JPH0439580U - - Google Patents
Info
- Publication number
- JPH0439580U JPH0439580U JP7925390U JP7925390U JPH0439580U JP H0439580 U JPH0439580 U JP H0439580U JP 7925390 U JP7925390 U JP 7925390U JP 7925390 U JP7925390 U JP 7925390U JP H0439580 U JPH0439580 U JP H0439580U
- Authority
- JP
- Japan
- Prior art keywords
- spot weld
- probe
- residual stress
- measures
- center position
- 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
- 238000003466 welding Methods 0.000 claims description 8
- 239000000523 sample Substances 0.000 claims description 4
- 230000005330 Barkhausen effect Effects 0.000 claims 1
- 239000000696 magnetic material Substances 0.000 claims 1
- 230000005415 magnetization Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
Description
第１図〜第３図はこの考案の一実施例を示すも
ので、第１図は良否判定器の縦断側面図、第２図
はスポツト溶接部の溶接状態と残留応力の関係を
示す説明図、第３図ａ，ｂは溶接良の残留応力と
溶接不良の残留応力を示す説明図、第４図は自動
車のクオータパネルアウタのスポツト溶接状態を
示す斜視図、第５図ａ，ｂは溶接良と溶接不良の
状態の断面図である。
５……スポツト溶接部、１０……残留応力計、
１３……プローブ、１７……検出子、１９……位
置決め部材。
Figures 1 to 3 show an embodiment of this invention, with Figure 1 being a longitudinal cross-sectional side view of the quality determiner, and Figure 2 being an explanatory diagram showing the relationship between the welding condition of a spot weld and residual stress. , Fig. 3 a and b are explanatory diagrams showing the residual stress of good welding and residual stress of poor welding, Fig. 4 is a perspective view showing the spot welding state of the outer quarter panel of an automobile, and Fig. 5 a and b are welding. FIG. 3 is a cross-sectional view of a good welding state and a welding defect state. 5...Spot welded part, 10...Residual stress meter,
13...Probe, 17...Detector, 19...Positioning member.
Claims (1)
、磁性体の磁化を変化させる際に生じるバルクハ
ウゼン効果雑音によつて被検査物の残留応力を測
定する残留応力計のプローブに、スポツト溶接部
の中心位置に当接させることにより、前記プロー
ブの検出子をスポツト溶接部の中心位置から径方
向に所定距離だけ偏倚させて位置決めする位置決
め部材を設け、スポツト溶接部の周辺の引張り応
力および圧縮応力を測定し、スポツト溶接部の溶
接状態を検査することを特徴とするスポツト溶接
部の良否判定器。 A spot weld is installed on the probe of a residual stress meter that measures the residual stress of a test object using the Barkhausen effect noise generated when a probe with a detector comes into contact with the test object and changes the magnetization of a magnetic material. A positioning member is provided which positions the detector of the probe by a predetermined distance in the radial direction from the center position of the spot weld by bringing it into contact with the center position of the spot weld, thereby reducing tensile stress and compressive stress around the spot weld. A quality determination device for a spot weld, characterized in that it measures the welding condition of the spot weld.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7925390U JPH0439580U (en) | 1990-07-27 | 1990-07-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7925390U JPH0439580U (en) | 1990-07-27 | 1990-07-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0439580U true JPH0439580U (en) | 1992-04-03 |
Family
ID=31623247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7925390U Pending JPH0439580U (en) | 1990-07-27 | 1990-07-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0439580U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006300879A (en) * | 2005-04-25 | 2006-11-02 | Magnegraph:Kk | Device for measuring object |
| JP2009133786A (en) * | 2007-11-30 | 2009-06-18 | Nippon Steel Corp | Nondestructive inspection device of weld zone, and nondestructive inspection method of weld zone |
| KR101143400B1 (en) * | 2004-12-21 | 2012-05-22 | 재단법인 포항산업과학연구원 | Jig with Level Regulation Function |
-
1990
- 1990-07-27 JP JP7925390U patent/JPH0439580U/ja active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101143400B1 (en) * | 2004-12-21 | 2012-05-22 | 재단법인 포항산업과학연구원 | Jig with Level Regulation Function |
| JP2006300879A (en) * | 2005-04-25 | 2006-11-02 | Magnegraph:Kk | Device for measuring object |
| JP4712428B2 (en) * | 2005-04-25 | 2011-06-29 | 日本高圧電気株式会社 | Device for measuring objects |
| JP2009133786A (en) * | 2007-11-30 | 2009-06-18 | Nippon Steel Corp | Nondestructive inspection device of weld zone, and nondestructive inspection method of weld zone |
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