Method and apparatus for joining workpieces at a lap joint

A technology for connecting devices and joints, used in welding/welding/cutting items, manufacturing tools, welding equipment, etc., to solve problems such as loss of material fluidity and introduction of multi-power

Active Publication Date: 2017-08-01
SCANSONIC MI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

600°C is a low temperature relative to the melting point of aluminum, so there is a danger of introducing too much power into the component in the open steam capillary (Keyhole)
This pasty state impairs the fluidity of the material

Method used

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  • Method and apparatus for joining workpieces at a lap joint
  • Method and apparatus for joining workpieces at a lap joint
  • Method and apparatus for joining workpieces at a lap joint

Examples

Experimental program
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Embodiment Construction

[0054] according to figure 1 The connecting device is a laser beam welding device with remote-controlled laser processing optics; the processing beam is thus a laser. The laser beam production unit 1 generates a laser beam 2 which is aimed by an aiming unit 3 movable along the beam axis onto a deflection unit 4 a oscillating about its respective transverse axis and a deflection unit 4 b oscillating about its longitudinal axis. The focusing unit 5 finally produces a laser burn spot 8 on the surfaces of the workpieces 6 (upper plate) and 7 (lower plate), which burns at a feed speed V s Move along the connection junction.

[0055] The projection device 10 projects a beam of light perpendicular to the joining point onto the workpiece surface with the measuring beam 11 . The sensor 13 detects the light, wherein the sensor focusing unit 12 can be connected in series at the front end of the sensor 13 . The evaluation and regulation unit 15 connected to the sensor thus calculates t...

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PUM

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Abstract

The invention relates to a method and an apparatus for joining two workpieces (6, 7) made of metal materials using a processing beam (2) by forming a weld seam along a lap joint, wherein a gap (16) formed between the workpieces (6, 7) at the lap joint is filled during the welding process. During the welding process, the processing beam (2) performs a three-dimensionally oscillating movement parallel and / or perpendicularly to the joint, said oscillating movement being superimposed on the advancing movement. The oscillatory parameters of said oscillation, the speed of advancement (vs), the power of the processing beam (2), and the angle of incidence of the processing beam (2) on the workpiece surfaces are dynamically adjusted during the welding process in such a way that the upper metal sheet (6) fuses to the required extent and the fused material (17) flows from the upper metal sheet (6) onto the lower metal sheet (7) such that the gap (16) is closed. The gap height is continuously measured during the welding process, and the process parameters are adjusted in such a way that the gap (16) can be reliably closed with fused material. In addition, the quality of the weld seam is analyzed in real time immediately upon creation of the weld seam, and the process parameters are adjusted in order to improve the quality of the weld seam.

Description

technical field [0001] The invention relates to a method for joining two first and second parts made of the same material, in particular aluminum or high-strength steel, by forming a weld seam along an overlapping joint by means of a continuously emitted machining beam. A workpiece, or a method of joining different metal materials into a workpiece. Improves weld quality by filling gaps formed at overlapping joints between workpieces. Furthermore, the invention relates to a device for joining workpieces by forming weld seams along overlapping joints. Background technique [0002] During welding with a processing beam, for example by means of a laser, a molten pool is produced at the point where the processing beam contacts the workpieces to be joined. The shape (width, length) of the weld pool is determined by the speed of the relative movement between the machining jet and the workpiece, the properties of the machining jet and largely by the workpieces to be joined. A uni...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/03B23K26/04B23K26/046B23K26/242B23K26/082B23K26/044
CPCB23K26/032B23K26/046B23K26/048B23K26/044B23K26/082B23K26/242B23K2103/04B23K2103/10B23K2103/18B23K31/125
Inventor 弗洛里安·艾伯特彼得·菲克斯默伊戈尔·哈舒克亚历山大·米勒普拉温·谢维
Owner SCANSONIC MI
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