
¥2,800,000 (Direct Cost: ¥2,800,000)
Fiscal Year 2003: ¥200,000 (Direct Cost: ¥200,000)
Fiscal Year 2002: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 2001: ¥1,700,000 (Direct Cost: ¥1,700,000)
|
|---|
| Keywords | Thin spring steel sheet / Cold roll forming / Squeeze forming / Tangent bender / Sprit roll / Edge wave / スプリングバック / 冷間ロール成形 / 繰り返し曲げ / パイプの製造 / SUS304 / 曲げ曲げ戻し成形 / タンジェントベンダー / 残留応力 / 薄板ばね鋼板 / ベンダー / 宇宙ステーション / 巻き・巻き戻しパイプ / ロケット輸送 / 遠隔操作 |
|---|
| Research Abstract |
The spring steel sheet that has high spring-back nature, high tensile strength, and low elongation is used to form the pipe. But, it was impossible to form the pipe because of the nature mentioned above. Recently, the demands of the plastic working for the forming of the material that have high strength and low elongation have been increased to reduce the weight of the products. The purpose of grant-in-aid for scientific research is to develop the new forming method for these materials.
I tried three forming method. (1) Traditional forming method, (2) Progressive bend and bend back forming method, (3) Less forming stand in (2).
The results of each method are as follows; (1) is very difficult because of occurrence of shape defects, and also it was impossible to eliminate the defects. (2)is the new forming method to form the material written above. The pipe formed by this forming method does not cause the shape defect, and also the operation to form the pipe is very easy.
The principle of the forming method of (2) is found by the experiment in the tangent bender apparatuses. Namely, even if the spring steel sheet is bent back to the flat sheet after the bending of 90 degree, the flat sheet deforms into the circular shape due to the spring back. (3) is the forming method done by only 4 stations instead of 36 stations in (2).
|
Report
(4 results)
Research Products
(15 results)
