摘要:
A method of welding that realizes enhancements of airtightness and watertightness at weld area and a method of welding and method of friction stir welding that attain an enhancement of welding operation efficiency/speed. There is provided a method of welding including the first primary welding step of carrying out a friction stir welding on the abutting portion (J1) of metal members (1,1) from the surface (12) side of metal member (1) and the second primary welding step of carrying out a friction stir welding on the abutting portion (J1) from the reverse face (13) side of the member (1), wherein in the second primary welding step, the friction stir welding is performed while penetrating a stirring pin (B2) of rotation tool (B) in plasticized region (W1) formed in the first primary welding step.
摘要:
A method of welding that realizes enhancements of airtightness and watertightness at weld area and a method of welding and method of friction stir welding that attain an enhancement of welding operation efficiency/speed. There is provided a method of welding including the first primary welding step of carrying out a friction stir welding on the abutting portion (J1) of metal members (1,1) from the surface (12) side of metal member (1) and the second primary welding step of carrying out a friction stir welding on the abutting portion (J1) from the reverse face (13) side of the member (1), wherein in the second primary welding step, the friction stir welding is performed while penetrating a stirring pin (B2) of rotation tool (B) in plasticized region (W1) formed in the first primary welding step.
摘要:
A method of manufacturing a heat transfer plate (1) includes: an insertion process of inserting a heat medium pipe (16) in a concave groove (8) formed in a bottom face of a lid groove (6) open to an obverse (3) of a base member (2); a lid groove closing process of arranging a lid plate (10) in the lid groove (6); and a main joining process of moving a main joining rotation tool (20) along butt portions (V1, V2) between sidewalls (5a, 5b) of the lid groove (6) and side faces (13a, 13b) of the lid plate (10), wherein in the main joining process a plastic fluidizing material (Q), where the base member (2) and the lid plate (10) are fluidized due to frictional heat, is made to flow in air gap portions (P1, P2) formed around the heat medium pipe (16).
摘要:
A method of welding includes a first primary welding step of carrying out a friction stir welding on the abutting portion of metal members from a first surface of a metal member. In a second primary welding step, the abutting portion is friction stir welded from the reverse face side of the member, while penetrating a stirring pin of rotation tool in a plasticized region formed in the first primary welding step.
摘要:
A liquid cooling jacket (J1) transmits heat generated by a CPU (101) which is installed at a predetermined position to coolant supplied from an external heat transmission fluid supply means and flowing inside of the liquid cooling jacket. The liquid cooling jacket includes a first flow passage (A1) on a side of the heat transmission fluid supply means, a second flow passage group (B1) including a plurality of second flow passages (B1a) branched from the first flow passage (A1), and a third flow passage (C1) installed at downstream side of the plurality of the second flow passages (B1a), and collecting the plurality of the second flow passages (B1a), wherein the CPU (101) mainly dissipates the heat to the second flow passage group (B1).
摘要:
In a device for opening and closing a side plate of a loading box on a motor truck under no-load condition wherein the side plate is outwardly openably hinged at its bottom edge to the outer side edge of the floor plate of the loading box, an actuating or interlocking mechanism is provided which comprises an upper actuating connecting rod and a lower actuating connecting rod. The upper actuating connecting rod has the upper end thereof articulated to the outer surface of the side plate and the lower end thereof articulated to the upper end of the lower actuating connecting rod, the lower end of which is articulated to a lower portion of a support member downwardly projected from the underside of the floor plate. Thus, the mechanism is twice-foldable. The actuating or interlocking mechanism may be resiliently pulled by a spring having the base thereof connected to the underside of the floor plate.
摘要:
There is provide a manufacturing method of a fin-integrated substrate capable of producing by simple process a fin-integrated substrate with heat radiating fins at fine pitches by a processing method in which warpage of a metal base plate and corrugation (wavy shape) of the heat radiating fins are suppressed. There is provided a manufacturing method of a fin-integrated substrate in which bonding of the metal circuit board to the ceramic substrate is performed by a molten metal bonding method, and formation of the plurality of heat radiating fins at a cut part that is a part of the metal base plate is performed by fixing by a jig to apply a tensile stress on a surface of the cut part where the heat radiating fins are to be formed, and performing grooving processing of forming a plurality of grooves by moving a multi-cutter composed of a plurality of stacked disc-shaped cutters, on the surface to which the tensile stress is applied, while rotating the multi-cutter.
摘要:
The present invention provides an economic rotation tool for joining a pair of metal members which form an inner corner by abutting the pair of metal members (1) each other, and a joining inner corner method using the same. The rotation tool for joining the pair of metal members which form an inner corner (1) by abutting the pair of metal members each other to perform friction stir welding on an inner corner portion formed by abutting a pair of metal members against each other comprising: a stirring pin (3) to be inserted into the inner corner portion; and a base block (2) supporting the stirring pin (3) and to be brought into contact with one and the other of the pair of metal members respectively, wherein the base block (2) includes: a body portion (4) having a taper shape; and a shoulder portion (5) formed detachably at a tip of the body portion, and the body portion (4) and the shoulder portion (5) are penetrated by the stirring pin (3).
摘要:
A method of manufacturing a heat transfer plate (1) includes: an insertion process of inserting a heat medium pipe (16) in a concave groove (8) formed in a bottom face of a lid groove (6) open to an obverse (3) of a base member (2); a lid groove closing process of arranging a lid plate (10) in the lid groove (6); and a main joining process of moving a main joining rotation tool (20) along butt portions (V1, V2) between sidewalls (5a, 5b) of the lid groove (6) and side faces (13a, 13b) of the lid plate (10), wherein in the main joining process a plastic fluidizing material (Q), where the base member (2) and the lid plate (10) are fluidized due to frictional heat, is made to flow in air gap portions (P1, P2) formed around the heat medium pipe (16).
摘要:
A method of welding that realizes enhancements of airtightness and watertightness at weld area: and a method of welding and method of friction stir welding that attain an enhancement of welding operation efficiency/speed. There is provided a method of welding comprising the first primary welding step of carrying out a friction stir welding on the abutting portion (J1) of metal members (1,1) from the surface (12) side of metal member (1) and the second primary welding step of carrying out a friction stir welding on the abutting portion (J1) from the reverse face (13) side of the member (1), wherein in the second primary welding step, the friction stir welding is performed while penetrating a stirring pin (B2) of rotation tool (B) in plasticized region (W1) formed in the first primary welding step.