A method of completing a fiber composite part includes the steps of providing a pre-manufactured fiber composite part, the fiber composite part including a structure of fibers embedded in a matrix of a resin, the resin being hardened; inspecting the composite part for portions of the structure of fibers that are insufficiently impregnated by the hardened resin; applying a preparation of a hardenable material to a surface portion where an identified structure portion of the structure of fibers that is insufficiently impregnated is exposed; applying mechanical vibration to the preparation applied to the surface portion to cause material of the preparation to impregnate the structure portion in a flowable state, and causing the material to solidify.

A method, for repairing a discrepant weld in a workpiece arrangement including at least two workpieces, comprising positioning a mechanical intermediary adjacent the discrepant weld and inserting the intermediary through the discrepant weld and into at least a distal workpiece of the two workpieces, wherein upon insertion, a proximate surface of the intermediary is exposed at a proximate side of the workpiece arrangement. The method further includes delivering weld energy to the intermediary. The intermediary is configured, and the weld energy provided, so that energy passes through the intermediary in a pre-determined manner. Energy passing through the intermediary in the pre-determined manner generates heat in material of the workpieces causing the material to melt at an arrangement interface. The method further comprises allowing or causing the material melted to cool, wherein the melted material, when cooled, forms and/or strengthens a robust joint connecting the workpieces.

Method of manufacturing a microfluidic device comprising an inflexible polymeric substrate, one or more flexible polymeric substrate(s) and one or more microfluidic channel(s) enclosed between the substrates comprising a) providing a master form including rim protrusions defining an enveloping shape for the microfluidic channel(s) to be produced and enclosed between the substrates, b) placing one or more flexible polymeric substrate(s) each having a layer thickness of less than 800 m onto the master form, wherein one flexible polymeric substrate is in contact with the rim protrusions of the master form, c) placing an inflexible polymeric substrate with a layer thickness of equal to or more than 800 m onto the flexible polymeric substrate(s), and d) ultrasonically welding the one or more flexible polymeric substrate(s) and the inflexible polymeric substrate at the rim protrusions. By the inventive method microfluidic devices via ultrasonic welding without using energy directors can be obtained.

An ultrasonic detection method, an ultrasonic repair method, and an ultrasonic device are disclosed. The ultrasonic detection method includes: sending a piece of first ultrasonic information to an encapsulation layer of the display panel; receiving a piece of second ultrasonic information fed back from the encapsulation layer of the display panel, and analyzing whether the encapsulation layer of the display panel has a crack of a preset condition according to the second ultrasonic information; if the encapsulation layer of the dis-play panel does not have a crack of the preset condition, sending the display panel to a next procedure; if a crack of preset condition is found in the encapsulation layer of the display panel, performing a subsequent preset operation according to a test result and a preset rule.

Provided is a heating device including: a heating unit that heats a laminate which includes a plurality of sheet-like composite materials including reinforced fiber and thermoplastic resin, and heats, via a first contact surface disposed in contact with the laminate, the thermoplastic resin included in the laminate being in contact with the first contact surface to a softening temperature or higher; a cooling unit that cools, via a second contact surface disposed in contact with the laminate, the thermoplastic resin included in the laminate located outside of the second contact surface to a temperature lower than the softening temperature; and a pressing unit that applies a predetermined pressure to the laminate via the first contact surface and the second contact surface, the second contact surface being disposed so as to surround the first contact surface.

An embossing method for floor tiles makes thermoplastic polymer material in a floor tile to be embossed be converted into a viscous flow state by an ultrasonic embossing device, and embosses a floor tile modeling and a floor tile pattern on the floor tile to be embossed at the same time, such that the floor tile modeling and the floor tile pattern are not prone to rebound after being formed by embossing, stability of embossing of the edge of the floor tile is greatly improved, and yield rate of the floor tile increases. Additionally, the ultrasonic embossing device in the present application can further configure an ultrasonic welding head as a first welding head or a second welding head according to the floor tile modeling and the floor tile pattern, thereby meeting many types of different requirements for embossing patterns and reducing development cost of production lines.

A method of creating projections in a substrate is presented. A first device is provided with an outer surface defining recesses, where each recess has a first portion proximate the outer surface with a first perimeter and first depth and a second portion distal the outer surface with a second perimeter and second depth. The first perimeter is larger than the second perimeter and the first depth is less than the second depth. The first portion of the recesses substantially surrounds the second portion of the recesses. The method also includes forming a nip between a source of vibration energy and the outer surface and conveying the substrate through the nip to create precursor projections. The method also includes heating portions of the precursor projections and applying pressure to the heated portions to flatten the portions and increase a perimeter of the portions to form the projections.

Methods for fabricating a resin object are provided. In embodiments. such a method comprises irradiating a curable composite with a focal spot of a focused ultrasound beam. the curable composite comprising a porous material having a solid matrix defining pores distributed throughout the solid matrix and a curable composition comprising prepolymers filling the pores. to form at least one cured region of polymer within the curable composite so as to provide a resin object comprising an interpenetrating network comprising the solid matrix of the porous material entangled with the polymer of the at least one cured region.