A friction application device includes an application element which defines a rotational axis and which is movable by a moving device on a surface of a workpiece and in a relative movement with respect to the surface of the workpiece. At least one supporting tool is non-coaxial with the rotational axis and has an arcuate outer periphery in direct contact with the application element.

Electrical connection element having a first flat part made of a metallic substrate and a metallic contact layer applied to one surface of the substrate. A reliable coating is possible through the substrate being friction coated with the contact layer.

A pin comprising a conical body having a central axis and a cross-sectional area that decreases with distance from a first end to a second end. A coating applied to the conical body has a melting temperature that is lower than a melting temperature of the conical body. The coating melting temperature is lower than a friction temperature and the body melting temperature is higher than the friction temperature. The friction temperature is achieved at an interface of the pin and a component when the pin is forcibly positioned into the component to repair a defect. The coating comprises a material having a first tensile strength value of a bond formed between the conical body and the component in response to softening and rehardening of the coating.

An apparatus for forming a friction weld, the apparatus comprising: a support arrangement; a holding member, which is supported by the supporting ar-rangement, and which may be driven to rotate with respect thereto, or move with respect thereto along an arcuate path;a consumable element having a first joining face, the consumable element being mounted in a mounting location on the holding member so that the first joining face is exposed, wherein the consumable element is rotatable with respect to the holding member about a first centre of rotation, and wherein when the holding member is driven to rotate or move with respect to the support arrangement, the first centre of rotation travels in an orbital motion with respect to the support arrangement; and at least a first alignment arrangement, positioned to hold a first workpiece in place so that an attachment face of the first workpiece is aligned with the first joining face of the consumable element.

A cast cylinder block for an internal combustion engine includes a first and a second cylinder bore and a shared bore wall. The first cylinder bore includes a first bore wall and the second cylinder bore includes a second bore wall. The shared cylinder bore wall includes a first portion and a second portion. A portion of the first bore wall combines with a portion of the second bore wall to form the shared cylinder bore wall. The first portion of the shared bore wall is an as-cast portion. The second portion of the shared bore wall is a metal matrix composite.

A piston for an internal combustion engine has a surface treatment portion on a piston base material at a piston crown surface, the surface treatment portion including, along the direction of depth from the surface side, a first layer that is comprised of a layer of a first metal or a layer containing the first metal, a second layer that contains both a second metal containing oxygen or an oxide of the second metal and a low-thermal-conductivity material, and a third layer that is comprised of a mixture of a third metal and the low-thermal-conductivity material.

Solid-state joining of preformed features, such as bosses, flanges, gaskets, centralizers and other features to substrates or cast parts by a solid-state MELD additive manufacturing process is disclosed. Joining can be between same or different materials using same, similar or dissimilar filler material than the materials of the feature and the part that need to be joined.

A rotating tool system attachment on the spindle of a computer numerical control (CNC) machine includes a rotating assembly mounted on a static assembly. The rotating assembly provides a continuous supply of a wire material for deposition on a substrate during an additive manufacturing process. The rotating assembly includes a material supply housing a feedstock of wire mounted on a rotating spindle and a wire feeder configured to draw the wire from the wire supply and provide the wire for application during the additive manufacturing process. The tool system can be attached to the spindle of CNC machine to provide additive manufacturing capabilities to the CNC machine.

Concave part is formed in a crown surface of the top of piston made of an aluminum alloy. This concave part is filled with mixed powder constituted of zirconia powder as a filler material and pure aluminum powder as a bonding material. Solid cylindrical rotary implement is brought into contact with concave part filled with mixed powder, and then pressed against piston under load while being rotated. Mixed powder is softened by frictional heat with rotary implement, whereby mixed powder is bound in a solid phase to concave part to form low thermal conductive part. With this, the bonding strength of low thermal conductive part to the crown surface of the top of the piston is improved.

An illustrative example embodiment of a method of making a rotary magnetic drive member includes establishing a helical magnet on a rod using an additive manufacturing process.