JPS5710483A - Preparation of watch case - Google Patents

Preparation of watch case

Info

Publication number
JPS5710483A
JPS5710483A JP8431480A JP8431480A JPS5710483A JP S5710483 A JPS5710483 A JP S5710483A JP 8431480 A JP8431480 A JP 8431480A JP 8431480 A JP8431480 A JP 8431480A JP S5710483 A JPS5710483 A JP S5710483A
Authority
JP
Japan
Prior art keywords
watch case
watch
cut
hollow
preparation
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
Application number
JP8431480A
Other languages
Japanese (ja)
Inventor
Masaru Oda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Light Metal Co Ltd
Original Assignee
Nippon Light Metal Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Light Metal Co Ltd filed Critical Nippon Light Metal Co Ltd
Priority to JP8431480A priority Critical patent/JPS5710483A/en
Publication of JPS5710483A publication Critical patent/JPS5710483A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B37/00—Cases
    • G04B37/22—Materials or processes of manufacturing pocket watch or wrist watch cases

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Forging (AREA)

Abstract

PURPOSE:To save material and improve workability by a method wherein, after material has been extruded to form a watch case and made hollow by means of cold forging, the material is cut in such a way that it has the thickness suitable for one piece of a watch and made into a watch case. CONSTITUTION:Aluminum allloy is extruded and formed in conformity with the external shape of a watch case and the formed material is made hollow by means of cold forging. The hollowly formed material 2 is cut in such a way that it has the thickness suitable for one piece of watch and made into a basic material 3 to be reduced to a watch case. The hollow material cut into the basic material for making a watch case is forged to regulate its composition and increase its hardness, before being processed by cutting and provided with surface processing to form a watch case.
JP8431480A 1980-06-21 1980-06-21 Preparation of watch case Pending JPS5710483A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8431480A JPS5710483A (en) 1980-06-21 1980-06-21 Preparation of watch case

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8431480A JPS5710483A (en) 1980-06-21 1980-06-21 Preparation of watch case

Publications (1)

Publication Number Publication Date
JPS5710483A true JPS5710483A (en) 1982-01-20

Family

ID=13827038

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8431480A Pending JPS5710483A (en) 1980-06-21 1980-06-21 Preparation of watch case

Country Status (1)

Country Link
JP (1) JPS5710483A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02147885A (en) * 1988-11-29 1990-06-06 Namiki Precision Jewel Co Ltd Timepiece case and its production

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02147885A (en) * 1988-11-29 1990-06-06 Namiki Precision Jewel Co Ltd Timepiece case and its production

Similar Documents

Publication Publication Date Title
JPS5666305A (en) Method and apparauts for edging slab
JPS5710483A (en) Preparation of watch case
ZA832464B (en) Article of jewelry of platinum and gold
JPS5420943A (en) Manufacture of composite metallic wire and rod
JPS57181739A (en) Manufacture of roller for special industrial use
JPS5329595A (en) Metal flush plate
JPS5684438A (en) Decorative alloy
JPS55131152A (en) Manufacture of a -mg-si type alloy with high extrudability and hardenability, and extruded material thereof
JPS569085A (en) Production of metal composite material for decorative parts
JPS5433247A (en) Metal bonding method
JPS5645229A (en) Forming method for taper pipe provided with plural longitudinal groove at inner surface of pipe end
JPS56151125A (en) Blanking tool
JPS5662734A (en) Manufacture of rack
JPS52103786A (en) Method of cutting crystal body
JPS5583516A (en) Cutting method of sub-route port and fastening projection in anti-overflow valve to cut them in one stroke
JPS5353143A (en) Method of plant construction
JPS5689303A (en) Rolling method for slab
JPS5476478A (en) Preparation of single-v groove pulley
JPS575891A (en) Production of corrosion-resistant steel article
JPS5243938A (en) Manufacturing process of layered core
JPS56146633A (en) Hammered pattern production of kitchin-knife
JPS53114764A (en) Blooming method
Reiff Plasma Cutting Compared With Alternative Methods
JPS51113280A (en) Method of cutting metal plate
JPS5668505A (en) Broadside rolling method of plate material