JPS56105451A - Cold-workable high tensile strength steel plate excellent in resistance to facial distortion - Google Patents
Cold-workable high tensile strength steel plate excellent in resistance to facial distortionInfo
- Publication number
- JPS56105451A JPS56105451A JP565180A JP565180A JPS56105451A JP S56105451 A JPS56105451 A JP S56105451A JP 565180 A JP565180 A JP 565180A JP 565180 A JP565180 A JP 565180A JP S56105451 A JPS56105451 A JP S56105451A
- Authority
- JP
- Japan
- Prior art keywords
- steel plate
- cold
- tensile strength
- high tensile
- strength steel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Heat Treatment Of Sheet Steel (AREA)
Abstract
PURPOSE: To prevent generation of facial distortions after press forming by a method wherein a residual stress suitable for restraining the facial distortions at press worked parts of the cold-workable high tensile strength steel plate is positively imparted to the steel plate.
CONSTITUTION: The cold-workable high tensile strength steel plate for use as a material for outer panels of automobiles is cold-rolled, annealed and temper-rolled. Immediately after these treatments, the steel plate is plastically bent by bending rolls, whereby the steel plate is provided with the residual stress δR which satisfies the expression δR≥0.4(Y.P-24) (where Y.P is the yield point), and then the plate is coiled. The residual stress may be provided by other methods, e.g., by using a special leveler before press forming, by conducting a different-circumference rolling during the temper rolling so as to impart a nonuniform winding characteristic to the plate, by one-side polishing, by one-side heat treatment or by plating. Accordingly, generation of facial distortions such as oil canning and piping effect which impair the appearance after the press-forming are prevented.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP565180A JPS56105451A (en) | 1980-01-23 | 1980-01-23 | Cold-workable high tensile strength steel plate excellent in resistance to facial distortion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP565180A JPS56105451A (en) | 1980-01-23 | 1980-01-23 | Cold-workable high tensile strength steel plate excellent in resistance to facial distortion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56105451A true JPS56105451A (en) | 1981-08-21 |
Family
ID=11617024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP565180A Pending JPS56105451A (en) | 1980-01-23 | 1980-01-23 | Cold-workable high tensile strength steel plate excellent in resistance to facial distortion |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56105451A (en) |
-
1980
- 1980-01-23 JP JP565180A patent/JPS56105451A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS56123327A (en) | Production of highly formable ferritic stainless steel sheet of good surface characteristic | |
| CN105087881A (en) | Annealing method for 304 stainless steel | |
| JPS5767129A (en) | Production of high-strength cold rolled steel plate for automobile | |
| JPS5871336A (en) | Production of high-strength austenitic stainless steel plate having excellent fatigue characteristic | |
| EP0390142A3 (en) | Process for producing grain-oriented electrical steel sheet having high magnetic flux density | |
| JPS56102562A (en) | Manufacture of al alloy plate for packing | |
| JPS56105451A (en) | Cold-workable high tensile strength steel plate excellent in resistance to facial distortion | |
| JPS56102565A (en) | Manufacture of al alloy plate for packing | |
| ATE201455T1 (en) | METHOD FOR PRODUCING STEEL SHEET OR STRAP FOR THE PRODUCTION OF CANS AND STEEL STRIP OR SHEET THEREFORE PRODUCED | |
| US3591427A (en) | Method of processing steel sheet or strip | |
| JPS53122612A (en) | Method of fabricating high tensile cold rolled steel plate | |
| JPS5531159A (en) | Manufacture of high strength cold rolled steel plate for press working | |
| JPS56227A (en) | Manufacture of grain-oriented electromagnetic steel plate of high flatness | |
| US3673009A (en) | Method for producing a part from steel sheet | |
| JPS5770233A (en) | Production of ferritic stainless steel sheet having excellent workability | |
| ATE278041T1 (en) | METHOD FOR PRODUCING NON-CORNORIENTED ELECTRICAL SHEET AND SHEETS PRODUCED BY THIS PROCESS | |
| JPS572841A (en) | Production of high strength cold-rolled steel plate which has high baking hardness and is superior in aging resistance and press workability by continuous annealing | |
| SU1342930A1 (en) | Method of treating strip from low-carbon steel | |
| JPS5757835A (en) | Production of steel plate for can making | |
| JPS57134576A (en) | Production of steel strip | |
| JPH02125813A (en) | Manufacture of oil tempered hard-drawn round bar wire for spring and spring | |
| JPS5719332A (en) | Production of high tensile plated steel plate of superior formability | |
| JPH0436420A (en) | Production of high tensile strength wire | |
| JPS6415356A (en) | Hot-rolled steel sheet excellent in adhesive strength of scale and its production | |
| JPS566708A (en) | Gold rolled steel sheet possessing excellent press formability and baking hardenability and its manufacture |