JPH05165B2 - - Google Patents
Info
- Publication number
- JPH05165B2 JPH05165B2 JP17678484A JP17678484A JPH05165B2 JP H05165 B2 JPH05165 B2 JP H05165B2 JP 17678484 A JP17678484 A JP 17678484A JP 17678484 A JP17678484 A JP 17678484A JP H05165 B2 JPH05165 B2 JP H05165B2
- Authority
- JP
- Japan
- Prior art keywords
- metal plate
- slit
- residual stress
- pin
- width
- 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.)
- Expired - Lifetime
Links
- 229910052751 metal Inorganic materials 0.000 claims description 27
- 239000002184 metal Substances 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 13
- 238000009826 distribution Methods 0.000 description 12
- 210000005069 ears Anatomy 0.000 description 9
- 238000005452 bending Methods 0.000 description 8
- 238000005520 cutting process Methods 0.000 description 7
- 238000001259 photo etching Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 101700004678 SLIT3 Proteins 0.000 description 1
- 102100027339 Slit homolog 3 protein Human genes 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P25/00—Auxiliary treatment of workpieces, before or during machining operations, to facilitate the action of the tool or the attainment of a desired final condition of the work, e.g. relief of internal stress
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D19/00—Shearing machines or shearing devices cutting by rotary discs
- B23D19/08—Shearing machines or shearing devices cutting by rotary discs for special use, e.g. for cutting curves, for chamfering edges
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electrodes For Cathode-Ray Tubes (AREA)
- Lead Frames For Integrated Circuits (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17678484A JPS6156835A (ja) | 1984-08-27 | 1984-08-27 | 残留応力制御方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17678484A JPS6156835A (ja) | 1984-08-27 | 1984-08-27 | 残留応力制御方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6156835A JPS6156835A (ja) | 1986-03-22 |
JPH05165B2 true JPH05165B2 (enrdf_load_stackoverflow) | 1993-01-05 |
Family
ID=16019784
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17678484A Granted JPS6156835A (ja) | 1984-08-27 | 1984-08-27 | 残留応力制御方法 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6156835A (enrdf_load_stackoverflow) |
-
1984
- 1984-08-27 JP JP17678484A patent/JPS6156835A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6156835A (ja) | 1986-03-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPH05165B2 (enrdf_load_stackoverflow) | ||
JPH0810804A (ja) | 厚板の圧延方法 | |
JP2808217B2 (ja) | リードフレーム用薄板条材の熱処理方法 | |
JP2560322B2 (ja) | 金属帯片の残留応力低減方法 | |
JP3064523B2 (ja) | Icリードフレーム用帯板の製造方法及びその装置 | |
JP3080232B2 (ja) | 打ち抜き加工性に優れたリードフレーム材料およびその製造方法 | |
JP2012020305A (ja) | 薄型小断面積異形条の矯正方法及び矯正装置 | |
JPH0510826B2 (enrdf_load_stackoverflow) | ||
JP2775910B2 (ja) | リードフレーム材の残留歪み除去方法 | |
JP7255614B2 (ja) | キャンバー制御装置および金属板の製造方法 | |
JPS59188952A (ja) | リ−ドフレ−ムの製造方法 | |
JPH06154802A (ja) | アングル材の製造方法 | |
JPH06260587A (ja) | 加熱収縮の小さいリードフレーム材料の製造方法 | |
JPH0669565B2 (ja) | 金属帯板の残留応力低減方法 | |
JPS607571B2 (ja) | ステ−タ−打抜方法 | |
JP2606977B2 (ja) | 半導体装置用リードフレームの製造方法 | |
JPH11179422A (ja) | 薄鋼帯の形状制御方法 | |
JP2002043498A (ja) | 半導体用銅系リード材およびその製造方法 | |
JPS5957466A (ja) | 接続片を備えた電気デバイス | |
JP3093385B2 (ja) | 板材のエッジング圧延方法 | |
JPH01138021A (ja) | 帯板の曲げ加工装置 | |
JPS61269350A (ja) | リ−ドフレ−ムの矯正方法 | |
JPH04231102A (ja) | Icリードフレーム材の製造方法 | |
JPH04322819A (ja) | ストレスフリー鋼板の製造方法 | |
JP2000288638A (ja) | 金属板材の歪み防止方法 |