A mat unit is formed from at least two layers ultrasonically welded together. Each layer is individually formed from non-vinyl nontoxic thermoplastic elastomer (TPE) material. In ultrasonically joining the two layers together, there is no need to use additional materials, such as adhesive (i.e., chemical attachment) or stitched thread (i.e., mechanical attachment) to form the joint/weld point. Once formed from the two layers, the mat unit has four quadrants and a plurality of longitudinal ribs integrally formed in the first layer positioned in the first and third quadrants, and a plurality of transverse ribs integrally formed in the first layer positioned in the second and fourth quadrants. Additionally, there are a plurality of longitudinal ribs integrally formed in the second layer positioned in the second and fourth quadrants, and a plurality of transverse ribs integrally formed in the second layer positioned in the first and third quadrants.

A rotor for an electric machine includes a rotor assembly having an outer surface and including a plurality of poles with permanent magnets. A solid layer is formed on the outer surface of the rotor assembly and has an outer surface with a first coefficient of friction that is lower than a second coefficient of friction of the outer surface of the rotor assembly. The rotor includes an outer sleeve. The rotor assembly is press-fit into the outer sleeve.

A fastening apparatus includes a fastening device (1, 3) that heats in a non-contacting state, and then applies pressure to, a shaft part (11b) or shaft body (111) while it is inserted through the through holes (W10, W20) of workpieces (W1, W2), thereby forming at least a second head part (11c) of a fastener (11). The fastening device (1, 3) includes: a fastening die (15) that forms the second head part (11c); and a shaft-part pressure-applying device (9) that applies the pressure to the fastening die (15). A determining device (5) determines whether the fastener (11) is defective or not by calculating a load curve defined by the time and the load during which the pressure was applied and then determining whether an amount of change per unit of time in the load curve after a reference load has been exceeded is within a range of a predetermined reference value.

Methods of producing an assembly, e.g., a bearing assembly, for a vehicle, with reduced thermal expansion in a linear direction as well as methods for minimizing linear thermal expansion in an assembly, are provided. The assembly has at least two components with substantially different linear coefficients of thermal expansion (CLTEs). The assembly has a lightweight planar metal component (e.g., a housing) with a first CLTE, a second component (e.g., a bearing component) having a second CLTE, and a polymeric composite with a third CLTE. The first CLTE is greater than the second CLTE. The third CLTE is less than or equal to the second CLTE, so that the polymeric composite structure attached to the first planar metal component reduces thermal expansion of the first planar metal component in at least one linear direction and minimizes separation of the second surface of the first planar metal component from the second component.

Methods of producing an assembly, e.g., a bearing assembly, for a vehicle, with reduced thermal expansion in a linear direction as well as methods for minimizing linear thermal expansion in an assembly, are provided. The assembly has at least two components with substantially different linear coefficients of thermal expansion (CLTEs). The assembly has a lightweight planar metal component (e.g., a housing) with a first CLTE, a second component (e.g., a bearing component) having a second CLTE, and a polymeric composite with a third CLTE. The first CLTE is greater than the second CLTE. The third CLTE is less than or equal to the second CLTE, so that the polymeric composite structure attached to the first planar metal component reduces thermal expansion of the first planar metal component in at least one linear direction and minimizes separation of the second surface of the first planar metal component from the second component.

There is disclosed a method of applying activatable material to a member of an article of manufacture such as an automotive vehicle. According to the method, the activatable material is provided to an applicator followed by applying the activatable material to the member wherein the activatable material is attached by way of a mechanical interlock via one or more through-holes.

A novel design of a polymer retention hub created having an innovative feature used to permanently attach a thin wall nozzle core without use of adhesives or ancillary parts to form a conjunct nozzle. Additional polymer in the correct amount is molded into a polymer retention hub in close proximity to a location where a mechanical lock must be formed to join the two components together. The inventive design of the polymer retention hub is configured to produce an enclosed cavity with the strength required for separation of a nozzle core from a standard taper.

The invention relates to a process for the production of multishell composite-material components, comprising the following steps: a) insertion of at least one first component (1) into an injection mold and optionally subjecting the first component (1) to a forming process, b) injection of at least one fixing element (4) onto at least one side (5) of the first component (1), c) insertion of at least one second component (2) into the injection mold and optionally subjecting the second component (2) to a forming process, d) bonding of the first component (1) to the second component (2) by way of the side (5) which has the fixing element (4), where a matrix material (6) is injected through the second component (2) onto and/or into the fixing element (4).

An imaging medical device includes a shaft main body portion having an image acquiring lumen and a guide wire lumen. The shaft main body portion includes a first shaft proximal portion in which the image acquiring lumen is disposed, and a second shaft proximal portion in which the guide wire lumen is disposed, with the two being bifurcated. First and second hub portions are interlocked with the first and second shaft proximal portions respectively, and a transducer unit is fixed to a drive shaft. Reference line X represents the axis line of the shaft main body portion, θ1 represents the inclination of the central axis of the first hub portion relative to the reference line, θ2 represents the inclination of the central axis of the second hub portion relative to the reference line, and the relationship of |θ1|>|θ2| is satisfied.

An imaging medical device includes a shaft main body portion having an image acquiring lumen and a guide wire lumen. The shaft main body portion includes a first shaft proximal portion in which the image acquiring lumen is disposed, and a second shaft proximal portion in which the guide wire lumen is disposed, with the two being bifurcated. First and second hub portions are interlocked with the first and second shaft proximal portions respectively, and a transducer unit is fixed to a drive shaft. Reference line X represents the axis line of the shaft main body portion, θ1 represents the inclination of the central axis of the first hub portion relative to the reference line, θ2 represents the inclination of the central axis of the second hub portion relative to the reference line, and the relationship of |θ1|>|θ2| is satisfied.