CN112304202A - Laser spot welding nugget geometric parameter measuring device and using method thereof - Google Patents
Laser spot welding nugget geometric parameter measuring device and using method thereof Download PDFInfo
- Publication number
- CN112304202A CN112304202A CN202011004205.9A CN202011004205A CN112304202A CN 112304202 A CN112304202 A CN 112304202A CN 202011004205 A CN202011004205 A CN 202011004205A CN 112304202 A CN112304202 A CN 112304202A
- Authority
- CN
- China
- Prior art keywords
- weld
- straight line
- welding seam
- depth
- handle
- 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
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
- G01B7/06—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness
- G01B7/10—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness using magnetic means, e.g. by measuring change of reluctance
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/26—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring depth
Abstract
The invention relates to the field of laser beam processing, in particular to a device for measuring geometric parameters of a laser spot welding nugget and a using method thereof. The utility model provides a laser spot welding nugget geometric parameters measuring device, includes magnetism sensor (1), characterized by: the magnetic force measuring device is characterized by further comprising two fixing plates (2), bearings (3), springs (4), ejector pins (5), a handle (6) and angle sensors (7), wherein the number of the fixing plates (2) is two, the fixing plates (2) are arc-shaped, two groups of magnetic force measuring sensors (1) are respectively mounted on the same end face of each fixing plate (2), each group of magnetic force measuring sensors (1) are respectively arranged on the upper portion and the lower portion of the end face of each fixing plate (2), and the two fixing plates (2) are arranged on the same arc and are connected with the handle (6) through the bearings (3); the outer end of the spring (4) is connected with the thimble (5), and the inner end of the spring (4) is fixed in the middle of the handle (6). The invention has the advantages of nondestructive detection and high efficiency.
Description
Technical Field
The invention relates to the field of laser beam processing, in particular to a device for measuring geometric parameters of a laser spot welding nugget and a using method thereof.
Background
When the welding quality of laser spot welding is evaluated, geometric structure parameters such as weld penetration (depth from the surface of basic metal to the weld penetration), weld width (width of the edge of the penetration of the basic metal), weld height (height from the upper surface of the weld to the surface of the basic metal) and the like need to be accurately measured. In the laser spot welding process, if the weld penetration is insufficient, the weld bead is narrow and has large surplus height, which easily causes the problems of incomplete penetration, slag inclusion, welding beading, cold cracks and the like. The weld penetration is large, the weld bead width is large, and the defects of burning through, undercut, tungsten inclusion, air holes, thermal cracks and the like are easily caused. Under the influence of these defects, the weld of the welded member may generate stress concentration, the cross-sectional area of the weld is reduced, the load-bearing capacity is reduced, cracks are caused, and the fatigue strength of the weld is reduced, thereby causing cracking of the welded member, eventually leading to brittle fracture. These problems present a significant safety hazard to the use of welded components. Therefore, the quality of the welded component is not only greatly influenced by the use safety of the welded component, but also causes great hidden danger to the safety of human bodies, and insufficient penetration or incomplete penetration is the most dangerous factor causing the failure of the welded structure. In order to prevent accidents caused by welding quality problems, reduce economic loss caused by failure of a welding joint and ensure normal operation of a welded component, measurement of geometric structural parameters of a weld nugget (the weld nugget for short) is urgent and important, and the method has great engineering practical significance.
The direct measurement method for the geometric structure parameters of the laser spot welding nugget mainly comprises a destructive metallographic measurement method and an ultrasonic measurement method. The metallographic measurement method is to cut the workpiece at the position of the weld joint to be measured by mechanical means such as linear cutting and the like, and directly measure various structural parameters such as the penetration and the welding width of a weld nugget at the cut-off position by using a vernier caliper after corrosion. Although the method for measuring the penetration depth in multiple positions can accurately measure the size of the penetration depth, the method needs to cut the welding seam to leak out of the end face, belongs to a destructive measuring method, and the measured workpiece loses use value. Moreover, since the workpiece needs to be cleaned with dilute nitric acid, the material is easily corroded. In addition, the measuring method has extremely low detection efficiency, and the time consumption is high and the working strength is high if the workpiece needs to be measured manually and repeatedly to achieve high measuring precision. Therefore, the method can only be used as a sampling test type measuring method, has large potential risks, and cannot carry out batch, nondestructive and efficient detection.
Ultrasonic detection is one of five conventional nondestructive detection methods, has the characteristics of high detection sensitivity, accurate defect positioning and the like, and is firstly introduced into the measurement of the geometric dimension of a laser spot welding seam. The method for measuring weld penetration by using ultrasonic waves is limited by sensitivity, blind areas and resolution, and a reflected echo signal which can represent the penetration is difficult to accurately extract. Even if effective echo signals can be distinguished, the interference of other reflected echoes easily causes overlarge measurement result errors, and even wrong fusion depth measurement results. In addition, the ultrasonic method can only measure the penetration of the weld joint, cannot acquire other geometric structure parameters of the weld nugget at one time, and has low detection efficiency.
Disclosure of Invention
The invention discloses a laser spot welding nugget geometric parameter measuring device and a using method thereof, and aims to overcome the defects of the prior art and provide a weld joint measuring method with nondestructive detection and high efficiency.
The invention achieves the purpose by the following technical scheme:
the utility model provides a laser spot welding nugget geometric parameters measuring device, includes survey magnetic sensor, characterized by: also comprises a fixing plate, a bearing, a spring, a thimble and a handle,
the number of the magnetism measuring sensors is eight, the eight magnetism measuring sensors are averagely divided into four groups, and each group comprises two magnetism measuring sensors;
the two fixed plates are arc-shaped, a group of magnetic measurement sensors and an angle sensor are respectively arranged on two sides of the same end face of each fixed plate, each group of magnetic measurement sensors are respectively arranged on the upper part and the lower part of the end face of each fixed plate, the two fixed plates are arranged on the same arc and are connected with the handle through bearings, and the two fixed plates freely rotate in the same plane;
the outer end of the spring is connected with the ejector pin, the inner end of the spring is fixed in the middle of the handle, and during measurement, the attachment degree of the four sets of magnetic sensors and welding lines can be automatically adjusted through the spring and the ejector pin in the middle of the handle, so that the measurement sensitivity is improved.
The laser spot welding nugget geometric parameter measuring device is characterized in that: the precision of the magnetic sensor is not lower than 0.1nT, and the central angle corresponding to the fixed plate is 30-45 degrees.
The use method of the laser spot welding nugget geometric parameter measuring device is characterized in that: the method is implemented in sequence according to the following steps:
a. holding a grip in the middle of the device, aligning the thimble to the center of the welding seam and propping the thimble against the center of the welding seam so that the two fixing plates cross over the welding seam;
b. adjusting the two fixing plates according to the size of the weld joint to enable each group of magnetic sensors on the fixing plates to be in contact with the surface of the weld joint;
c. lightly pressing the handle, wherein the handle pushes the thimble through the spring, so that each group of the magnetic measurement sensors are automatically adjusted to be tightly attached to the welding line;
d. measuring the weld depth of each point at the current position of the weld by four groups of two magnetism measuring sensors distributed up and downDegree, each is denoted as d1，d2，d3And d4Measuring a welding seam inclination angle alpha through an angle sensor;
e. holding the upper end of the handle, rotating along the edge of the welding seam, measuring the depth of the welding seam at other positions of the welding seam, and respectively recording the depth as d1'、d2'、d3' and d4'after one rotation, a weld depth set of the whole weld can be obtained, and is defined as D';
f. fitting the three-dimensional solid geometry of the weld nugget by using a least square method by using a weld depth set D',
order: the fitted three-dimensional solid geometry curve is a quadratic function y = f (x) = ax2+ bx + c, let the weld depth d measured at a time1、d2、d3And d4The corresponding coordinates are respectively d1(x1,y1)、d2(x2,y2)、d3(x3,y3) And d4(x4,y4) And n times of measurement, the method can obtain the following result by a least square method:
substituted into the measuring point d1、d2、d3And d4And solving the coefficients a, b and c to obtain a fitting curve y = f (x);
g. establishing the relation between the depth of the weld joint and the geometric parameters according to the definitions of the geometric parameters of the weld nugget, such as the penetration, the fusion width, the welding width and the like, and calculating the geometric parameters:
order: h is1And h2For penetration, b1And b2The width of the weld is measured, d is the height of the weld, the direction perpendicular to the surface of the weld is determined as the direction of the y axis, and the length of the weld is measured along the weldThe surface vertical to the y-axis direction is the x-axis direction, a rectangular coordinate system is established, a point O is the origin of coordinates, alpha is the welding seam inclination angle measured by the angle sensor, and the coordinates of two intersection points of the fitting curve y = f (x) and the x-axis are respectively A (x = f) (x)10) and B (x)20), in Δ ABC:
，
in the rectangular coordinate system xOy, the slope of the straight line BC is tan α, the straight line DE is parallel to the straight line BC, the slope is tan α, tangential point coordinates D (x, y) are obtained from the fitted curve equation y = f (x) and the slope of the straight line DE, and then the equation of the straight line DE is y = f by the point-slope method1(x) To find a point B (x)20) the distance from the straight line DE is the penetration h2；
Similarly, in the rectangular coordinate system xOy, the slope of the straight line AC is tan β, the straight line FG is parallel to the straight line AC, and the slope is also tan β, the tangent point coordinate F (x, y) is obtained by fitting the curve equation y = F (x) and the slope of the straight line FG, and then the equation y = F of the straight line FG is obtained by the point-slope method2(x) To find a point A (x)10) the distance from the straight line FG is the fusion depth h1。
When the method is used for measurement, firstly, a measurement array formed by high-precision differential magnetism measurement sensors is used for collecting weak magnetic field signals of different positions of a welding seam, and the distance between the two differential magnetism measurement sensors distributed above and below is used as a ruler for calculating the depth of the welding seam at a certain position of the welding seam. Then, the handle is held to rotate the device for one circle, so that the weld depth of different positions of the whole weld can be measured. And then fitting the three-dimensional geometric shape of the weld nugget by using the measured depth value of the weld joint. Then, a triangular geometric relation of the depth of the weld joint, the penetration depth and the width of the weld joint is established according to basic geometry, and the penetration depth, the height and the width of the weld joint are calculated.
The invention innovatively introduces a magnetic method into the measurement of the geometric parameters of the laser spot welding nugget. In order to adapt to the measurement of laser spot welding of different sizes, a magnetic measuring sensor device capable of being automatically adjusted is designed. The device comprises 8 high-precision magnetic sensors, a semicircular mechanical mechanism for mounting the magnetic sensors, a spring and a thimble. In order to improve the measurement efficiency, the three-dimensional geometric shape of the weld nugget is fitted after the welding depths of different positions of the weld joint are obtained. And then, respectively calculating the penetration, the fusion width and the welding height of the weld nugget of the weld joint by utilizing the geometric relation. In addition, the method does not need polishing, excitation and a coupling agent, has simple and convenient measurement process, and can measure a plurality of geometric parameters of the weld nugget at one time.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 shows a mathematical model for calculating weld nugget structural parameters.
Detailed Description
The invention is further illustrated by the following specific examples.
Example 1
A laser spot welding nugget geometric parameter measuring device comprises a magnetism measuring sensor 1, a fixing plate 2, a bearing 3, a spring 4, a thimble 5 and a handle 6, and as shown in figure 1, the specific structure is as follows:
the number of the magnetism measuring sensors 1 is eight, the eight magnetism measuring sensors 1 are averagely divided into four groups, and each group comprises two magnetism measuring sensors 1;
the two fixed plates 2 are in an arc shape, a group of magnetism measuring sensors 1 and an angle sensor 7 are respectively installed on two sides of the same end face of each fixed plate 2, each group of magnetism measuring sensors 1 are respectively arranged on the upper portion and the lower portion of the end face of each fixed plate 2, the two fixed plates 2 are arranged on the same arc and are connected with a handle 6 through bearings 3, and the two fixed plates 2 freely rotate in the same plane;
the outer end of the spring 4 is connected with the thimble 5, the inner end of the spring 4 is fixed in the middle of the handle 6, and during measurement, the attachment degree of the four sets of the magnetism measuring sensors 1 and a welding line can be automatically adjusted through the spring 4 and the thimble 5 in the middle of the handle 6, so that the measurement sensitivity is improved.
In this embodiment: the precision of the magnetic sensor 1 is not lower than 0.1 nT;
the central angle corresponding to the fixed plate 2 is 30-45 degrees, and the central angle corresponding to the fixed plate 2 is 30 degrees in this embodiment.
When the embodiment is used: the method is implemented in sequence according to the following steps:
a. holding a handle 6 in the middle of the device, aligning a thimble 5 and propping the center of a welding seam, enabling two fixing plates 2 to cross over the welding seam, propping the top of the welding seam through the thimble 5, and rotating the handle 6 to freely rotate in the same plane;
b. adjusting the two fixing plates 2 according to the size of the weld joint, so that each group of the magnetic sensors 2 on the fixing plates 2 are in contact with the surface of the weld joint;
c. lightly pressing the handle 6, wherein the handle 6 pushes the thimble 5 through the spring 4, so that each group of the magnetic sensors 1 are automatically adjusted to be tightly attached to the welding line;
d. measuring the depth of the weld at each point of the current position of the weld by four groups of two magnetism measuring sensors 1 distributed up and down, and respectively recording the depth as d1，d2，d3And d4Measuring a welding seam inclination angle alpha through an angle sensor 7;
e. holding the upper end of the handle 6, rotating along the edge of the weld joint, measuring the depth of the weld joint at other positions of the weld joint, and respectively recording the depth as d1'、d2'、d3' and d4'after one rotation, a weld depth set of the whole weld can be obtained, and is defined as D';
f. fitting the three-dimensional solid geometry of the weld nugget by using a least square method by using a weld depth set D', wherein the three-dimensional solid geometry is as follows:
order: the fitted three-dimensional solid geometry curve is a quadratic function y = f (x) = ax2+ bx + c, let the weld depth d measured at a time1、d2、d3And d4The corresponding coordinates are respectively d1(x1,y1)、d2(x2,y2)、d3(x3,y3) And d4(x4,y4) And n times of measurement, the method can obtain the following result by a least square method:
substituted into the measuring point d1、d2、d3And d4And solving the coefficients a, b and c to obtain a fitting curve y = f (x);
g. establishing the relation between the depth of the weld and the geometric parameters according to the definitions of the geometric parameters of the weld nuggets, such as the penetration, the fusion width, the welding width and the like, and calculating the geometric parameters, wherein the geometric parameters are as follows:
order: h is1And h2For penetration, b1And b2And d is the weld width, the direction perpendicular to the surface of the weld is determined as the y-axis direction, a rectangular coordinate system is established by taking the direction perpendicular to the y-axis direction along the surface of the weld as the x-axis direction, the point O is the origin of coordinates, and alpha is the weld dip angle measured by an angle sensor. As shown in fig. 2, penetration h1Is | CF |, h2Is | CD |; melt width b1Is | AC |, b2Is | CB |; the welding height d is | OC |;
let the coordinates of two intersection points of the fitted curve y = f (x) and the x axis be A (x)10) and B (x)20), in Δ ABC:
，
in the rectangular coordinate system xOy, the slope of the straight line BC is tan α, the straight line DE is parallel to the straight line BC, the slope is tan α, tangential point coordinates D (x, y) are obtained from the fitted curve equation y = f (x) and the slope of the straight line DE, and then the equation of the straight line DE is y = f by the point-slope method1(x) To find a point B (x)20) the distance from the straight line DE is the penetration h2。
Similarly, in the rectangular coordinate system xOy, the slope of the straight line AC is tan β, the straight line FG is parallel to the straight line AC, and the slope is also tan β, the tangent point coordinate F (x, y) is obtained by fitting the curve equation y = F (x) and the slope of the straight line FG, and then the equation y = F of the straight line FG is obtained by the point-slope method2(x) To find a point A (x)10) the distance from the straight line FG is the fusion depth h1。
Claims (3)
1. The utility model provides a laser spot welding nugget geometric parameters measuring device, includes magnetism sensor (1), characterized by: also comprises a fixing plate (2), a bearing (3), a spring (4), a thimble (5), a handle (6) and an angle sensor (7),
the number of the magnetism measuring sensors (1) is eight, the eight magnetism measuring sensors (1) are averagely divided into four groups, and each group comprises two magnetism measuring sensors (1);
the two fixed plates (2) are in an arc shape, two sides of the same end face of each fixed plate (2) are respectively provided with a group of magnetism measuring sensors (1) and an angle sensor (7), each group of magnetism measuring sensors (1) are respectively arranged on the upper portion and the lower portion of the end face of the fixed plate (2), the two fixed plates (2) are arranged on the same arc and are connected with the handle (6) through bearings (3), and the two fixed plates (2) freely rotate in the same plane;
the outer end of the spring (4) is connected with the thimble (5), and the inner end of the spring (4) is fixed in the middle of the handle (6).
2. The laser spot welding nugget geometric parameter measuring apparatus according to claim 1, wherein: the precision of the magnetic sensor (1) is not lower than 0.1nT, and the corresponding central angle of the fixed plate (2) is 30-45 degrees.
3. The use method of the laser spot welding nugget geometric parameter measurement device according to claim 1 or 2, characterized by: the method is implemented in sequence according to the following steps:
a. holding a grip (6) in the middle of the device, aligning the thimble (5) and propping the center of the welding seam, and enabling the two fixing plates (2) to cross over the welding seam;
b. adjusting the two fixing plates (2) according to the size of the weld joint, so that each group of magnetic measurement sensors (2) on the fixing plates (2) are in contact with the surface of the weld joint;
c. lightly pressing the handle (6), wherein the handle (6) pushes the thimble (5) through the spring (4), so that each group of the magnetic sensors (1) are automatically adjusted to be tightly attached to the welding line;
d. the depth of the welding seam of each point at the current position of the welding seam is measured by four groups of two magnetism measuring sensors (1) which are distributed up and downAre respectively denoted by d1，d2，d3And d4Measuring the inclination angle alpha of the welding seam through an angle sensor (7);
e. holding the upper end of the handle (6), rotating along the edge of the welding seam, measuring the depth of the welding seam at other positions of the welding seam, and respectively recording the depth as d1'、d2'、d3' and d4'after one rotation, a weld depth set of the whole weld can be obtained, and is defined as D';
f. fitting the three-dimensional solid geometry of the weld nugget by using a least square method by using a weld depth set D',
order: the fitted three-dimensional solid geometry curve is a quadratic function y = f (x) = ax2+ bx + c, let the weld depth d measured at a time1、d2、d3And d4The corresponding coordinates are respectively d1(x1,y1)、d2(x2,y2)、d3(x3,y3) And d4(x4,y4) And measuring n times in total, wherein n is a positive integer not less than 3, and obtaining the result by a least square method:
substituted into the measuring point d1、d2、d3And d4And solving the coefficients a, b and c to obtain a fitting curve y = f (x);
g. establishing the relation between the depth of the weld and the geometric parameters according to the definitions of the geometric parameters of the penetration, the fusion width and the welding width of the weld nuggets, and calculating the geometric parameters:
order: h is1And h2For penetration, b1And b2Is the fusion width, d is the height of the welding seam and is perpendicular to the welding seamThe surface direction is the y-axis direction, the direction perpendicular to the y-axis direction along the surface of the welding seam is taken as the x-axis direction, a rectangular coordinate system is established, a point O is the origin of coordinates, alpha is the welding seam inclination angle measured by the angle sensor, and the coordinates of two intersection points of a fitting curve y = f (x) and the x-axis are respectively A (x is x)10) and B (x)20), in Δ ABC:
，
in the rectangular coordinate system xOy, the slope of the straight line BC is tan α, the straight line DE is parallel to the straight line BC, the slope is tan α, tangential point coordinates D (x, y) are obtained from the fitted curve equation y = f (x) and the slope of the straight line DE, and then the equation of the straight line DE is y = f by the point-slope method1(x) To find a point B (x)20) the distance from the straight line DE is the penetration h2；
Similarly, in the rectangular coordinate system xOy, the slope of the straight line AC is tan β, the straight line FG is parallel to the straight line AC, and the slope is also tan β, the tangent point coordinate F (x, y) is obtained by fitting the curve equation y = F (x) and the slope of the straight line FG, and then the equation y = F of the straight line FG is obtained by the point-slope method2(x) To find a point A (x)10) the distance from the straight line FG is the fusion depth h1。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010432849 | 2020-05-20 | ||
| CN2020104328491 | 2020-05-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112304202A true CN112304202A (en) | 2021-02-02 |
| CN112304202B CN112304202B (en) | 2022-09-23 |
Family
ID=74489149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011004205.9A Active CN112304202B (en) | 2020-05-20 | 2020-09-22 | Laser spot welding nugget geometric parameter measuring device and using method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112304202B (en) |
Citations (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61154773A (en) * | 1984-12-27 | 1986-07-14 | Toshiba Corp | Weld line detector |
| US5544207A (en) * | 1993-10-08 | 1996-08-06 | Japan Atomic Energy Research Institute | Apparatus for measuring the thickness of the overlay clad in a pressure vessel of a nuclear reactor |
| JP2002153989A (en) * | 2000-11-22 | 2002-05-28 | Tokyo Gas Co Ltd | Method for detecting weld line of conduit tube |
| US20040245315A1 (en) * | 2003-06-04 | 2004-12-09 | Maev Roman Gr. | Method and apparatus for assessing the quality of spot welds |
| CN1678422A (en) * | 2002-09-06 | 2005-10-05 | 弗罗纽斯国际有限公司 | Method for monitoring the quality of spot welding |
| JP2005345307A (en) * | 2004-06-03 | 2005-12-15 | Nippon Steel Corp | Sectional shape measuring method for spot weld zone |
| JP2007057245A (en) * | 2005-08-22 | 2007-03-08 | Nok Corp | Device for inspecting melt-in depth of welded part |
| US20080072674A1 (en) * | 2005-11-07 | 2008-03-27 | Ume Ifeanyi C | Ultrasound systems and method for measuring weld penetration depth in real time and off line |
| CN102825364A (en) * | 2012-09-12 | 2012-12-19 | 湘潭大学 | Magnetic-control arc sensor device applied in seam tracking |
| JP2013180332A (en) * | 2012-03-02 | 2013-09-12 | Satoshi Shimamoto | Method and apparatus for evaluating spot welding fixing strength |
| CN104501750A (en) * | 2014-12-16 | 2015-04-08 | 中铁宝桥集团有限公司 | Ultrasonic phased array measuring U rib welding line fusion depth method |
| CN104930965A (en) * | 2015-06-12 | 2015-09-23 | 宁波市鄞州磁泰电子科技有限公司 | Weld joint penetration depth detection method |
| CN105081545A (en) * | 2015-09-15 | 2015-11-25 | 上海交通大学 | Welding nuclear deviation control device and method for resistance spot welding |
| CN105138797A (en) * | 2015-09-17 | 2015-12-09 | 西安交通大学 | Simulation method for vertical pipeline weld pool and weld joint |
| CN206037907U (en) * | 2016-09-28 | 2017-03-22 | 上海赛科利汽车模具技术应用有限公司 | Weld dark measuring device of nuclear indentation |
| CN106643465A (en) * | 2016-12-28 | 2017-05-10 | 宁波市鄞州磁泰电子科技有限公司 | Weld joint penetration depth detection method |
| CN107552994A (en) * | 2017-09-26 | 2018-01-09 | 宁波市鄞州磁泰电子科技有限公司 | A kind of weld penetration, molten wide and the high detection method of weldering |
| CN107649804A (en) * | 2017-10-17 | 2018-02-02 | 华中科技大学鄂州工业技术研究院 | A kind of increasing material manufacturing fusion penetration on-line checking and control system |
| CN207923782U (en) * | 2017-12-07 | 2018-09-28 | 上海超具机器人科技有限公司 | Eddy current testing device for automobile body welding |
| US20190041196A1 (en) * | 2017-08-01 | 2019-02-07 | Precitec Gmbh & Co. Kg | Method for Optically Measuring the Weld Penetration Depth |
| CN109387563A (en) * | 2017-08-11 | 2019-02-26 | 上汽通用五菱汽车股份有限公司 | A method of establishing quality of welding spot examination criteria |
| DE102018008331A1 (en) * | 2018-10-22 | 2019-03-28 | Daimler Ag | Method for the qualitative and / or quantitative quality monitoring of a welding process, and device for carrying out such a method |
-
2020
- 2020-09-22 CN CN202011004205.9A patent/CN112304202B/en active Active
Patent Citations (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61154773A (en) * | 1984-12-27 | 1986-07-14 | Toshiba Corp | Weld line detector |
| US5544207A (en) * | 1993-10-08 | 1996-08-06 | Japan Atomic Energy Research Institute | Apparatus for measuring the thickness of the overlay clad in a pressure vessel of a nuclear reactor |
| JP2002153989A (en) * | 2000-11-22 | 2002-05-28 | Tokyo Gas Co Ltd | Method for detecting weld line of conduit tube |
| CN1678422A (en) * | 2002-09-06 | 2005-10-05 | 弗罗纽斯国际有限公司 | Method for monitoring the quality of spot welding |
| US20040245315A1 (en) * | 2003-06-04 | 2004-12-09 | Maev Roman Gr. | Method and apparatus for assessing the quality of spot welds |
| JP2005345307A (en) * | 2004-06-03 | 2005-12-15 | Nippon Steel Corp | Sectional shape measuring method for spot weld zone |
| JP2007057245A (en) * | 2005-08-22 | 2007-03-08 | Nok Corp | Device for inspecting melt-in depth of welded part |
| US20080072674A1 (en) * | 2005-11-07 | 2008-03-27 | Ume Ifeanyi C | Ultrasound systems and method for measuring weld penetration depth in real time and off line |
| JP2013180332A (en) * | 2012-03-02 | 2013-09-12 | Satoshi Shimamoto | Method and apparatus for evaluating spot welding fixing strength |
| CN102825364A (en) * | 2012-09-12 | 2012-12-19 | 湘潭大学 | Magnetic-control arc sensor device applied in seam tracking |
| CN104501750A (en) * | 2014-12-16 | 2015-04-08 | 中铁宝桥集团有限公司 | Ultrasonic phased array measuring U rib welding line fusion depth method |
| CN104930965A (en) * | 2015-06-12 | 2015-09-23 | 宁波市鄞州磁泰电子科技有限公司 | Weld joint penetration depth detection method |
| CN105081545A (en) * | 2015-09-15 | 2015-11-25 | 上海交通大学 | Welding nuclear deviation control device and method for resistance spot welding |
| CN105138797A (en) * | 2015-09-17 | 2015-12-09 | 西安交通大学 | Simulation method for vertical pipeline weld pool and weld joint |
| CN206037907U (en) * | 2016-09-28 | 2017-03-22 | 上海赛科利汽车模具技术应用有限公司 | Weld dark measuring device of nuclear indentation |
| CN106643465A (en) * | 2016-12-28 | 2017-05-10 | 宁波市鄞州磁泰电子科技有限公司 | Weld joint penetration depth detection method |
| US20190041196A1 (en) * | 2017-08-01 | 2019-02-07 | Precitec Gmbh & Co. Kg | Method for Optically Measuring the Weld Penetration Depth |
| CN109387563A (en) * | 2017-08-11 | 2019-02-26 | 上汽通用五菱汽车股份有限公司 | A method of establishing quality of welding spot examination criteria |
| CN107552994A (en) * | 2017-09-26 | 2018-01-09 | 宁波市鄞州磁泰电子科技有限公司 | A kind of weld penetration, molten wide and the high detection method of weldering |
| CN107649804A (en) * | 2017-10-17 | 2018-02-02 | 华中科技大学鄂州工业技术研究院 | A kind of increasing material manufacturing fusion penetration on-line checking and control system |
| CN207923782U (en) * | 2017-12-07 | 2018-09-28 | 上海超具机器人科技有限公司 | Eddy current testing device for automobile body welding |
| DE102018008331A1 (en) * | 2018-10-22 | 2019-03-28 | Daimler Ag | Method for the qualitative and / or quantitative quality monitoring of a welding process, and device for carrying out such a method |
Non-Patent Citations (2)
| Title |
|---|
| WU, TSUN-YEN等: "Prediction and experimental validation of penetration depth of butt welds in thin plates using superimposed laser sources", 《NDT & E INTERNATIONAL》 * |
| 叶结和等: "基于非接触测量的搭接激光焊缝表面质量评估", 《中国激光》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112304202B (en) | 2022-09-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20070140403A1 (en) | Method for inspection and maintenance of an inside of a nuclear power reactor | |
| CN109507301B (en) | Contrast reflector test block and method for determining weld defects of thick plate | |
| JP2002048773A (en) | Calibration test piece for ultrasonic inspection of rail welded part | |
| CN104730145A (en) | Method for accurately positioning defects of material during ultrasonic detection | |
| CN106840789B (en) | Improved test piece for oblique Y-shaped groove welding crack sensitivity test and manufacturing method thereof | |
| CN113091552A (en) | Accurate fillet weld size measuring tool and method | |
| CN203275376U (en) | Measurement device for zero calibration and K value of axle transverse wave angular sensor | |
| CN112304202B (en) | Laser spot welding nugget geometric parameter measuring device and using method thereof | |
| CN106706759A (en) | Defect evaluation method for weld joints of P92-steel main steam pipeline of ultra-supercritical generating unit | |
| CN100427935C (en) | Fault positioning method in complicate welding structure | |
| US4989338A (en) | V-shaped groove inspecting and working method | |
| CN113138227A (en) | Welding joint combination detection method in high-temperature state | |
| CN111595670B (en) | Processing and testing method for pipeline weld micro-region tensile sample | |
| CN103148814B (en) | Pipe portion liquid dipping automatic ultrasonic wall thickness measuring mechanism and measuring method | |
| CN215572777U (en) | Aircraft skin curved surface normal direction hole position degree detects frock | |
| CN212964775U (en) | Ultrasonic phased array detection reference block for steam turbine rotor girth weld | |
| CN213121736U (en) | Ultrasonic C scanning tool with rapid detection function | |
| Reichert | Pre-and postweld inspection using laser vision | |
| CN112326799A (en) | Method for applying phased array technology to pressure pipeline regular inspection and grading | |
| CN210742196U (en) | Probe for ultrasonic integrated detection of defects of inner hole parts | |
| CN112345641A (en) | Turbine blade ultrasonic detection test block and method | |
| CN112881533A (en) | Ultrasonic detection test block and preparation method thereof | |
| CN213986310U (en) | Turbine blade ultrasonic testing test block | |
| Lamarre et al. | Phased array ultrasonic inspection of friction stir weldments | |
| CN212964784U (en) | Welding seam defect detection auxiliary device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |