A method of bonding a connector to a first object includes providing the connector, the connector being separate from the first object and including a thermoplastic material; arranging the first object and the connector relative to one another so that the connector reaches from a proximal side of the object through a first opening in the object; generating and applying vibrations and mechanical pressure to the connector until a flow portion of the thermoplastic material is liquefied and caused to flow sideways radially into an open space; and removing the source of the vibrations and causing the liquefied thermoplastic material to re-solidify, resulting in the connector with a foot portion, a head portion, and a shaft portion between the foot portion and the head portion. The shaft portion extends along an axis through the first opening, and secures the connector to the first object.

A process for room temperature substrate bonding employs a first substrate substantially transparent to a laser wavelength is selected. A second substrate for mating at an interface with the first substrate is then selected. A transmissivity change at the interface is created and the first and second substrates are mated at the interface. The first substrate is then irradiated with a laser of the transparency wavelength substantially focused at the interface and a localized high temperature at the interface from energy supplied by the laser is created. The first and second substrates immediately adjacent the interface are softened with diffusion across the interface to fuse the substrates.

A method for sensing intensity of laser light in a simultaneous laser welding system includes placing a smart part in a weld area. The smart part includes at least a laser light intensity sensor for sensing laser light directed at it. Laser light intensity is sensed by the laser light intensity sensor of the smart part which provides an output signal indicative thereof to a controller.

A narrow waveguide homogenizes laser light traveling from a laser light source of a laser bank through a plurality of laser delivery bundles that include at least a fiber optic bundle leg to weld a plurality of work pieces along a weld line that is narrower than the width of the fiber optic bundle leg. The narrow waveguide has a portion associated with each fiber optic bundle leg that is narrower than the fiber optic bundle leg with which that portion of the waveguide is associated. A reflective bounce plane diverts laser light of the fiber optic bundle leg that does not travel through the narrow waveguide.

A medical packaging material, in particular a pharmaceutical packaging material, comprising a first thermoplastic plastic component body consisting of a first material, a second thermoplastic plastic component body consisting of a second material, wherein between the first plastic component body and the second plastic component body at least one internal interface having a scattering effect is arranged that results preferably in an extended wavelength of radiated light.

A device comprises elements for measuring current, the elements being housed in a casing. The casing includes a first portion and a second portion made of plastic, welded to each other, which together define a housing for receiving the measuring elements. The first portion is opaque in order to absorb a laser beam for welding the portions, and the second portion is transparent in order to let the laser beam pass. The process for manufacturing the device includes a fitting step in which the measuring elements are fitted into the casing and an assembly step in which the portions of the casing are joined together using a laser welding process.

A lap shear test fixture and method of use to test the performance of the weld interface in welded thermoplastic composite parts such as infrared welded or resistive implant welded or adhesive bonded composite parts. The specimens to be tested are provided from production-ready parts with typical geometry. The test fixture has at least two aligned blocks with at least two lateral support blocks that operably hold the specimen including two welded substrates. The test is performed in compression-mode at a pre-determined crosshead speed until the maximum load produced by a universal testing machine makes the weld interface between the two thermoplastic substrates fail in shear mode.

In an example of a method of making a flowcell, an organic solid support including sidewalls and a top is provided. A bottom surface of the organic solid support adjacent to the sidewalls provides a laser bonding foot. In the method, the laser bonding foot is bonded to an inorganic solid support to form a channel having sidewalls and a top defined by the organic solid support.

A system for welding two parts to be joined made of thermoplastic synthetic materials along a weld seam by a laser operating with a laser beam having a beam direction within an operating field by a control method with control data corresponding to the weld-seam course to be produced, including a beam dimension in the region around its focus causing the welding, which is smaller in the joint plane than the target width of the weld seam to be produced, and is dependent upon the angle of incidence of the laser beam on the joint plane and/or upon the position of the focus relative to the joint plane, is displaced in a first movement component in a principal forward-feed direction along the track of the weld-seam to be produced, in a second, oscillating movement component superimposed over the former to cover the weld-seam width transversely to the principal forward-feed direction with an oscillation amplitude value, and is adjusted with a control method in its oscillation amplitude width in inverse dependence upon the beam dimension in the joint plane such that the width of the beam field covered by the laser beam in the transverse direction relative to the principal forward-feed direction corresponds to the target width of the weld seam.

Sensors incorporated within a laser channel detect laser light upconverted by a dopant. The dopant is located after a delivery end of a laser delivery optical fiber and upconverts laser light that has traveled from a laser light source from a laser bank through one of a plurality of laser channels through to a location after the delivery end of a laser delivery optical fiber. In some embodiments, the dopant is positioned at the delivery end of the laser delivery optical fiber. In other embodiments, the dopant is positioned within a dummy part or on a surface of at least a work piece.