JPS57112930A - Portable watch case by thin plate bulge forming - Google Patents
Portable watch case by thin plate bulge formingInfo
- Publication number
- JPS57112930A JPS57112930A JP55188102A JP18810280A JPS57112930A JP S57112930 A JPS57112930 A JP S57112930A JP 55188102 A JP55188102 A JP 55188102A JP 18810280 A JP18810280 A JP 18810280A JP S57112930 A JPS57112930 A JP S57112930A
- Authority
- JP
- Japan
- Prior art keywords
- watch case
- stiffener
- outer shell
- shell material
- workability
- 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
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
PURPOSE: To enable simple manufacture at low cost in manufacturing of a portable watch case by bulge forming an outer shell material of the case making a stiffener made of soft metal excellent in workability a working pressure medium.
CONSTITUTION: A metallic material 3 as an outer shell material such as gold, silver, stainless steel, brass, nickel silver etc. and a stiffener 4 excellent in workability such as lead, tin, aluminum, zinc alloy etc. are set in a forming mold made up of a female die 5, a male die 6, a knock out 7 and a punch 8. Soft stiffener 4 is pressed by the punch 8 at normal temperature and the outer shell material 3 is bulge formed to the form of a watch case by the pressure simultaneously and to one body. After removing excess metal, the formed product is polished and made to a watch case adding secondary parts.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55188102A JPS57112930A (en) | 1980-12-29 | 1980-12-29 | Portable watch case by thin plate bulge forming |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55188102A JPS57112930A (en) | 1980-12-29 | 1980-12-29 | Portable watch case by thin plate bulge forming |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57112930A true JPS57112930A (en) | 1982-07-14 |
Family
ID=16217730
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55188102A Pending JPS57112930A (en) | 1980-12-29 | 1980-12-29 | Portable watch case by thin plate bulge forming |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57112930A (en) |
-
1980
- 1980-12-29 JP JP55188102A patent/JPS57112930A/en active Pending
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1184002A (en) | Connection between a Ferrule and a Tab | |
JPS5762820A (en) | Method of secondary operation for metallic product | |
IT7924620A0 (en) | PROCEDURE FOR SHAPING A METALLIC ALLOY PRODUCT. | |
JPS57112930A (en) | Portable watch case by thin plate bulge forming | |
JPS555101A (en) | Casting method for wrapping metal | |
JPS5617216A (en) | Plastic press die and production thereof | |
JPS5324195A (en) | Rotary metal mold for forming bent portion | |
JPS5570426A (en) | Punching die for helical gear | |
JPS5714440A (en) | Method and device for production of product having tooth profile | |
JPS574327A (en) | Method and device for manufacturing gear by press work | |
JPS57210651A (en) | Lead frame and manufacture thereof | |
JPS57112938A (en) | Manufacture of dial plate of timepiece | |
JPS5768226A (en) | Fin forming method | |
JPS5524753A (en) | Drawing die | |
JPS56105881A (en) | Production of watch parts | |
JPS5472759A (en) | Manufacture of dies | |
JPS5752532A (en) | Manufacture of flat key by pressure shaping | |
JPS5725224A (en) | Production of watch parts | |
GB1171010A (en) | Process for Manufacturing a Timepiece Case by Die-Forming. | |
JPS56134039A (en) | Production of watch case band | |
JPS57199519A (en) | Shaping method of split-ring | |
JPS53142360A (en) | Manufacture of thin walled composite pipe | |
JPS52140406A (en) | Production of powder sintered article | |
JPS53112221A (en) | Vacuum vessel | |
JPS5785624A (en) | Manufacture of press die |