A method for manufacturing a joint structure formed by joining a first plate-shaped member and a second plate-shaped member having a shape that is longer in a longitudinal direction than in a lateral direction includes overlapping the first plate-shaped member and the second plate-shaped member, after the overlapping, joining each of both edge portions of the second plate-shaped member by forming a weld metal along the longitudinal direction to the first plate-shaped member. The weld metal extends further outward in the lateral direction than the edge portions of the second plate-shaped member, in which the weld metal is formed by a hybrid welding in which a laser is added as a heat source during arc welding such that the weld metal extends around both of the edge portions of the second plate-shaped member along the longitudinal direction.

A method for manufacturing a joint structure formed by joining a first plate-shaped member and a second plate-shaped member having a shape that is longer in a longitudinal direction than in a lateral direction includes overlapping the first plate-shaped member and the second plate-shaped member, after the overlapping, joining each of both edge portions of the second plate-shaped member by forming a weld metal along the longitudinal direction to the first plate-shaped member. The weld metal extends further outward in the lateral direction than the edge portions of the second plate-shaped member, in which the weld metal is formed by a hybrid welding in which a laser is added as a heat source during arc welding such that the weld metal extends around both of the edge portions of the second plate-shaped member along the longitudinal direction.

A joint structure is formed by joining a first plate-shaped member made of steel and a second plate-shaped member made of steel that is overlapped on the first plate-shaped member and that is formed in a long shape. A surface of the first plate-shaped member and both edge portions of the second plate-shaped member along a longitudinal direction are joined by a weld metal.

A method of fabricating a refrigerator cabinet or door includes forming a wrapper and an inner liner. The method further includes forming a vacuum insulated core comprising a permeable core material that is disposed inside an impermeable envelope. A sheet of prefabricated compressible foam material is positioned between the vacuum insulated core between the inner door liner and/or the door wrapper. The prefabricated compressible foam material may be cut from a sheet of foam having substantially uniform thickness prior to fabrication of the refrigerator door. The foam compresses to accommodate differences in spacing between the vacuum insulated core and the door wrapper and/or the door liner.

A workpiece support includes a rotating shaft, a second support, a first support, and an air supplier. The rotating shaft is configured to support a workpiece at the leading end portion. The second support supports the rotating shaft rotatably about a first axis of the rotating shaft. The first support is provided between a tool and the second support along the first axis and has a through hole into which a guide bushing unit is configured to be inserted and into which the leading end portion of the rotating shaft is configured to be inserted. The guide bushing unit is configured to support the workpiece when the guide bushing unit is in the through hole. An ejection opening is provided on an inner circumferential surface of the through hole. The air supplier is configured to supply air to the first support via the ejection opening.

A workpiece support includes a rotating shaft, a second support, a first support, and an air supplier. The rotating shaft is configured to support a workpiece at the leading end portion. The second support supports the rotating shaft rotatably about a first axis of the rotating shaft. The first support is provided between a tool and the second support along the first axis and has a through hole into which a guide bushing unit is configured to be inserted and into which the leading end portion of the rotating shaft is configured to be inserted. The guide bushing unit is configured to support the workpiece when the guide bushing unit is in the through hole. An ejection opening is provided on an inner circumferential surface of the through hole. The air supplier is configured to supply air to the first support via the ejection opening.