Device for laser transmission welding and method for laser transmission welding

A technology of laser transmission welding and laser transparency, which is applied in the field of composite parts, can solve the problems such as the delay of disconnected parts, and achieve the effect of short welding cycle

Active Publication Date: 2015-08-05
FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology allows for better control over how much pressure needs to be applied when weldings are being made without having to set up an extra part around them. It also helps reduce unwanted vibrations caused by other parts inside the machine while still providing precise results. Additionally, there're no longer any space between certain components within these machines due to their separation design.

Problems solved by technology

Layton crystal powders were previously proposed as potential substances for improving the wettable characteristics of rubber compositions when they could serve as fillers in laminated products like sheets. These techniques involve adding certain compounds called phosphorus blezants to improve their ability to wet surfaces while maintaining good mechanical strength. Additionally, some processes involving burning off organics within the sheet require increasing power levels and cooling capabilities, leading to longer exposure periods before complete solidification occurs. Existing solutions include imparting fasteners or incorporation of toners inside the sheet.

Method used

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  • Device for laser transmission welding and method for laser transmission welding
  • Device for laser transmission welding and method for laser transmission welding

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Embodiment Construction

[0056] Embodiments of the invention are described below with reference to welding a multilayer membrane comprising a tie layer to a rigid filler body, without limiting the invention thereto.

[0057] figure 1 An example of a welding setup schematically represented in , comprises a rigid plastic part 100, a multilayer film 200 arranged on the rigid plastic part 100, and a processing head 10 for laser transmission welding of the device according to the invention. In this example, the multilayer film 200 and the rigid plastic part 100 are arranged one above the other on a machined surface (not shown).

[0058] The processing head 10 has a processing side 12 which is positioned at figure 1 The center faces the multi-layer film 200 disposed above the rigid plastic part 100 . The processing side 12 is formed by the free end of a hollow cylindrical outlet shaft 14 . In this example, the outlet shaft 14 is formed from polytetrafluoroethylene (PTFE). In this outlet shaft 14 , balls 18

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Abstract

A device for the laser transmission welding of two plastic assembly parts is provided, wherein at least one of the plastic assembly parts contains an absorber for laser light, comprising a processing head with a processing side, with a processing-side discharge shaft for at least one laser beam and with a laser-transparent pressing means for pressing together the plastic assembly parts, wherein the laser-transparent pressing means is guided decoupled from the processing head in the discharge shaft. Furthermore, a method for producing a welded joint between two plastic assembly parts by laser transmission welding is specified.

Description

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Claims

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Application Information

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Owner FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
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