B21D41/04

Nut integrated with bracket and method of manufacturing the same

A nut integrated with a bracket and a method of manufacturing the same is provided. The method includes a pre-drawing operation that forms a reference aperture and a processing cross section in the plate material supplied between the punch and the die, forming a beading portion and piercing a center of the beading portion. A forging operation forms a pipe portion having a tube shape and processes an exterior circumferential surface of the pipe portion. A precision forging process adjusts dimensions of the pipe portion formed in the tube shape, forms a protruding end that extends on a tip surface of the pipe portion and compresses the pipe portion to remove residual burrs on a surface. A post-processing operation cuts the processing cross section to a final product shape, and forms a threaded tap on an interior circumferential surface of the pipe portion.

Method of manufacturing tooth-shaped component, and tooth-shaped component

A method of manufacturing a tooth-shaped component including a process of draw-forming a workpiece so as to obtain a cylindrical container, which has a bottom surface portion and a side surface portion; a diameter-reducing process of reducing the diameter of a particular part in which a tooth tip portion is to be formed in the side surface portion of the cylindrical container, so as to increase the thickness of a corner portion such that an external shape of the corner portion between the bottom surface portion and the side surface portion satisfies the following conditional expression (R+H)2t; and a tooth shape-forming process of forming the tooth tip portion in the particular part of the cylindrical container reduced in diameter in the diameter-reducing process, so as to obtain a tooth-shaped component which has the bottom surface portion, the side surface portion, and the tooth tip portion.

Method of manufacturing tooth-shaped component, and tooth-shaped component

A method of manufacturing a tooth-shaped component including a process of draw-forming a workpiece so as to obtain a cylindrical container, which has a bottom surface portion and a side surface portion; a diameter-reducing process of reducing the diameter of a particular part in which a tooth tip portion is to be formed in the side surface portion of the cylindrical container, so as to increase the thickness of a corner portion such that an external shape of the corner portion between the bottom surface portion and the side surface portion satisfies the following conditional expression (R+H)2t; and a tooth shape-forming process of forming the tooth tip portion in the particular part of the cylindrical container reduced in diameter in the diameter-reducing process, so as to obtain a tooth-shaped component which has the bottom surface portion, the side surface portion, and the tooth tip portion.

Process for preparing pipe sections of pipeline for mechanical press fit pipe joints
10795325 · 2020-10-06 ·

Processes and systems for preparing sections of pipeline pipe for machine processing to form pin and box ends for assembly into pipelines using mechanical press-fit pipe joints. The prepared pipe sections are prepared to be fully measured and documented during both manufacturing and assembly. Installed pipelines include pipeline data monitoring systems coupled to a pipeline data management center for receiving, archiving, and analysis of the data records to aid in administration, operation and management, and troubleshooting of pipelines.

Process for preparing pipe sections of pipeline for mechanical press fit pipe joints
10795325 · 2020-10-06 ·

Processes and systems for preparing sections of pipeline pipe for machine processing to form pin and box ends for assembly into pipelines using mechanical press-fit pipe joints. The prepared pipe sections are prepared to be fully measured and documented during both manufacturing and assembly. Installed pipelines include pipeline data monitoring systems coupled to a pipeline data management center for receiving, archiving, and analysis of the data records to aid in administration, operation and management, and troubleshooting of pipelines.

Rolling-swaging tool and method for closing opening of cylindrical member using same

A rolling-swaging tool for closing an opening of a cylindrical housing includes: a support shaft connected to a driving body; rotating shafts extending in directions orthogonal to the support shaft; and swaging portions, each of which being attached to each of the rotating shafts. The swaging portions have, an annular first swaging portion having a minimum thickness and a maximum outer diameter, a disk third swaging portion having a maximum thickness and a minimum outer diameter, and an annular second swaging portion having a thickness between the minimum thickness and the maximum thickness and an outer diameter between the maximum outer diameter and the minimum outer diameter. The tool also has a first annular inclined surface provided between the annular first swaging portion and the annular second swaging portion, and a second annular inclined surface provided between the annular second swaging portion and the disk third swaging portion.

Rolling-swaging tool and method for closing opening of cylindrical member using same

A rolling-swaging tool for closing an opening of a cylindrical housing includes: a support shaft connected to a driving body; rotating shafts extending in directions orthogonal to the support shaft; and swaging portions, each of which being attached to each of the rotating shafts. The swaging portions have, an annular first swaging portion having a minimum thickness and a maximum outer diameter, a disk third swaging portion having a maximum thickness and a minimum outer diameter, and an annular second swaging portion having a thickness between the minimum thickness and the maximum thickness and an outer diameter between the maximum outer diameter and the minimum outer diameter. The tool also has a first annular inclined surface provided between the annular first swaging portion and the annular second swaging portion, and a second annular inclined surface provided between the annular second swaging portion and the disk third swaging portion.

Apparatus and method for assembling, measuring, and monitoring integrity of mechanical pipe joints
10732579 · 2020-08-04 ·

Processes and systems for preparing pipe for machine processing to form pin and box ends for assembly into pipelines using mechanical press-fit pipe joints that are fully measured and documented during both manufacturing and assembly. Installed pipelines include pipeline data monitoring systems coupled to a pipeline data management center for receiving, archiving, and analysis of the data records to aid in administration, operation and management, and troubleshooting of pipelines.

Apparatus and method for assembling, measuring, and monitoring integrity of mechanical pipe joints
10732579 · 2020-08-04 ·

Processes and systems for preparing pipe for machine processing to form pin and box ends for assembly into pipelines using mechanical press-fit pipe joints that are fully measured and documented during both manufacturing and assembly. Installed pipelines include pipeline data monitoring systems coupled to a pipeline data management center for receiving, archiving, and analysis of the data records to aid in administration, operation and management, and troubleshooting of pipelines.

Processes for preparing, forming and assembling pipe sections in a pipeline using mechanical press fit pipe joints
10732580 · 2020-08-04 ·

A process for assembling a pipeline from pipe sections connected together using mechanical press-fit joints using mechanical press-fit pipe joints that are fully measured and documented during both manufacturing and assembly. Installed pipelines include pipeline data monitoring systems coupled to a pipeline data management center for receiving, archiving, and analysis of the data records to aid in administration operation and management, and troubleshooting of pipelines.