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CN103592185A - Measuring method for maximum tensile and shearing force of spot-welded joint of friction stir welding - Google Patents

Measuring method for maximum tensile and shearing force of spot-welded joint of friction stir welding Download PDF

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CN103592185A
CN103592185A CN201310626656.XA CN201310626656A CN103592185A CN 103592185 A CN103592185 A CN 103592185A CN 201310626656 A CN201310626656 A CN 201310626656A CN 103592185 A CN103592185 A CN 103592185A
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tensile
shear
side plate
support side
friction stir
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CN103592185B (en
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刘会杰
赵运强
林喆
陈诗璇
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Harbin Institute of Technology Shenzhen
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Abstract

测量搅拌摩擦点焊接头最大拉剪力的方法,它涉及一种测量搅拌摩擦点焊接头拉剪力的测量方法,以解决传统拉剪测量方法中附加弯矩对搅拌摩擦点焊接头最大拉剪力测量不准确的问题。方法:一、制作卡具:加工上支撑侧板和下支撑侧板,上支撑侧板的长度为拉剪测量试件搭接部分厚度的10~20倍;二、组装拉剪测量试件:拉剪测量试件置于上支撑侧板与下支撑侧板之间,拉剪测量试件的两侧未搭接部分分别放置厚度与被焊板材厚度相等的垫块;三、进行拉剪测量:组装后的拉剪测量试件、卡具及垫块装卡在拉剪试验机上,以0.5~1.5mm/min的加载速度对拉剪测量试件进行拉剪试验,并记录最大拉剪试验载荷。本发明用于测量搅拌摩擦点焊接头拉剪力。

Figure 201310626656

A method for measuring the maximum tensile shear force of friction stir spot welded joints, which relates to a measurement method for measuring the tensile shear force of friction stir spot welded joints, in order to solve the problem of the additional bending moment on the maximum tensile shear force of friction stir spot welded joints in the traditional tensile shear measurement method The problem of inaccurate force measurement. Method: 1. Make the fixture: process the upper support side plate and the lower support side plate. The length of the upper support side plate is 10 to 20 times the thickness of the lapped part of the tension-shear measurement specimen; 2. Assemble the tension-shear measurement specimen: The tensile-shear measurement specimen is placed between the upper support side plate and the lower support side plate, and the non-lapped parts on both sides of the tensile-shear measurement specimen are respectively placed with pads whose thickness is equal to the thickness of the welded plate; 3. Conduct tension-shear measurement : The assembled tensile-shear test piece, jig and spacer are clamped on the tensile-shear testing machine, and the tensile-shear test piece is subjected to a tensile-shear test at a loading speed of 0.5-1.5 mm/min, and the maximum tensile-shear test is recorded load. The invention is used for measuring the tensile shear force of the friction stir spot welding joint.

Figure 201310626656

Description

Measure the method that friction stir spot soldered joint maximum is drawn shearing
Technical field
The present invention relates to a kind of method that friction stir spot soldered joint draws shearing of measuring, be specifically related to a kind of method that friction stir spot soldered joint maximum is drawn shearing of measuring.
Background technology
Friction stir spot welding is a kind of novel spot-welding technology, compares in welding have plurality of advantages during low-melting-point metal with traditional resistor spot welding, high such as welding quality, production cost is low, non-environmental-pollution etc.Evaluating the most important performance index of friction stir spot soldered joint is that maximum is drawn shearing, but the asymmetry due to tack-weld, traditional draw that to cut measuring method be to measure test specimen and apply larger additional bending moment drawing to cut, make its bend-shear-mixed fracture, thereby have the greatest impact, draw the measurement result of shearing.Therefore, traditional drawing cut the maximum that measuring method is difficult to accurately measure friction stir spot soldered joint and drawn shearing.
Summary of the invention
The object of the invention is to draw and cut additional bending moment in measuring method and draw shearing force measurement result to exert an influence to friction stir spot soldered joint maximum for solving tradition, cause measuring inaccurate problem, propose a kind of method that friction stir spot soldered joint maximum is drawn shearing of measuring.
Measuring friction stir spot soldered joint maximum draws the method for shearing to realize by following steps:
Step 1, making jig: processing upper support side plate and lower support side plate, make the equal in length of upper support side plate and lower support side plate, and the length of upper support side plate is to draw to cut to measure 10 times~20 times of test specimen overlap thickness, upper support side plate and lower support side plate be arranged in parallel up and down, its gap equals to draw cuts the thickness of measuring test specimen overlap, and upper support side plate is connected by bolt and nut with lower support side plate;
Step 2, assembling are drawn and are cut measurement test specimen: will draw and cut measurement test specimen and be placed between upper support side plate and lower support side plate, and by bolt and nut, regulate the gap of upper support side plate and lower support side plate, make it just equal to draw and cut the thickness of measuring test specimen overlap, draw cut measure test specimen both sides not overlap place respectively the cushion block that thickness equates with welded sheet metal thickness;
Step 3, draw and cut measurement: drawing after assembling cut and measured test specimen, jig and cushion block and be installed on and draw on shear test machine, with the loading velocity of 0.5mm/min~1.5mm/min, to drawing to cut, measure test specimen and draw scissor test, when drawing to cut to measure after test specimen ruptures completely, stop test, and record maximum and draw scissor test load.
The present invention compared with prior art has following beneficial effect:
One, cut in measuring process drawing, upper support side plate and lower support side plate can be measured test specimen and retrain drawing to cut, guarantee workpiece pure draw under the condition of cutting, occur disrumpent feelings.In addition, the length of upper support side plate and lower support side plate is far longer than to draw cuts the thickness of measuring test specimen overlap, can make like this to draw the impact of cutting the suffered additional bending moment of measurement test specimen to be ignored.Therefore, measurement result can reflect that the maximum of joint draws shearing truly.
Two, in addition, by bolt and nut, regulate the gap of upper support side plate and lower support side plate, can realize different overlap joint thickness and draw to cut and measure drawing of test specimen and cut measurement.
Accompanying drawing explanation
Fig. 1 draws in the step 2 of embodiment one to cut the main cut-open view of measuring after test specimen is assembled with jig;
Fig. 2 draws in the step 2 of embodiment one to cut the stereographic map of measuring after test specimen is assembled with jig.
Embodiment
Embodiment one: in conjunction with Fig. 1 and Fig. 2, present embodiment is described, present embodiment realizes by following steps:
Step 1, making jig: processing upper support side plate 1 and lower support side plate 2, make the equal in length of upper support side plate 1 and lower support side plate 2, and the length L of upper support side plate 1 is to draw to cut to measure 10 times~20 times of test specimen 3 overlap thickness t, upper support side plate 1 be arranged in parallel up and down with lower support side plate 2, its gap equals to draw cuts the thickness of measuring test specimen 3 overlaps, and upper support side plate 1 is connected by bolt and nut 5 with lower support side plate 2;
Step 2, assembling are drawn to cut and are measured test specimen 3: will draw and cut measurement test specimen 3 and be placed between upper support side plate 1 and lower support side plate 2, and by the gap of bolt and nut 5 adjusting upper support side plates 1 and lower support side plate 2, make it just equal to draw and cut the thickness t of measuring test specimen 3 overlaps, draw cut measure test specimen 3 both sides not overlap place respectively the cushion block 4 that thickness equates with welded sheet metal thickness;
Step 3, draw and cut measurement: drawing after assembling cut and measured test specimen 3, jig and cushion block 4 and be installed on and draw on shear test machine, with the loading velocity of 0.5mm/min~1.5mm/min, to drawing to cut, measure test specimen 3 and draw scissor test, when drawing to cut to measure after 6 of examinations are ruptured completely, stop test, and record maximum and draw scissor test load F.
Embodiment two: in conjunction with Fig. 1, present embodiment is described, present embodiment is that the length L of upper support side plate 1 in step 1 is to draw to cut to measure 12 times of test specimen 3 overlap thickness t.Can make like this to draw the impact of cutting measurement test specimen 3 suffered additional bending moments to be ignored.Other step is identical with embodiment one.
Embodiment three: in conjunction with Fig. 1, present embodiment is described, present embodiment is that the length L of upper support side plate 1 in step 1 is to draw to cut to measure 14 times of test specimen 3 overlap thickness t.Can make like this to draw the impact of cutting measurement test specimen 3 suffered additional bending moments to be ignored.Other step is identical with embodiment one.
Embodiment four: in conjunction with Fig. 1, present embodiment is described, present embodiment is that the length L of upper support side plate 1 in step 1 is to draw to cut to measure 16 times of test specimen 3 overlap thickness t.Can make like this to draw the impact of cutting measurement test specimen 3 suffered additional bending moments to be ignored.Other step is identical with embodiment one.
Embodiment five: in conjunction with Fig. 1, present embodiment is described, present embodiment is that the length L of upper support side plate 1 in step 1 is to draw to cut to measure 18 times of test specimen 3 overlap thickness t.Can make like this to draw the impact of cutting measurement test specimen 3 suffered additional bending moments to be ignored.Other step is identical with embodiment one.
Embodiment six: in conjunction with Fig. 1 and Fig. 2, present embodiment is described, present embodiment is that in described step 3, loading velocity is 0.6mm/min.Other step is identical with embodiment one.
Embodiment seven: in conjunction with Fig. 1 and Fig. 2, present embodiment is described, present embodiment is that in described step 3, loading velocity is 0.8mm/min.Other step is identical with embodiment one.
Embodiment eight: in conjunction with Fig. 1 and Fig. 2, present embodiment is described, present embodiment is that in described step 3, loading velocity is 1mm/min.Other step is identical with embodiment one.
Embodiment nine: in conjunction with Fig. 1 and Fig. 2, present embodiment is described, present embodiment is that in described step 3, loading velocity is 1.2mm/min.Other step is identical with embodiment one.
Embodiment ten: in conjunction with Fig. 1 and Fig. 2, present embodiment is described, present embodiment is that in described step 3, loading velocity is 1.4mm/min.Other step is identical with embodiment one.

Claims (10)

1.一种测量搅拌摩擦点焊接头最大拉剪力的方法,其特征在于:所述方法是通过以下步骤实现的:1. A method for measuring the maximum tensile shear force of a friction stir spot welded joint, characterized in that: the method is realized by the following steps: 步骤一、制作卡具:加工上支撑侧板(1)和下支撑侧板(2),使上支撑侧板(1)与下支撑侧板(2)的长度相等,且上支撑侧板(1)的长度(L)为拉剪测量试件(3)搭接部分厚度(t)的10倍~20倍,上支撑侧板(1)与下支撑侧板(2)上下平行设置,其间隙等于拉剪测量试件(3)搭接部分的厚度,上支撑侧板(1)与下支撑侧板(2)通过螺栓螺母(5)连接;Step 1. Making the jig: process the upper support side plate (1) and the lower support side plate (2), so that the lengths of the upper support side plate (1) and the lower support side plate (2) are equal, and the upper support side plate ( The length (L) of 1) is 10 to 20 times the thickness (t) of the overlapping part of the tensile-shear test piece (3), and the upper support side plate (1) and the lower support side plate (2) are arranged parallel to each other up and down, and the The gap is equal to the thickness of the overlapping part of the tension-shear test piece (3), and the upper support side plate (1) and the lower support side plate (2) are connected by bolts and nuts (5); 步骤二、组装拉剪测量试件(3):将拉剪测量试件(3)置于上支撑侧板(1)与下支撑侧板(2)之间,并通过螺栓螺母(5)调节上支撑侧板(1)与下支撑侧板(2)的间隙,使其恰好等于拉剪测量试件(3)搭接部分的厚度(t),在拉剪测量试件(3)的两侧未搭接部分分别放置厚度与被焊板材厚度相等的垫块(4);Step 2. Assemble the tensile-shear measurement specimen (3): place the tensile-shear measurement specimen (3) between the upper support side plate (1) and the lower support side plate (2), and adjust it with the bolts and nuts (5) The gap between the upper support side plate (1) and the lower support side plate (2) is to be exactly equal to the thickness (t) of the overlapped part of the tension-shear measurement specimen (3). Place pads (4) with the same thickness as the plate to be welded on the non-overlapping parts of the sides; 步骤三、进行拉剪测量:将组装后的拉剪测量试件(3)、卡具及垫块(4)装卡在拉剪试验机上,以0.5mm/min~1.5mm/min的加载速度对拉剪测量试件(3)进行拉剪试验,当拉剪测量试(6)件完全断裂后停止试验,并记录最大拉剪试验载荷(F)。Step 3. Carry out tensile and shear measurement: install the assembled tensile and shear measurement specimen (3), fixture and spacer (4) on the tensile and shear testing machine, and load at a loading speed of 0.5mm/min~1.5mm/min Perform a tensile-shear test on the tensile-shear test piece (3), stop the test when the tensile-shear test piece (6) is completely broken, and record the maximum tensile-shear test load (F). 2.根据权利要求1所述测量搅拌摩擦点焊接头最大拉剪力的方法,其特征在于:所述步骤一中上支撑侧板(1)的长度(L)为拉剪测量试件(3)搭接部分厚度(t)的12倍。2. The method for measuring the maximum tensile and shear force of a friction stir spot welded joint according to claim 1, characterized in that: the length (L) of the upper support side plate (1) in the first step is the tensile and shear measurement specimen (3 ) 12 times the thickness (t) of the lap joint. 3.根据权利要求1所述测量搅拌摩擦点焊接头最大拉剪力的方法,其特征在于:所述步骤一中上支撑侧板(1)的长度(L)为拉剪测量试件(3)搭接部分厚度(t)的14倍。3. The method for measuring the maximum tensile and shear force of a friction stir spot welded joint according to claim 1, characterized in that: the length (L) of the upper supporting side plate (1) in the first step is the tensile and shear measuring specimen (3 ) 14 times the thickness (t) of the lap joint. 4.根据权利要求1所述测量搅拌摩擦点焊接头最大拉剪力的方法,其特征在于:所述步骤一中上支撑侧板(1)的长度(L)为拉剪测量试件(3)搭接部分厚度(t)的16倍。4. The method for measuring the maximum tensile and shear force of friction stir spot welded joints according to claim 1, characterized in that: the length (L) of the upper support side plate (1) in the first step is the tensile and shear measurement specimen (3 ) 16 times the thickness (t) of the lap joint. 5.根据权利要求1所述测量搅拌摩擦点焊接头最大拉剪力的方法,其特征在于:所述步骤一中上支撑侧板(1)的长度(L)为拉剪测量试件(3)搭接部分厚度(t)的18倍。5. The method for measuring the maximum tensile and shear force of a friction stir spot welded joint according to claim 1, characterized in that: the length (L) of the upper support side plate (1) in the first step is the tensile and shear measurement specimen (3 ) 18 times the thickness (t) of the lap joint. 6.根据权利要求1所述测量搅拌摩擦点焊接头最大拉剪力的方法,其特征在于:所述步骤三中加载速度为0.6mm/min。6. The method for measuring the maximum tensile and shear force of the friction stir spot welding joint according to claim 1, characterized in that: the loading speed in the third step is 0.6 mm/min. 7.根据权利要求1所述测量搅拌摩擦点焊接头最大拉剪力的方法,其特征在于:所述步骤三中加载速度为0.8mm/min。7. The method for measuring the maximum tensile and shear force of the friction stir spot welding joint according to claim 1, characterized in that: the loading speed in the third step is 0.8 mm/min. 8.根据权利要求1所述测量搅拌摩擦点焊接头最大拉剪力的方法,其特征在于:所述步骤三中加载速度为1mm/min。8. The method for measuring the maximum tensile and shear force of the friction stir spot welding joint according to claim 1, characterized in that: the loading speed in the third step is 1 mm/min. 9.根据权利要求1所述测量搅拌摩擦点焊接头最大拉剪力的方法,其特征在于:所述步骤三中加载速度为1.2mm/min。9. The method for measuring the maximum tensile and shear force of the friction stir spot welding joint according to claim 1, characterized in that: the loading speed in the third step is 1.2 mm/min. 10.根据权利要求1所述测量搅拌摩擦点焊接头最大拉剪力的方法,其特征在于:所述步骤三中加载速度为1.4mm/min。10. The method for measuring the maximum tensile shear force of friction stir spot welded joints according to claim 1, characterized in that: the loading speed in the third step is 1.4 mm/min.
CN201310626656.XA 2013-11-29 2013-11-29 Measuring method for maximum tensile and shearing force of spot-welded joint of friction stir welding Expired - Fee Related CN103592185B (en)

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CN105136575A (en) * 2015-09-07 2015-12-09 江苏大学 Welding-type superhard blade mechanical property test device and method
CN105181437A (en) * 2015-06-08 2015-12-23 成都理工大学 Tension shear fracture simulation test device for fractured rock mass
CN106840874A (en) * 2017-01-05 2017-06-13 航天科工防御技术研究试验中心 A kind of laser welding overlaps weldment shearing force performance test methods
CN108896412A (en) * 2018-05-14 2018-11-27 安徽路港通工程试验检测有限公司 The corner welding line quality determining method of flat sheet and horn shape plate

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Cited By (5)

* Cited by examiner, † Cited by third party
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CN105136575A (en) * 2015-09-07 2015-12-09 江苏大学 Welding-type superhard blade mechanical property test device and method
CN106840874A (en) * 2017-01-05 2017-06-13 航天科工防御技术研究试验中心 A kind of laser welding overlaps weldment shearing force performance test methods
CN108896412A (en) * 2018-05-14 2018-11-27 安徽路港通工程试验检测有限公司 The corner welding line quality determining method of flat sheet and horn shape plate
CN108896412B (en) * 2018-05-14 2020-11-24 安徽路港通工程试验检测有限公司 Fillet welding quality detection method for planar plate and angular plate

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