JPH02290922A - Production of high strength weld nut - Google Patents
Production of high strength weld nutInfo
- Publication number
- JPH02290922A JPH02290922A JP11247889A JP11247889A JPH02290922A JP H02290922 A JPH02290922 A JP H02290922A JP 11247889 A JP11247889 A JP 11247889A JP 11247889 A JP11247889 A JP 11247889A JP H02290922 A JPH02290922 A JP H02290922A
- Authority
- JP
- Japan
- Prior art keywords
- nut
- strength
- weld nut
- high strength
- treatment
- 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.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 239000000463 material Substances 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims description 6
- 238000010791 quenching Methods 0.000 claims description 6
- 230000000171 quenching effect Effects 0.000 claims description 6
- 229910000712 Boron steel Inorganic materials 0.000 claims description 5
- 238000005496 tempering Methods 0.000 claims description 5
- PPWPWBNSKBDSPK-UHFFFAOYSA-N [B].[C] Chemical compound [B].[C] PPWPWBNSKBDSPK-UHFFFAOYSA-N 0.000 claims description 4
- 238000005242 forging Methods 0.000 claims 2
- 238000003466 welding Methods 0.000 abstract description 6
- 238000007796 conventional method Methods 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 abstract description 3
- 229910052799 carbon Inorganic materials 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 238000005482 strain hardening Methods 0.000 abstract description 2
- 230000006866 deterioration Effects 0.000 abstract 1
- 230000013011 mating Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Forging (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は例えば自動車のボディヘ各種部品を取り付ける
ために使用される高強度ウエルドナットの製造方法に関
するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method of manufacturing a high-strength weld nut used for attaching various parts to the body of an automobile, for example.
（従来の技術）
ウエルドナントはそれ自体を自動車のボディ用鋼板等に
溶接して使用されるものであるため、溶接性に優れた材
質からなるものであるが、強度の点では一般のナットに
比較して優れたものではない。そこで特に強度が要求さ
れる部分には高強度のウエルドナットが求められるが、
一Ｃに高強度材は溶接熱により強度が劣化し易い欠点が
ある。(Prior art) Weld nuts are used by welding themselves to steel plates for automobile bodies, so they are made of a material with excellent weldability, but in terms of strength, they are not as strong as regular nuts. It's not great in comparison. Therefore, high-strength weld nuts are required for parts where strength is particularly required.
High-strength materials in 1C have the disadvantage that their strength tends to deteriorate due to welding heat.
このため従来は第２図に示されるように、高強度材から
なるナット００）の外側を溶接性に優れたプレス材（１
１）で包み、このプレス材（１１）を相手材０３）に溶
接することにより冫容接熱からナノトを保護する工夫が
なされていた。しかし第２図のようなナントはコスト高
となり、またナット溶接の作業性も悪いものであった。For this reason, conventionally, as shown in Fig. 2, the outside of the nut 00) made of high-strength material was covered with a pressed material (1) with excellent weldability.
1) and then welding this pressed material (11) to the mating material 03) to protect the nanots from physical heat contact. However, the Nantes shown in FIG. 2 was expensive and the workability of nut welding was poor.
（発明が解決しようとする課題）
本発明は上記したような従来の問題点を解決して、直接
溶接を行っても強度が劣化することのない高強度ウエル
ドナットの製造方法を提供するために完成されたもので
ある。(Problems to be Solved by the Invention) The present invention solves the above-mentioned conventional problems and provides a method for manufacturing a high-strength weld nut whose strength does not deteriorate even when directly welded. It is complete.
（課題を解決するための手段）
上記の課題を解決するためになされた第１の発明は、非
調質材によりナットを圧造し、ねじ切り後、ブルーイン
ク処理を施すことを特徴とするものである。(Means for Solving the Problems) A first invention made to solve the above problems is characterized in that a nut is forged from a non-temperature material, and after threading, it is treated with blue ink. be.
また同一の課題を解決するためになされた第２の発明は
、低カーボンボロン鋼によりナットを圧造し、ねじ切り
後、焼入れ焼戻し処理を施すことを特徴とするものであ
る。A second invention made to solve the same problem is characterized in that the nut is forged from low-carbon boron steel, threaded, and then quenched and tempered.
第１の発明においては、例えば一般に市販されている非
調質材を素材として使用する。この非調質材はＣ Ｏ．
１２％、Ｓｉ ０．２２％、Ｍｎ Ｏ．１３４％、ＰＯ
．００１％、Ｓ Ｏ．００６％、Ｃｒ Ｏ．０５％、Ａ
Ｉ ０．０３２％、Ｎｂ Ｏ．０５％、残部Ｆｅの化学
組成を持つ高靭性高張力線材である。このような非調質
材を素材として、常法によりナットの冷間圧造とねじ切
りを行った後、プルーイング処理が施される。ブルーイ
ンク処理は冷間加工された材料を２５０〜４５０゜Ｃに
加熱して冷間加工による内在応力の除去と降伏強さを高
める熱処理を意味し、これにより非調質材から成形され
たナットはねし抜け荷重がブルーインク処理前よりも５
％以上も増加し、高強度ウエルドナットとなる。しかも
このようにして製造された高強度ウエルドナットは加熱
されても硬さ上昇や脆弱化が生じにくく、直接相手材に
溶接しても強度が劣化することがない。In the first invention, for example, a generally commercially available non-temperature material is used as the material. This non-tempered material is CO.
12%, Si 0.22%, MnO. 134%, P.O.
．． 001%, SO. 006%, CrO. 05%, A
I 0.032%, Nb O. It is a high toughness and high tensile strength wire rod with a chemical composition of 0.5% Fe and the balance Fe. Using such a non-heat treated material as a raw material, a nut is cold-forged and thread-cut using a conventional method, and then subjected to a pluing process. Blue ink treatment refers to a heat treatment in which cold-worked materials are heated to 250 to 450°C to remove the inherent stress caused by cold working and increase yield strength. Splash-out load is 5 more than before blue ink treatment
% or more, resulting in a high-strength weld nut. In addition, the high-strength weld nut manufactured in this way does not easily increase in hardness or become brittle even when heated, and its strength does not deteriorate even when directly welded to a mating material.
次に第２の発明においては、例えば一般に市販されてい
る低カーボンボロン鋼を素材として使用する。この素材
は、Ｃ Ｏ．１８〜０．２３％、Ｓｉ Ｏ．１５〜０．
３５％、Ｍｎ Ｏ．９５ 〜１．２５％、Ｐ Ｏ．０３
％以下、８０．０３％以下、Ｃｒ Ｏ．２０％以下、ｎ
ｏ．ｏｏｏｓ％以上、残部Ｆｅの化学組成を持つ鋼材
である。このような低カーボンボロン鋼に常法によりナ
ットの冷間圧造とねじ切りを行い、焼入れ焼戻し処理が
施される。焼入れは水焼入れ法又は油焼入れ法によって
行われ、その後４００゜Ｃ以下で焼戻し処理を行う。焼
戻し温度が高くなると伸び率や衝撃値は増加するが引張
強さや耐力は逆に低下するので、１００〜３００゜Ｃ程
度で焼戻しを行うことが好ましい。このように低カーボ
ンボロン鋼の焼入れ焼戻し処理により得られたナットは
引張強度が１２０〜１５０ ｋｇ ／ ＋ｎｍ２となり
、しかも溶接熱により加熱されても脆弱化することがな
く、ウエルドナットとして直接相手材に溶接することが
できる。Next, in the second invention, for example, generally commercially available low carbon boron steel is used as the material. This material is C.O. 18-0.23%, SiO. 15-0.
35%, MnO. 95-1.25%, PO. 03
% or less, 80.03% or less, CrO. 20% or less, n
o. It is a steel material having a chemical composition of ooos% or more and the balance being Fe. Such low carbon boron steel is subjected to cold heading and thread cutting of a nut by a conventional method, and is then subjected to a quenching and tempering treatment. The quenching is performed by a water quenching method or an oil quenching method, and then a tempering treatment is performed at 400°C or less. As the tempering temperature increases, the elongation and impact value increase, but the tensile strength and yield strength decrease, so it is preferable to temper at about 100 to 300°C. In this way, nuts obtained by quenching and tempering low carbon boron steel have a tensile strength of 120 to 150 kg/+nm2, and do not become brittle even when heated by welding heat, and can be directly attached to the mating material as a weld nut. Can be welded.
以上に説明したように、本発明により製造された高強度
ウエルドナット（１）は、第１図に示されるように直接
相手材（２）へ溶接しても高強度を保つことができ、第
２図に示された従来のもののように複雑な構造とする必
要がない。As explained above, the high-strength weld nut (1) manufactured according to the present invention can maintain high strength even when directly welded to the mating material (2) as shown in FIG. There is no need for a complicated structure like the conventional one shown in FIG.
（発明の効果）
本発明は以上に説明したように、直接溶接を行っても強
度の劣化のない高強度ウエルドナットを提供することが
できるものであるから、従来の問題点を一掃した高強度
ウエルドナットの製造方法として、業界に寄与するとこ
ろは極めて大きいものである。(Effects of the Invention) As explained above, the present invention is capable of providing a high-strength weld nut that does not deteriorate in strength even when directly welded, so it is possible to provide a high-strength weld nut that does not deteriorate in strength even when directly welded. The contribution to the industry as a weld nut manufacturing method is extremely large.
第１図は本発明方法により製造された高強度ウエルドナ
ットの斜視図、第２図は従来の高強度ウエルドナットの
一部切欠斜視図である。
第１図FIG. 1 is a perspective view of a high-strength weld nut manufactured by the method of the present invention, and FIG. 2 is a partially cutaway perspective view of a conventional high-strength weld nut. Figure 1
Claims (1)
ーインク処理を施すことを特徴とする高強度ウエルドナ
ットの製造方法。 ２、低カーボンボロン鋼によりナットを圧造し、ねじ切
り後、焼入れ焼戻し処理を施すことを特徴とする高強度
ウエルドナットの製造方法。[Claims] 1. A method for producing a high-strength welded nut, which comprises forging the nut using a non-tempered material, threading it, and then applying blue ink treatment. 2. A method for manufacturing a high-strength weld nut, which comprises forging the nut with low carbon boron steel, threading it, and then subjecting it to quenching and tempering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1112478A JP2656831B2 (en) | 1989-05-01 | 1989-05-01 | Manufacturing method of high strength weld nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1112478A JP2656831B2 (en) | 1989-05-01 | 1989-05-01 | Manufacturing method of high strength weld nut |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02290922A true JPH02290922A (en) | 1990-11-30 |
| JP2656831B2 JP2656831B2 (en) | 1997-09-24 |
Family
ID=14587640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1112478A Expired - Lifetime JP2656831B2 (en) | 1989-05-01 | 1989-05-01 | Manufacturing method of high strength weld nut |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2656831B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001079567A1 (en) * | 2000-04-07 | 2001-10-25 | Kabushiki Kaisha Kobe Seiko Sho | Method for manufacturing high strength bolt excellent in resistance to delayed fracture and to relaxation |
| WO2011055485A1 (en) * | 2009-11-06 | 2011-05-12 | 株式会社吉野工作所 | Thin joint member producing method and pair of thin joint members |
| JP2012047212A (en) * | 2010-08-25 | 2012-03-08 | Yoshino Kosakusho:Kk | Thin wall metal joint |
| CN103757181A (en) * | 2013-11-26 | 2014-04-30 | 常熟市福熙机械零部件制造有限公司 | High-strength nut heat treatment technology |
| US9375800B2 (en) | 2007-08-11 | 2016-06-28 | Honda Motor Co., Ltd. | Sealed weld element for attachment to a vehicle component and method |
| WO2018094308A1 (en) * | 2016-11-21 | 2018-05-24 | Illinois Tool Works Inc. | Weldable nut plate |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5441982A (en) * | 1977-09-09 | 1979-04-03 | Yoshino Kogyosho Co Ltd | Decorative body made of clear hard synthetic resin |
| JPS5636203A (en) * | 1979-08-31 | 1981-04-09 | Toshiba Corp | Oscillating circuit |
| JPS63121620A (en) * | 1986-11-10 | 1988-05-25 | Kobe Steel Ltd | Production of non-heattreated male screw parts for joining |
-
1989
- 1989-05-01 JP JP1112478A patent/JP2656831B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5441982A (en) * | 1977-09-09 | 1979-04-03 | Yoshino Kogyosho Co Ltd | Decorative body made of clear hard synthetic resin |
| JPS5636203A (en) * | 1979-08-31 | 1981-04-09 | Toshiba Corp | Oscillating circuit |
| JPS63121620A (en) * | 1986-11-10 | 1988-05-25 | Kobe Steel Ltd | Production of non-heattreated male screw parts for joining |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001079567A1 (en) * | 2000-04-07 | 2001-10-25 | Kabushiki Kaisha Kobe Seiko Sho | Method for manufacturing high strength bolt excellent in resistance to delayed fracture and to relaxation |
| US6605166B2 (en) | 2000-04-07 | 2003-08-12 | Kabushiki Kaisha Kobe Seiko Sho | Method for manufacturing high strength bolt excellent in resistance to delayed fracture and to relaxation |
| US9375800B2 (en) | 2007-08-11 | 2016-06-28 | Honda Motor Co., Ltd. | Sealed weld element for attachment to a vehicle component and method |
| WO2011055485A1 (en) * | 2009-11-06 | 2011-05-12 | 株式会社吉野工作所 | Thin joint member producing method and pair of thin joint members |
| JP5773880B2 (en) * | 2009-11-06 | 2015-09-02 | 株式会社吉野工作所 | Manufacturing method of thin joint member |
| US9303668B2 (en) | 2009-11-06 | 2016-04-05 | Kabushiki Kaisha Yoshino Kosakujo | Thin joint member producing method and pair of thin joint members |
| JP2012047212A (en) * | 2010-08-25 | 2012-03-08 | Yoshino Kosakusho:Kk | Thin wall metal joint |
| CN103757181A (en) * | 2013-11-26 | 2014-04-30 | 常熟市福熙机械零部件制造有限公司 | High-strength nut heat treatment technology |
| WO2018094308A1 (en) * | 2016-11-21 | 2018-05-24 | Illinois Tool Works Inc. | Weldable nut plate |
| US11384786B2 (en) | 2016-11-21 | 2022-07-12 | Illinois Tool Works Inc. | Weldable nut plate |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2656831B2 (en) | 1997-09-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| EXPY | Cancellation because of completion of term |