CN103071922B - 一种高强度激光透射连接方法 - Google Patents

一种高强度激光透射连接方法 Download PDF

Info

Publication number
CN103071922B
CN103071922B CN201210581086.2A CN201210581086A CN103071922B CN 103071922 B CN103071922 B CN 103071922B CN 201210581086 A CN201210581086 A CN 201210581086A CN 103071922 B CN103071922 B CN 103071922B
Authority
CN
China
Prior art keywords
polymer
welding
pit
laser
laser transmission
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.)
Expired - Fee Related
Application number
CN201210581086.2A
Other languages
English (en)
Other versions
CN103071922A (zh
Inventor
刘会霞
赵振关
陈浩
黄创
严长
顾宇轩
孟冬冬
伍彦伟
蔡野
李品
王霄
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu University
Original Assignee
Jiangsu University
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 Jiangsu University filed Critical Jiangsu University
Priority to CN201210581086.2A priority Critical patent/CN103071922B/zh
Publication of CN103071922A publication Critical patent/CN103071922A/zh
Application granted granted Critical
Publication of CN103071922B publication Critical patent/CN103071922B/zh
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B29C65/1603—Laser beams characterised by the type of electromagnetic radiation
    • B29C65/1612—Infrared [IR] radiation, e.g. by infrared lasers
    • B29C65/1616—Near infrared radiation [NIR], e.g. by YAG lasers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B29C65/1629—Laser beams characterised by the way of heating the interface
    • B29C65/1635—Laser beams characterised by the way of heating the interface at least passing through one of the parts to be joined, i.e. laser transmission welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B29C65/1629—Laser beams characterised by the way of heating the interface
    • B29C65/1654—Laser beams characterised by the way of heating the interface scanning at least one of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/44—Joining a heated non plastics element to a plastics element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/303—Particular design of joint configurations the joint involving an anchoring effect
    • B29C66/3032—Particular design of joint configurations the joint involving an anchoring effect making use of protrusions or cavities belonging to at least one of the parts to be joined
    • B29C66/30325—Particular design of joint configurations the joint involving an anchoring effect making use of protrusions or cavities belonging to at least one of the parts to be joined making use of cavities belonging to at least one of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/74—Joining plastics material to non-plastics material
    • B29C66/742—Joining plastics material to non-plastics material to metals or their alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/812—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B29C66/8126—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps characterised by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B29C66/81266—Optical properties, e.g. transparency, reflectivity
    • B29C66/81267—Transparent to electromagnetic radiation, e.g. to visible light
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/836—Moving relative to and tangentially to the parts to be joined, e.g. transversely to the displacement of the parts to be joined, e.g. using a X-Y table
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/922—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by measuring the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/9221—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by measuring the pressure, the force, the mechanical power or the displacement of the joining tools by measuring the pressure, the force or the mechanical power
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/74—Joining plastics material to non-plastics material
    • B29C66/742—Joining plastics material to non-plastics material to metals or their alloys
    • B29C66/7428—Transition metals or their alloys
    • B29C66/74283—Iron or alloys of iron, e.g. steel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/812—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B29C66/8122—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps characterised by the composition of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/929—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools characterized by specific pressure, force, mechanical power or displacement values or ranges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/93—Measuring or controlling the joining process by measuring or controlling the speed
    • B29C66/939—Measuring or controlling the joining process by measuring or controlling the speed characterised by specific speed values or ranges

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Electromagnetism (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Laser Beam Processing (AREA)

Abstract

本发明公开了一种高强度激光透射连接方法，属于激光透射焊接技术领域，特指聚合物与聚合物的激光透射焊接。本发明先将金属材料需要焊接的表面用钻削机械加工孔的方法处理，在其表面形成凹坑，焊接时把表面经过钻削机械处理后的金属作为下层吸光材料，聚合物作为上层透光材料，采用搭接的连接形式，用约束层夹紧并施加焊接压力，使用半导体激光器进行激光透射焊接，使得表面温度快速达到上层聚合物的熔点，聚合物表面融化，由于聚合物表面钻削机械处理形成了凹坑，所以在焊接压力的作用下，熔化的聚合物流进凹坑，在焊缝处形成一种铆接结构的咬合界面，可实现获得高强度的激光透射焊接。本发明可广泛的应用于对连接强度要求较高的激光透射焊接领域。

Description

一种高强度激光透射连接方法
技术领域
本发明属于激光透射焊接技术领域，特指一种能提高金属和聚合物激光透射焊接连接强度的方法。用钻削机械加工孔的方法在金属表面形成具有一定深度的凹坑，在进行激光透射焊接时熔化的透光聚合物受到焊接压力的作用流入凹坑，在焊缝处形成一种铆接结构的咬合界面，增加聚合物与聚合物的连接接触面积，从而促使金聚合物与聚合物更好的相互结合，获得高强度的激光透射焊接。
背景技术
目前，激光透射焊接技术作为一项具有不透气、不漏水、焊接速度快、精度高、焊缝强度高、无飞边、无残渣、无振动、热应力小、易于控制等诸多优点的高新加工技术，在聚合物与聚合物、聚合物与金属等同种和异种材料的焊接加工领域得到广泛应用，焊接产品伴随着激光透射焊接技术的发展，越来越多的被应用于汽车工业、医学等领域，如文献《PET薄膜与316L不锈钢薄板激光透射连接实验研究》中，316L不锈钢薄板与聚合物经过激光透射焊接可以应用于医学中作为生物植入体，但其指出激光透射连接接头的质量有待进一步研究提高。
连接强度是焊缝质量的一个重要评价指标，通常可以用剥离强度和拉伸强度衡量。随着技术的发展，汽车零部件、电子器件产品封装、医疗器械等对激光透射焊接连接强度提出了较高的要求。文献《ChemicalbondformationduringlaserbondingofTeflonFEPandtitanium》指出，透射焊接焊缝接触面上发生了反应，依靠化学键合实现连接，但是依靠化学键，其强度并不能达到目前对封装等技术高强度、耐久性的要求，实际应用中就需要在激光能量适中时寻找一种可以获得高强度激光透射焊接的方法，既可以满足实际生产中高强度、耐久性的需要，也可以大大减少成本的投入。目前国内外对于提高激光焊接强度的方法主要还是集中在优化工艺参数方面,经检索：国外文献《EffectofanodizingonpulsedNd:YAGlaserjoiningofpolyethyleneterephthalate(PET)andaluminiumalloy(A5052)》中提出一种方法,其特点是:将A5052铝合金表面进行阳极氧化,形成一层阳极氧化层,在激光透射焊接时用来吸收更多的激光能量,从而形成更深层次的熔池,实现激光透射焊接连接强度的提高。文献《激光冲击表面强化对焊接接头力学性能的影响》表述了一种对焊接接头的表面强化处理提高拉伸强度的方法，此方法是在焊接后再进行焊接连接强度的提高，在透射焊接中不可避免的会造成焊接后焊缝的破坏。而本发明针对聚合物的材料特点，通过机械滚压处理改变金非透光聚合物材料表面形貌，在其表面形成有利于提高对激光吸收的凹坑，激光透射焊接时,能够使得非透光聚合物表面快速升温,透光聚合物快速融化,熔化的聚合物在焊接压力的作用下进入凹坑中，在焊缝处形成一种类似铆接结构的咬合界面，从而获得高强度的激光透射焊接，尤其是比较高的拉伸强度。
发明内容
本发明的目的是提供一种高强度激光透射连接方法。根据激光透射焊接特点，通过钻削机械加工孔方法在金属材料的表面形成一定深度的凹坑，在焊接时使得受到焊接压力作用的熔化聚合物流进凹坑,在焊缝处形成一种铆接结构的咬合界面,增加聚合物与聚合物的连接接触面积，从而促使金聚合物与聚合物更好的相互结合，实现提高激光透射焊接连接强度。
本发明的具体步骤为：
A）形成凹坑：将表面平整的原始形貌金属用乙醇进行超声波清洗，清除其表面杂质，吹干后用钻削机械加工孔的方法，在原始形貌金属表面形成直径40um—500um，深度50um—100um，凹坑间距为2mm—5mm的凹坑；
B）焊件装配：将表面形成凹坑的钻削后金属作为下层吸光材料，聚合物作为上层透光材料放在工作台上，聚合物搭接在钻削后金属上，聚合物和钻削后金属紧密贴近，中间没有间隙，约束层置于聚合物上，压板置于约束层上方，通过设于压板上的压头施加焊接压力，通过置于钻削后金属与工作台之间的压力传感器测量压力数值；
C）焊接试验：用能量连续的激光发生器对约束层进行激光透射，激光束的能量、激光光斑大小由激光器控制计算机调节和控制，激光束透过约束层和聚合物使金属表面温度快速达到上层聚合物的熔点，聚合物表面融化，聚合物受到压头施加的焊接压力，聚合物的表层熔化并流进凹坑，在焊缝处形成铆接结构的咬合界面，控制装置控制工作台沿X方向移动调节工件与激光束的相对位置。其中被处理的金属可根据实际材料焊接区域的位置及宽度选择凹坑的位置和行列数，同时选择凹坑的深度要参考实际焊接金属材料的厚度。
本发明中金属与聚合物连接的形式采用搭接，即：金属在下面，聚合物置于金属之上，金属与聚合物有一定的重合接触区域。
本发明的实现，可以更好、更快、方便、安全、可靠的显著提高激光透射焊接连接强度，使得提高激光透射焊接连接强度领域得到突破，不再受限于依靠传统的优化工艺参数方法来获得高强度的焊缝该方法使得金属与聚合物的局部连接更加的牢固，在医学和光电子领域获得封装的耐久性,在汽车等连接强度要求很高的领域实现构件连接的应用。本发明通过显著提高激光透射焊接的连接强度推动激光透射焊接技术在工业上的应用。
附图说明
图1为焊接材料的连接形式示意图。
图2为本发明焊件装配及原理图。
图3为金属表面凹坑形貌图。
图4为实施例焊接后的剖面图。
图中，1计算机，2压力传感器，3钻削后金属，4聚合物，5约束层，6压板，7激光发生器，8压头，9工作台，10工作台控制装置，11凹坑，12金属原始形貌，13尼龙，14进入凹坑的尼龙，15304不锈钢。
具体实施方式
下面结合具体实施例对本发明进一步说明，用本发明焊接透明的尼龙13和304不锈钢15
焊件准备:选择的焊接透明透明材料尼龙13尺寸为10x10x2mm，吸光材料304不锈钢15尺寸为10x10x0.6mm，激光透射焊接激光器采用的是能量连续的半导体激光发生器7，最大功率为130w，波长为980nm±10nm，43型微孔钻床参数为主轴转速n：15000—20000r/min，进给速度f：0.5—1mm/s，钻头直径为0.1—0.5mm，钻头材料为高速钢。
焊件的表面处理:将样品304不锈钢15进行超声波清洗，去掉其表面杂质,将其放在43型微孔钻床工作台上,选定参数为主轴转速n：20000r/min，进给速度f：0.5mm/s，每次进深0.05mm，根据实际材料的焊接区域位置进行表面凹坑加工，同时用乙醇清洗掉尼龙13表面的杂质，吹干后备用，加工的凹坑直径为0.1mm，深度为0.1mm。
焊件的装配及焊接:将步骤2得到的304不锈钢15放在半导体激光器的工作台9上作为下层吸光材料，尼龙13作为上层吸光材料，通过激光发生器控制计算机1调节功率为：60w，光斑直径为2mm。尼龙13和304不锈钢15采用如图1所示的搭接连接形式，尼龙13和304不锈钢15紧密贴近，中间没有间隙，用K9玻璃作为约束层，在约束层玻璃上放置压板6并在压板上用压头8施加焊接压力0.069KN，激光器按照120mm/min速度进行激光透射焊接，激光透射焊接时通过工作台控制装置10实现工件沿X方向移动，用于调整工件与激光束的相对位置。
形成高强度的焊接接头,对焊缝分析可看到进入凹坑的尼龙13，如图4所示焊接后的形貌图。

Claims (2)

1.一种高强度激光透射连接方法，其特征在于，具体步骤为：
A）形成凹坑：将表面平整的原始形貌金属（12）用乙醇进行超声波清洗，清除其表面杂质，吹干后用钻削机械加工孔的方法，在原始形貌金属（12）表面形成直径40um—500um，深度50um—100um，凹坑间距为2mm—5mm的凹坑；
B）焊件装配：将表面形成凹坑的钻削后金属（3）作为下层吸光材料，聚合物（4）作为上层透光材料放在工作台（9）上，聚合物（4）搭接在钻削后金属（3）上，聚合物（4）和钻削后金属（3）紧密贴近，中间没有间隙，约束层（5）置于聚合物（4）上，压板（6）置于约束层（5）上方，通过设于压板（6）上的压头（8）施加焊接压力，通过置于钻削后金属（3）与工作台（9）之间的压力传感器（2）测量压力数值；所述约束层（5）对于所应用激光是透明的，激光束透过时无明显能量损失；
C）焊接试验：用能量连续的激光发生器（7）对约束层（5）进行激光透射，激光束的能量、激光光斑大小由激光器控制计算机（1）调节和控制，激光束透过约束层（5）和聚合物（4）使金属表面温度快速达到上层聚合物（4）的熔点，聚合物（4）表面融化，聚合物（4）受到压头（8）施加的焊接压力，聚合物（4）的表层熔化并流进凹坑（11），在焊缝处形成铆接结构的咬合界面，控制装置（10）控制工作台（9）沿X方向移动调节工件与激光束的相对位置；
所述聚合物（4）为透明的尼龙，所述原始形貌金属（12）为304不锈钢金属，用K9玻璃作为约束层。
2.根据权利要求1的一种高强度激光透射连接方法，其特征在于，所述步骤A），原始形貌金属（12）根据实际材料焊接区域的位置及宽度选择凹坑的位置和行列数。
CN201210581086.2A 2012-12-28 2012-12-28 一种高强度激光透射连接方法 Expired - Fee Related CN103071922B (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210581086.2A CN103071922B (zh) 2012-12-28 2012-12-28 一种高强度激光透射连接方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210581086.2A CN103071922B (zh) 2012-12-28 2012-12-28 一种高强度激光透射连接方法

Publications (2)

Publication Number Publication Date
CN103071922A CN103071922A (zh) 2013-05-01
CN103071922B true CN103071922B (zh) 2016-08-03

Family

ID=48148727

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201210581086.2A Expired - Fee Related CN103071922B (zh) 2012-12-28 2012-12-28 一种高强度激光透射连接方法

Country Status (1)

Country Link
CN (1) CN103071922B (zh)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104626543B (zh) * 2015-01-12 2017-02-22 中国科学院宁波材料技术与工程研究所 热塑性复合材料的焊接方法
CN105855706B (zh) * 2015-02-09 2018-02-13 司浦爱激光技术英国有限公司 激光焊缝
CN105619027B (zh) * 2016-01-21 2017-07-21 江苏盐电阀门有限公司 一种楔顶式超低温球阀
CN105583523B (zh) * 2016-02-25 2017-06-30 长沙理工大学 一种超声辅助激光深熔焊接板材的方法
CN105690739A (zh) * 2016-03-22 2016-06-22 天津大学 一种使金属和塑料良好连接的超声波塑料铆焊方法
CN105643103B (zh) * 2016-03-31 2017-11-21 长沙理工大学 一种镀锌钢板激光搭接焊接方法
BE1025341B1 (fr) * 2017-06-27 2019-02-04 LASER ENGINEERING APPLICATIONS S.A. en abrégé LASEA S.A. Méthode pour structurer un substrat
DE102019106284A1 (de) * 2019-03-12 2020-09-17 HELLA GmbH & Co. KGaA Verfahren zur Herstellung einer Fügeverbindung zwischen einem Strukturbauteil aus einem Kunststoff und einer Metallkomponente
CN110193664B (zh) * 2019-05-29 2021-06-18 上海梁为科技发展有限公司 一种金属-无机复合材料的制备方法
CN116373313A (zh) * 2023-03-15 2023-07-04 苏州大学 一种陶瓷与透明塑料焊接的方法、设备及陶瓷塑料焊接件
CN117564460B (zh) * 2023-11-15 2024-07-19 中南大学 一种非光学接触异质材料高强度超快激光焊接方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009226643A (ja) * 2008-03-19 2009-10-08 Aisin Seiki Co Ltd 接合方法及び接合体
JP2010076437A (ja) * 2008-08-29 2010-04-08 Toray Ind Inc 熱可塑性樹脂組成物からなる成形体と金属の複合体の製造方法
JP2010274279A (ja) * 2009-05-27 2010-12-09 Nagoya Industrial Science Research Inst レーザを用いた部材の接合方法
WO2012020531A1 (ja) * 2010-08-11 2012-02-16 株式会社日立製作所 レーザ接合方法
CN102712136A (zh) * 2010-01-12 2012-10-03 日本轻金属株式会社 铝合金部件和树脂部件的激光接合方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009226643A (ja) * 2008-03-19 2009-10-08 Aisin Seiki Co Ltd 接合方法及び接合体
JP2010076437A (ja) * 2008-08-29 2010-04-08 Toray Ind Inc 熱可塑性樹脂組成物からなる成形体と金属の複合体の製造方法
JP2010274279A (ja) * 2009-05-27 2010-12-09 Nagoya Industrial Science Research Inst レーザを用いた部材の接合方法
CN102712136A (zh) * 2010-01-12 2012-10-03 日本轻金属株式会社 铝合金部件和树脂部件的激光接合方法
WO2012020531A1 (ja) * 2010-08-11 2012-02-16 株式会社日立製作所 レーザ接合方法

Also Published As

Publication number Publication date
CN103071922A (zh) 2013-05-01

Similar Documents

Publication Publication Date Title
CN103071922B (zh) 一种高强度激光透射连接方法
CN103057117A (zh) 一种提高激光透射焊接连接强度的方法
Huang et al. Optimization of weld strength for laser welding of steel to PMMA using Taguchi design method
CN103009626B (zh) 一种激光透射焊接连接方法
Gillner et al. Laser applications in microtechnology
CN105149778B (zh) 一种消除铝钢异种金属激光焊接裂纹和气孔的装置及方法
CN103056525A (zh) 一种新型激光透射焊接连接方法
CN107984085B (zh) 一种异质金属激光-超声复合焊接方法及装置
JP4572118B2 (ja) 熱可塑性プラスチック成形品を軌跡溶着するための方法と装置
CN106271069A (zh) 一种不锈钢与铝合金的激光焊接方法
DE50113511D1 (de) Verfahren zum Laserdurchstrahlschweissen von Kunststoffteilen
CN111347160B (zh) 一种镀铝钢-铝合金的焊接方法
JP2009226643A (ja) 接合方法及び接合体
CN107382044A (zh) 一种透明薄玻璃激光透射焊接的方法
WO2021139066A1 (zh) 一种用于塑件的激光透射焊接方法
JP5057557B2 (ja) シリーズスポット溶接方法及び溶接装置
CN103071923B (zh) 一种激光透射复合连接方法
CN103358024B (zh) 一种金属面板部件激光点焊方法
CN111421222A (zh) 一种用于大厚度钛镍异种材料的搅拌摩擦对接焊装置及其加工方法
CN106825923A (zh) 一种3c键盘中铝板与铝架组件的焊接工艺方法
CN112338335A (zh) 一种gh4169镍基高温合金卡箍和箍带不等厚电阻点焊方法
Tian et al. The connection of glass and metal with a large gap by combining laser soldering and ultrafast laser welding
CN105171240A (zh) 一种不锈钢换热板片搭接全焊透激光焊接方法
CN109719388B (zh) 一种白亮焊点的加工方法以及系统
Rudrapati et al. On the Relationship Between Laser Welding Process Variables in Through-transmission Laser Welding (TTLW) of Polycarbonate Plastics.

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20160803

Termination date: 20161228

CF01 Termination of patent right due to non-payment of annual fee