GB1374915A - Formation of nuts - Google Patents
Formation of nutsInfo
- Publication number
- GB1374915A GB1374915A GB943572A GB943572A GB1374915A GB 1374915 A GB1374915 A GB 1374915A GB 943572 A GB943572 A GB 943572A GB 943572 A GB943572 A GB 943572A GB 1374915 A GB1374915 A GB 1374915A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coil
- casing
- nut
- welding
- bush
- 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
Links
- 230000015572 biosynthetic process Effects 0.000 title 1
- 238000003466 welding Methods 0.000 abstract 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 1
- 230000002411 adverse Effects 0.000 abstract 1
- 239000004411 aluminium Substances 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 1
- 229910000963 austenitic stainless steel Inorganic materials 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 239000010949 copper Substances 0.000 abstract 1
- 238000010894 electron beam technology Methods 0.000 abstract 1
- 238000005242 forging Methods 0.000 abstract 1
- 230000004927 fusion Effects 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 229910000734 martensite Inorganic materials 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 238000012856 packing Methods 0.000 abstract 1
- 229910001220 stainless steel Inorganic materials 0.000 abstract 1
- 239000010935 stainless steel Substances 0.000 abstract 1
- 238000005482 strain hardening Methods 0.000 abstract 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K15/00—Electron-beam welding or cutting
- B23K15/0046—Welding
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B37/00—Nuts or like thread-engaging members
- F16B37/12—Nuts or like thread-engaging members with thread-engaging surfaces formed by inserted coil-springs, discs, or the like; Independent pieces of wound wire used as nuts; Threaded inserts for holes
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wire Processing (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
1374915 Making lock nuts; welding by fusion M HATTAN W P GREEN and A H GOERING 1 March 1972 [8 March 1971] 9435/72 Headings B3A and B3R [Also in Division F2] A nut 10 is formed by locating within a casing 12 a helical metal coil 13 shaped internally to form a screw thread and being in a workhardened condition, and welding the radially outer portion of the coil to the casing 12 by locally heating said outer portion to a temperature locally adversely affecting the workhardened condition of the coil outer portion, while maintaining the radially inner portion of the coil at a temperature low enough to avoid destroying said work-hardened condition. The coil 13 is formed by drawing a circular wire 20 through a forming machine 21 to produce the cross-section shown and to work-harden the wire, and forcing the wire against a die 23, the wire being sheared by a cutter 24 after 5“ turns have been formed. The coil 13 and an end bush 14 are placed in the casing 12 and the assembly clamped between plates 41, 42, a packing washer 53 and a spring washer 55 under the plate 41 ensuring that the casing 12 and coil 13 are pressed firmly against the bush 14. A copper or aluminium mandrel 45 is screwed into the coil 13 to provide a heat sink during welding. Laser or electron beam welding, using a gun 56, heats a tapering zone (shown by dotted lines in Fig. 1) to weld the coil and the bush to the casing 12, and to weld adjacent turns of the coil 13 together at their radially outer portions. The upper coil 13<SP>1</SP> is not welded. After welding the nut is removed from the tool 40 and is deformed radially inwardly at two diametrically opposite points adjacent its upper surface 18 by forging dies 59 to make the nut self-locking (Fig. 6). Finally the nut is heat treated at a temperature high enough to harden the casing 12, coil 13, and bush 14 without destroying the work-hardening of the thread portion of the coil. The casing may be of martenitic stainless steel and the coil may be of semi-austenitic stainless steel, both parts, except for the welded periphery of the coil, will in the completed nut be in heat hardened martensitic condition.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US12181771A | 1971-03-08 | 1971-03-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1374915A true GB1374915A (en) | 1974-11-20 |
Family
ID=22398991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB943572A Expired GB1374915A (en) | 1971-03-08 | 1972-03-01 | Formation of nuts |
Country Status (3)
| Country | Link |
|---|---|
| CA (1) | CA975509A (en) |
| DE (1) | DE2210472A1 (en) |
| GB (1) | GB1374915A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101434021B (en) * | 2007-11-12 | 2010-10-13 | 包明涛 | Method for processing locknut of conical rotor motor |
| CN105127690A (en) * | 2015-09-30 | 2015-12-09 | 河南柴油机重工有限责任公司 | Machining tool and method for internal threads with ultra-large thread pitches |
| CN112222785A (en) * | 2020-10-20 | 2021-01-15 | 苏州市正如懿电子科技有限公司 | Copper nut machining process |
| CN113365755A (en) * | 2019-02-06 | 2021-09-07 | 日本发条株式会社 | Winding machine, manufacturing method of spiral spring and spiral spring |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE7602904U1 (en) * | 1976-02-03 | 1985-11-28 | Hofmann, Helmut | Screw-nut combination for high-strength pre-tensioned connections |
| FR2750747B1 (en) * | 1996-07-04 | 1998-09-18 | Snecma | THREADED SOCKET AND ASSEMBLY WITH AN ADDED THREAD |
| DE102006030894A1 (en) * | 2006-07-01 | 2008-01-03 | Beltec Industrietechnik Gmbh | Force transmission unit, e.g. for anchors in mining/tunneling, has a body of a compound fiber material and a reinforcement with a thread |
| CN101850495B (en) * | 2010-05-25 | 2011-08-17 | 烟台开发区蓝鲸金属修复有限公司 | Processing method of composite copper nuts |
| DE102016111933A1 (en) * | 2016-06-29 | 2018-01-04 | Sfs Intec Holding Ag | Lightweight construction fastener with wire thread nut |
| CN111853037B (en) * | 2020-07-22 | 2021-07-02 | 同济大学 | Check bolt fastener |
-
1972
- 1972-03-01 GB GB943572A patent/GB1374915A/en not_active Expired
- 1972-03-04 DE DE19722210472 patent/DE2210472A1/en active Pending
- 1972-03-06 CA CA136,488A patent/CA975509A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101434021B (en) * | 2007-11-12 | 2010-10-13 | 包明涛 | Method for processing locknut of conical rotor motor |
| CN105127690A (en) * | 2015-09-30 | 2015-12-09 | 河南柴油机重工有限责任公司 | Machining tool and method for internal threads with ultra-large thread pitches |
| CN113365755A (en) * | 2019-02-06 | 2021-09-07 | 日本发条株式会社 | Winding machine, manufacturing method of spiral spring and spiral spring |
| CN112222785A (en) * | 2020-10-20 | 2021-01-15 | 苏州市正如懿电子科技有限公司 | Copper nut machining process |
Also Published As
| Publication number | Publication date |
|---|---|
| CA975509A (en) | 1975-10-07 |
| DE2210472A1 (en) | 1972-09-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |