WO2024051203A1 - Procédé de soudage utilisant une collision provoquée par des vibrations haute fréquence à l'intérieur d'une micro-distance - Google Patents

Procédé de soudage utilisant une collision provoquée par des vibrations haute fréquence à l'intérieur d'une micro-distance Download PDF

Info

Publication number
WO2024051203A1
WO2024051203A1 PCT/CN2023/094409 CN2023094409W WO2024051203A1 WO 2024051203 A1 WO2024051203 A1 WO 2024051203A1 CN 2023094409 W CN2023094409 W CN 2023094409W WO 2024051203 A1 WO2024051203 A1 WO 2024051203A1
Authority
WO
WIPO (PCT)
Prior art keywords
welding
frequency
frequency vibration
vibration
micro
Prior art date
Application number
PCT/CN2023/094409
Other languages
English (en)
Chinese (zh)
Inventor
程青青
Original Assignee
湖北鑫鼎泰自动化科技有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 湖北鑫鼎泰自动化科技有限公司 filed Critical 湖北鑫鼎泰自动化科技有限公司
Publication of WO2024051203A1 publication Critical patent/WO2024051203A1/fr

Links

Classifications

    • 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
    • B23K28/00—Welding or cutting not covered by any of the preceding groups, e.g. electrolytic welding

Definitions

  • the present invention relates to the field of welding technology, and in particular to a micro-pitch high-frequency vibration impact welding method.
  • Welding is a manufacturing process and technology that uses heat, high temperature or high pressure to join metal or other thermoplastic materials such as plastics. During the welding process, the workpiece and the solder melt to form a molten area. After the molten pool cools and solidifies, a connection between the materials is formed. This process usually requires the application of pressure. There are many energy sources for welding, including gas flame, arc, laser, electron beam, friction and ultrasonic wave.
  • friction welding is a commonly used welding technology in recent years. It uses the heat generated by friction on the contact surface of the workpiece as a heat source to cause plastic deformation of the workpiece under pressure for welding. Under the action of pressure, the relative motion between the welding contact end faces is used to generate friction heat and plastic deformation heat on the friction surface and its nearby areas, causing the temperature of the friction surface and its nearby areas to rise to a temperature range close to but generally lower than the melting point. The material The deformation resistance is reduced, the plasticity is improved, and the oxide film at the interface is broken. Under the action of upsetting pressure, the material undergoes plastic deformation and flow, and the welding is realized through molecular diffusion and recrystallization at the interface.
  • the applicant's research found that if the weldments do not rub along the friction surface but collide with each other, the temperature will also rise. This finding can be used in welding technology, especially for some welding needs that are not suitable for vibration friction welding due to structural reasons.
  • the purpose of the present invention is to provide a micro-pitch high-frequency vibration collision welding method in view of the shortcomings of the existing technology, which uses high-frequency collision to generate heat for welding and provides a new welding method.
  • the technical solution adopted by the present invention to solve the technical problem is: a micro-pitch high-frequency vibration collision welding method.
  • the first welding part and the second welding part are relatively vibrated at high frequency, so that the first welding part located on the first welding part is The surface collides with the second welding surface located on the second welding piece at high frequency within a small distance, which is 0.1-3mm.
  • the high-frequency collision is stopped. Frequent vibration, then connect the two workpieces to be welded under a certain pressure along the vibration direction, continue to press and then release to complete the welding.
  • the second welding part vibrates at high frequency through a vibration generator, and the first welding part moves toward the second welding part under the action of external force.
  • the melting point of the first welding part is lower than or equal to the melting point of the second welding part.
  • the first welding part and the second welding part are made of thermoplastic plastic.
  • the micro distance is 0.1-0.5mm, 0.5-1mm or 1-3mm.
  • the vibration frequency of the high-frequency vibration is 50-1000 Hz.
  • the vibration frequency of the high-frequency vibration is 80-120Hz, 200-240Hz or 240-1000Hz.
  • the first welding surface and the second welding surface are preheated.
  • the frequency and amplitude of the first welding part and the second welding part relative to the high-frequency vibration remain unchanged.
  • the frequency of the first welding part and the second welding part relative to the high-frequency vibration gradually increases, and the amplitude gradually decreases.
  • the present invention provides a new welding method, which has the following advantages:
  • the biggest advantage of this application is that the requirements for product appearance and structure are low.
  • the vibration direction of linear vibration friction welding in the existing technology is along the welding surface.
  • the shape of the welding surface is complex, relative motion cannot occur due to swinging, so it is impossible to Welding, and this application uses high-frequency vibration to make the welding surface collide with high-speed and heat to achieve welding. It only requires that there are no obstacles in the vibration direction, that is, other parts outside the welding surface will not collide, so it can be used for complex shapes and structures. products for welding.
  • the pressure direction of the linear vibration friction welding in the existing technology is perpendicular to the vibration direction, and the welding is achieved entirely through pressure to generate friction and heat on the welding surface.
  • the weldment is not firmly fixed, the two weldments tend to swing synchronously, thus causing Unable to generate heat by friction.
  • one weldment will not hinder the vibration of the other weldment, so welding can be achieved by simply fixing the weldment through the welding mold, and synchronous vibration of the two weldments will not occur.
  • micro-pitch high-frequency vibration collision welding of this application is a new welding method with good welding quality, low energy consumption, high precision, and wide application range.
  • Figure 1 is a schematic diagram of the first embodiment of the welding structure of the present invention.
  • Figure 2 is a schematic diagram of the second embodiment of the welding structure of the present invention.
  • Figure 3 is a schematic diagram of a third embodiment of the welding structure of the present invention.
  • Figure 4 is a schematic diagram of the fourth embodiment of the welding structure of the present invention.
  • Figure 5 is a schematic diagram of the second vibration direction of the welded structure in Figure 1.
  • Figure 6 is a schematic diagram of the second vibration direction of the welded structure in Figure 2.
  • Figure 7 is a schematic diagram of the third vibration direction of the welded structure in Figure 1.
  • Figure 8 is a schematic diagram of the second vibration direction of the welded structure in Figure 4.
  • Figure 9 is a schematic structural diagram of a sample for welding quality testing according to the present invention.
  • Figure 10 is a specification diagram of the second weldment in Figure 9.
  • Figure 11 is a specification diagram of the first weldment in Figure 9.
  • the micro-pitch high-frequency vibration impact welding method of this embodiment first vibrates the first welding part 1 and the second welding part 2 relatively at high frequencies, so that the first welding surface of the first welding part 1 and the second welding part 2
  • the second welding surface collides with high frequency within a small distance, which is 0.1-3mm.
  • the high-frequency vibration is stopped, and then the vibration direction is
  • the two workpieces to be welded are butted together under a certain pressure, and then released after continuous pressing to complete the welding.
  • This welding process uses high-frequency collisions to generate heat to melt the surface of the welding parts for welding.
  • the principle is that when the welding parts collide, part of the mechanical energy is converted into internal energy through internal friction, thereby generating heat.
  • the heat generated by multiple high-frequency collisions accumulates and thus The surface of the weldment is melted.
  • the welding method of this application is compared with the frictional heat generation of vibration friction welding.
  • the two welding methods generate heat in different ways and the directions of vibration are also different.
  • Vibration friction welding must vibrate along the welding surface, that is, the pressure direction of the welding piece is in line with the welding surface. It is vertical. During the welding process, the two welding surfaces are always in contact under pressure, so it imposes greater restrictions on the shape of the welding surface.
  • the vibration direction of the welding method of the present application is perpendicular to the welding surface, or at a certain angle, and the vibration direction is the A direction in the drawing. It can be used for welding structures of various shapes, as shown in Figures 1, 2, 3, and 4.
  • the welding surface in Figure 1 is a flat surface; the welding surface in Figure 2 is a spatial curved surface; the welding surface in Figure 3 is a combination of two planes; The welding surface in Figure 4 is an inclined surface.
  • the drawings are only examples to illustrate the welding structures that can be welded by the present invention. It is foreseeable that as long as there are no obstacles in the vibration direction, welding surfaces of various shapes, including combinations of the above welding surfaces, can be welded using the present invention.
  • the vibration direction during welding of the present invention is typically shown in Figures 1 and 8.
  • the angle between the vibration direction and the welding surface is 90°, that is, the first welding part 1 and the second welding part 2 vibrate relative to each other in the vertical direction.
  • the welding surface is a curved surface, as shown in Figures 2 and 3, it can also be approximately considered that the first welding part 1 and the second welding part 2 vibrate relative to each other in the vertical direction.
  • the angle between the vibration direction and the welding surface is not 90°.
  • the second welding part 2 vibrates along an arc-shaped trajectory, thereby colliding with the first welding part 1 at high frequency.
  • the entire welding time of the present invention is about 1-20s.
  • the second weldment When vibrating at high frequency, the second weldment vibrates at high frequency through the vibration generator, and the first weldment moves toward the second weldment under the action of an external force.
  • the pressing direction of the external force is B in the drawing. direction, that is, it is parallel to or at a certain angle with the direction of vibration.
  • the first welding part 1 can be fixed during high-frequency vibration, and the second welding part 2 can be vibrated at high frequency by a vibration generator.
  • the materials of the first welding part 1 and the second welding part 2 may be the same or different.
  • the melting point of the first welding part 1 is lower than or equal to the melting point of the second welding part. , that is, the low melting point welding parts are fixed and the high melting point welding parts are vibrated at high frequency.
  • first welding part 1 and the second welding part 2 are made of thermoplastic plastic.
  • the micro distance is 0.1-0.5mm, 0.5-1mm or 1-3mm
  • the vibration frequency of the high-frequency vibration is 80-120Hz, 200-240Hz or 240-1000Hz. The smaller the distance, the higher the collision frequency. If the value is high, the heat will be generated faster and the heat loss will be smaller. However, considering the characteristics of the material and the accuracy of the welding equipment, it can be adjusted according to the welding requirements.
  • the first welding surface and the second welding surface can be preheated before high-frequency vibration, for example, to 50°C.
  • the vibration frequency and amplitude of the second welding piece 2 may remain unchanged or may change.
  • the welding surface gradually melts or even fuses to a certain extent.
  • the vibration frequency can be gradually increased and the amplitude gradually reduced.
  • the vibration center of the first welding part 1 and the second welding part 2 The distance between them becomes smaller.
  • test materials are PP, PMMA, and ABS, including 4 tests, namely PP versus PP, PMMA versus PMMA, ABS versus ABS, and ABS (second weldment) versus PMMA (first weldment).
  • the test method is: process the welding material into a cylindrical shape as shown in Figures 9, 10, and 11, with a threaded hole in the middle.
  • the threaded hole is used to connect to the tensile machine during testing, and the welding surface of the first weldment 1 is provided with an annular Glue overflow groove 11, the welding surface of the second welding part 2 is provided with an annular welding rib 21, which are welded together according to the welding plan of the present invention, and then a tensile machine is used to pull the first welding part 1 and the second welding part Open to obtain the maximum breaking force when the welding joint breaks.
  • the test results are shown in the table below.
  • the welding strength basically meets the industrial application welding strength standards. Especially for high-melting point PMMA versus low-melting point ABS, PMMA is placed on the vibrating side of the high-frequency collision welding testing machine, and ABS is fixed. The strength after welding far exceeds the conventional welding strength requirements and is basically close to the welding strength of the main body.
  • the welding method of the present invention has large development space and application prospects.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

L'invention concerne un procédé de soudage utilisant une collision provoquée par des vibrations haute fréquence à l'intérieur d'une micro-distance. Tout d'abord, une première partie de soudage (1) et une seconde partie de soudage (2) vibrent relativement à haute fréquence, de sorte qu'une première face de soudage située sur la première partie de soudage et une seconde face de soudage située sur la seconde partie de soudage entrent en collision à haute fréquence à l'intérieur d'une micro-distance, qui est de 0,1 à 3 mm ; après que la chaleur générée par collision amène la première face de soudage et/ou la seconde face de soudage à être fondues, les vibrations haute fréquence s'arrêtent ; puis, deux pièces à souder sont jointes bout à bout sous une certaine pression dans une direction de vibration et sont pressées en continu puis libérées, de sorte que le soudage est achevé. Dans le procédé, au moyen d'une vibration haute fréquence, des surfaces de soudage effectuent une collision et un frottement à grande vitesse et haute fréquence pour générer de la chaleur, réalisant ainsi un soudage ; les exigences pour l'aspect et la structure d'un produit sont faibles ; aucune poussière n'est générée ; la qualité de soudage est bonne ; la consommation d'énergie est faible ; et la précision est élevée.
PCT/CN2023/094409 2022-09-09 2023-05-16 Procédé de soudage utilisant une collision provoquée par des vibrations haute fréquence à l'intérieur d'une micro-distance WO2024051203A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202211101421.4 2022-09-09
CN202211101421.4A CN115570291A (zh) 2022-09-09 2022-09-09 微距高频振动碰撞焊接方法

Publications (1)

Publication Number Publication Date
WO2024051203A1 true WO2024051203A1 (fr) 2024-03-14

Family

ID=84580469

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2023/094409 WO2024051203A1 (fr) 2022-09-09 2023-05-16 Procédé de soudage utilisant une collision provoquée par des vibrations haute fréquence à l'intérieur d'une micro-distance

Country Status (2)

Country Link
CN (1) CN115570291A (fr)
WO (1) WO2024051203A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115570291A (zh) * 2022-09-09 2023-01-06 湖北鑫鼎泰自动化科技有限公司 微距高频振动碰撞焊接方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1539709A (zh) * 2003-04-25 2004-10-27 ����ŵ˹��е���̹�˾ 捆扎工具焊接马达的控制系统
US20090211694A1 (en) * 2008-02-27 2009-08-27 Honda Motor Co. Ltd. Vibration welding method and vibration welding apparatus
CN111822842A (zh) * 2020-07-14 2020-10-27 中车株洲电机有限公司 一种超声波焊接方法
CN216466260U (zh) * 2021-12-14 2022-05-10 湖北鑫鼎泰自动化科技有限公司 可精确控制焊件距离的振动摩擦焊
CN115570291A (zh) * 2022-09-09 2023-01-06 湖北鑫鼎泰自动化科技有限公司 微距高频振动碰撞焊接方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016209948A1 (de) * 2016-06-07 2017-12-07 Robert Bosch Gmbh Verfahren zum Verbinden zweier Bauteile und Bauteileverbund
CN109202263B (zh) * 2017-09-15 2021-02-02 中国航空制造技术研究院 一种线性摩擦焊接方法
CN108857037B (zh) * 2018-08-03 2024-01-26 辽宁工业大学 一种兆赫级高频超声波焊接装置及其方法
CN111421826A (zh) * 2020-04-01 2020-07-17 嘉能工业智能设备（昆山）有限公司 一种基于高频振动的聚酯材料摩擦焊接模组及土工格栅
CN216264009U (zh) * 2021-08-16 2022-04-12 浙江百盛光电股份有限公司 超声波焊接装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1539709A (zh) * 2003-04-25 2004-10-27 ����ŵ˹��е���̹�˾ 捆扎工具焊接马达的控制系统
US20090211694A1 (en) * 2008-02-27 2009-08-27 Honda Motor Co. Ltd. Vibration welding method and vibration welding apparatus
CN111822842A (zh) * 2020-07-14 2020-10-27 中车株洲电机有限公司 一种超声波焊接方法
CN216466260U (zh) * 2021-12-14 2022-05-10 湖北鑫鼎泰自动化科技有限公司 可精确控制焊件距离的振动摩擦焊
CN115570291A (zh) * 2022-09-09 2023-01-06 湖北鑫鼎泰自动化科技有限公司 微距高频振动碰撞焊接方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SHEN, SHIYAO: "Electroslag Welding and Special Welding", WELDING METHODS AND EQUIPMENT, vol. 3, 31 January 1982 (1982-01-31), pages 181 - 182, XP009554953 *

Also Published As

Publication number Publication date
CN115570291A (zh) 2023-01-06

Similar Documents

Publication Publication Date Title
WO2024051203A1 (fr) Procédé de soudage utilisant une collision provoquée par des vibrations haute fréquence à l'intérieur d'une micro-distance
CN108326429B (zh) 一种超声辅助激光焊接装置与方法
US10399274B2 (en) Method for using transverse sonotrode in ultrasonic welding
US10399175B2 (en) Systems and methods for improving weld strength
US10981245B2 (en) Apparatus for ultrasonic welding of polymers and polymeric composites
JP3466175B2 (ja) 超音波振動ホーン
CN110480157B (zh) 连续变截面工件激光焊接方法和系统
US9205596B2 (en) Ultrasonic sonotrode for transversely aligned transducer
CN105108361A (zh) 无匙孔搅拌摩擦焊点焊装置及方法
US20200101519A1 (en) Ultrasonically Assisted Self-Piercing Riveting
CN109128486B (zh) 一种摆动摩擦焊接方法
JP5494065B2 (ja) スポット溶接方法及びスポット溶接継手
CN115747785A (zh) 一种激光-冷喷涂复合远程高速激光熔覆方法
CN112809207B (zh) 一种多自由度聚焦超声辅助激光加工装置
JP6428450B2 (ja) 薄鋼板のリモートレーザ切断方法とその装置
CN113954371A (zh) 超声波热熔焊接方法以及超声波热熔焊接组件
Thapliyal Ultrasonic welding—a modern welding technology for metals and plastics
JP6096016B2 (ja) 金属体と樹脂体との接合方法
CN112916994A (zh) 一种用于异种金属超声电阻点焊装置及方法
JP2887860B2 (ja) プロジェクション溶接方法
JP2013034963A (ja) 超音波振動用ブースタ、同ブースタを用いた超音波振動接合装置、同ブースタを用いた超音波振動溶着装置
JP2020163411A (ja) レーザ溶接装置およびレーザ溶接方法
CN108907394A (zh) 一种车用钢-铝的焊接方法
CN216758641U (zh) 一种应用于激光焊接的定位夹紧装置
CN219093972U (zh) 激光焊接设备

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 23861907

Country of ref document: EP

Kind code of ref document: A1