Abstract: A server network includes a central server and store servers. Each of the store servers is connected to one or more receipt printers. The central server selects one or more store servers to which image data of an image to be added to a receipt are distributed, and transmits the image data along with condition data to the selected store servers, which are then distributed to receipt printers. Receipt printers that received the image data print one or more receipts with the additional image upon the conditions being met, and transmit content data of each printed receipt to the corresponding store server. Each of the selected store servers generates a receipt issue log based on the content data, and transmits receipt issue logs that accumulated therein to the central server. The central server calculates an amount of exposure of the additional image based on receipt issue logs.

Abstract: A method of welding an overlapped portion according to the present invention in which a plurality of steel sheet members are joined at an overlapped portion, and at least one of the plurality of steel sheet members contains martensite, includes: forming a spot-welded portion having a nugget in the overlapped portion; and emitting a laser beam to form a melted and solidified portion crossing an end of the nugget and located between the nugget and a position externally spaced apart from an end of the nugget by not less than 3 mm, this melted and solidified portion being formed in the steel sheet member containing the martensite so as to have a depth of not less than 50% of the thickness of the steel sheet member containing the martensite at a position externally spaced apart from the end of the nugget by 1 mm.

Abstract: The present invention provides an overlap-welded member in which an overlapped portion including plural steel sheet members is joined at a spot-welded portion, in which at least one of the plural steel sheet members contains martensite, and the spot-welded portion includes: a nugget formed through spot welding; a heat-affected zone formed in the vicinity of the nugget; the softest zone having the lowest Vickers hardness in the heat-affected zone; and a tempered area formed between a central portion of the nugget and the softest zone and made out of tempered martensite having Vickers hardness of not more than 120% in the case where Vickers hardness of the softest zone is 100%.

Abstract: A networked computer system distributes content that is to be added to receipts by receipt issuing devices. The system includes a central server, first and second store servers communicating with the central server over a first network, first receipt issuing devices communicating with the first store server over a first local network, and second receipt issuing devices communicating with the second store server over a second local network. A first control plane is implemented in the central server to control whether or not the content is to be distributed to the first store server and whether or not the content is to be distributed to the second store server. A second control plane is implemented in the first and second store servers to control whether or not the content is to be distributed to the first and second receipt issuing devices, respectively.

Abstract: A server network includes a central server and a plurality of store servers. Each of the store servers is connected to one or more receipt printers. The central server selects one or more store servers to which image data of an image to be added to a receipt are distributed, and transmits the image data along with condition data to the selected store servers, which are then distributed to receipt printers. Receipt printers that received the image data print one or more receipts with the additional image upon the conditions being met, and transmit content data of each printed receipt to the corresponding store server. Each of the selected store servers generates a receipt issue log based on the content data, and transmits receipt issue logs that accumulated therein to the central server. The central server calculates an amount of exposure of the additional image based on receipt issue logs.

Abstract: A networked computer system distributes content that is to be added to receipts by receipt issuing devices. The system includes a central server, first and second store servers communicating with the central server over a first network, first receipt issuing devices communicating with the first store server over a first local network, and second receipt issuing devices communicating with the second store server over a second local network. A first control plane is implemented in the central server to control whether or not the content is to be distributed to the first store server and whether or not the content is to be distributed to the second store server. A second control plane is implemented in the first and second store servers to control whether or not the content is to be distributed to the first and second receipt issuing devices, respectively.

Abstract: By obtaining a spot-welded joint being a spot-welded joint formed by overlapping a plurality of pieces of steel plates (1A, 1B) and performing spot welding on the steel plates, including a high-strength steel plate whose tensile strength is 750 (MPa) to 2500 (MPa), being at least one piece of steel plate out of the plurality of pieces of steel plates, in which a carbon equivalent Ceq of the high-strength steel plate is 0.20 mass % to 0.55 mass %, and ten or more of iron-based carbides in each of which a length of a longest portion is 0.1 (?m) or more exist in a square region 103 within a heat-affected zone 4 of a cross section that passes through a center of a welding mark, and is cut along a plate thickness direction of the steel plates (1A, 1B), a cross tensile strength of the spot-welded joint to be formed is improved.

Abstract: A server network includes a central server and a plurality of store servers. Each of the store servers is connected to one or more receipt printers. The central server selects one or more store servers to which image data of an image to be added to a receipt are distributed, and transmits the image data along with condition data to the selected store servers, which are then distributed to receipt printers. Receipt printers that received the image data print one or more receipts with the additional image upon the conditions being met, and transmit content data of each printed receipt to the corresponding store server. Each of the selected store servers generates a receipt issue log based on the content data, and transmits receipt issue logs that accumulated therein to the central server. The central server calculates an amount of exposure of the additional image based on receipt issue logs.

Abstract: A content distribution server according to an embodiment includes a storage unit that stores: store codes corresponding to stores that are targets of distribution, device codes corresponding to receipt issuing devices in each respective store, print specifications corresponding to each receipt issuing device, and additional information items, each including print specifications required for printing the respective additional information. A control unit identifies at least one additional information item for transmitting to one or more of the stores having one or more receipt issuing devices with corresponding print specifications that match the print specifications of the at least one additional information item.

Abstract: Provided is a spot welding machine able to perform spot welding in which the desired nugget size is formed while suppressing spatter even if the strengths or thicknesses of the metal sheets change, the machine comprising: a pair of electrode tips, a pair of pressing members arranged around the tips, a first power supply, first and second drive mechanisms, and a pressing force control part, wherein the tips and the pressing members are respectively arranged facing each other so as to be able to sandwich a set of sheets between them, the first drive mechanisms give pressing forces pressing the tips against the sheets, the second drive mechanisms give pressing forces pressing the pressing members against the sheets, and the control part independently controls the pressing forces given by the first and second drive mechanisms.

Abstract: A spot welded joint in which a high CTS is obtained even if including one or more high strength steel sheets and a method of welding of the same, that is, a spot welded joint 1 including a plurality of steel sheets, wherein one or more steel sheets is a tensile strength 750 to 2500 MPa high strength steel sheet and, at a cross-section in the sheet thickness direction of the steel sheets, when defining superposed surfaces of a high strength steel sheet S1 arranged at an outermost side and another steel sheet 1B as the “plane A” and defining a plane passing through a point of one-half of a distance between a nugget end position E of a high strength steel sheet S1 side on the line L1 in the sheet thickness direction and a crossing point O of the plane A and the line L1 and parallel to the plane A as the “plane B”, at a square area SA of sides of 30 ?m centered about a crossing point X of a line L2, which is separated by 250 ?m to the heat affected zone side from a tangent at any position on a nugget end line NEL

Abstract: A spot welding method is a method of performing spot welding to obtain a spot welded joint, the method including a spot welding with two-stage welding, setting a ratio (I2/I1) of a current I2 of a second welding process to a current I1 of a first welding process to from 0.5 to 0.8, setting a time tc of a cooling process within a range of from 0.8×tmin to 2.5×tmin wherein tmin is calculated using the equation (0.2×H2) according to a sheet thickness H of the steel sheets, setting an welding time t2 of a second welding process within a range of from 0.7×tmin to 2.5×tmin, and setting a pressure from the cooling process onward to greater than a pressure until the first welding process.

Abstract: A content distribution server according to an embodiment includes a storage unit that stores: store codes corresponding to stores that are targets of distribution, device codes corresponding to receipt issuing devices in each respective store, print specifications corresponding to each receipt issuing device, and additional information items, each including print specifications required for printing the respective additional information. A control unit identifies at least one additional information item for transmitting to one or more of the stores having one or more receipt issuing devices with corresponding print specifications that match the print specifications of the at least one additional information item.

Abstract: A lap welding method of a steel sheet includes spot welding in a state in which the flange portion of a second steel sheet member having the flange portion and a standing wall portion is overlapped with the first steel sheet member, thereby forming a nugget between a first steel sheet member and a flange portion; and, after the spot welding, laser welding a region between an R stop of the standing wall portion and the nugget, thereby forming a weld bead, and, in the weld bead, a length dimension is equal to or longer than a diameter of the nugget, and a width dimension is 0.5 to 3.0 mm.

Abstract: The present invention is a friction welding method for friction welding of metal members characterized by starting friction welding in a state inserting an insert material between surfaces of the metal members facing each other, wherein the insert material consists of a metal having a melting point (centigrade temperature) of 60 to 80% of the melting point (centigrade temperature) of the metal members, melting the insert material, and pushing the melted insert material out from between the pair of metal members. Due to this, the adverse effects due to high temperature heating like in the past are eliminated while a quality of joint equal to or better than the past is obtained in a short time period.

Abstract: Provided is a mechanical joining apparatus enabling reduction of breakage of the area around a rivet of a joint obtained by riveting, the apparatus comprising a punch and die, blank holder, first power device, second power device and cooling device, wherein the first power device is configured to start supply of current through the holder and die so as to raise the temperature of the sheets before the punch drives in the rivet, the second power device is configured to start supply of current through the punch and die so as to supply current through and heat treat the rivet after the punch drives in the rivet, and the cooling device is connected to the punch and is configured to cool the rivet after the rivet is heat treated.

Abstract: Provided is a mechanical joining apparatus enabling stable riveting when joining metal sheets even when the sheets are large in deformation resistance, the apparatus comprising a punch and die, blank holder and power device, wherein the punch and die are arranged facing each other, the holder is configured by an electrode material able to push against and electrically heat the sheets by one end of the holder, the punch is comprised of a material able to drive in a rivet, the die is comprised of an electrode material able to support and electrically heat the sheets, and the power device is configured to start supply of current through the holder and die so as to raise the temperature of the sheets at the same time as the start of driving in of the rivet and to continue to supply current until the end of driving in of the rivet.

Abstract: An automobile structural member (2) has a closed transverse section shape constituted with a first composing member (12) and a second composing member (13). The first composing member (12) has a vertical wall portion (12c), a bent portion (12b), and an inward flange (12a), and has a load transmission portion (20) formed in at least a part of a region being a region between the bent portion (12b) and the second composing member (13) and being a region of an extension of the vertical wall portion (12c) toward the second composing member (13) and which joins the bent portion (12b) and the second composing member (13). Thereby, a bending and crushing performance can be improved.

Abstract: A content distribution server according to an embodiment includes a storage unit that stores: store codes corresponding to stores that are targets of distribution, device codes corresponding to receipt issuing devices in each respective store, print specifications corresponding to each receipt issuing device, and additional information items, each including print specifications required for printing the respective additional information. A control unit identifies at least one additional information item for transmitting to one or more of the stores having one or more receipt issuing devices with corresponding print specifications that match the print specifications of the at least one additional information item.

Abstract: A server network includes a central server and a plurality of store servers. Each of the store servers is connected to one or more receipt printers. The central server selects one or more store servers to which image data of an image to be added to a receipt are distributed, and transmits the image data along with condition data to the selected store servers, which are then distributed to receipt printers. Receipt printers that received the image data print one or more receipts with the additional image upon the conditions being met, and transmit content data of each printed receipt to the corresponding store server. Each of the selected store servers generates a receipt issue log based on the content data, and transmits receipt issue logs that accumulated therein to the central server. The central server calculates an amount of exposure of the additional image based on receipt issue logs.