An edge processing device includes: conveying means that convey a molded powder compact, a first rotating tool disposed on one side and a second rotating tool disposed on the other side and rotating in a direction identical to a direction the first rotating tool rotates. The first rotating tool contacts from an upstream side with a first corner portion between one side surface of a processing target portion of the molded powder compact and a rear surface of the processing target portion. The second rotating tool contacts from a downstream side with a second corner portion between the other side surface of the processing target portion and a front surface of the processing target portion. The second rotating tool faces the first rotating tool with the conveying path therebetween, and is positionally displaced to the downstream side with respect to the first rotating tool.

A method and a system for machining a work piece by a machining tool are provided. The method includes relatively moving the machining tool against the work piece to apply machining feeds therebetween. The contact points at the work piece are arranged on the area of the work piece to be machined, and the contact points at the machining tool form a curve on the machining tool surface. The system includes a manipulator, a machining tool and a controller being adapted for controlling the manipulator to operate the machining tool according to the method as above. With this solution, the system can generate wave paths of a machining tool, so as to extend the life of the tool and ensure the processing quality.

A method and a system for machining a work piece by a machining tool are provided. The method includes relatively moving the machining tool against the work piece to apply machining feeds therebetween. The contact points at the work piece are arranged on the area of the work piece to be machined, and the contact points at the machining tool form a curve on the machining tool surface. The system includes a manipulator, a machining tool and a controller being adapted for controlling the manipulator to operate the machining tool according to the method as above. With this solution, the system can generate wave paths of a machining tool, so as to extend the life of the tool and ensure the processing quality.

A method for manufacturing a disk-shaped glass substrate is a method for manufacturing a disk-shaped glass substrate for cutting out one or more thin glass substrates. The method for manufacturing a disk-shaped glass substrate includes preparing a disk-shaped glass blank, which is a glass blank having two circular main surfaces, chamfering an outer edge portion of each of the two main surfaces of the disk-shaped glass blank, grinding the two main surfaces of the chamfered disk-shaped glass blank, using a double-side grinding apparatus, and polishing the two main surfaces of the ground disk-shaped glass blank, using a double-side polishing apparatus.

A deburring device includes a cylindrical body with a receptacle for receiving a pipe. The cylindrical body includes an abrasive surface provided in the receptacle, which is configured to simultaneously deburr at least two surfaces of a pipe inserted into the receptacle.

A nested multi-port pipe preparation device is provided herein. The nested multi-port pipe preparation device is a single tool configured to clean and deburr the ends of two or more differently sized pipes and pipe fittings. The device includes a housing having a plurality of ports. Each port includes a single female pipe-cleaning member, a single male pipe-cleaning member, or a pipe-cleaning member assembly. The pipe-cleaning member assembly includes a male pipe-cleaning member and a female pipe-cleaning member concentrically surrounding the male pipe-cleaning member such that an exterior portion of a pipe and the interior portion of a pipe fitting can be cleaned in the device. The device further includes two or more deburring blades positioned relative to the single female pipe-cleaning member and the pipe-cleaning member assembly for deburring a pipe as the pipe is cleaned.

There are provided a step seal, a seal structure, a turbo machine, and a method for manufacturing a step seal. The step seal suppresses leak of a fluid from a gap between a first structure and a second structure and is formed on the first structure so as to have a clearance between the step seal and a seal fin formed on the second structure. The first structure and the second structure face each other in a radius direction with the gap inbetween and rotate around an axis line relative to each other. The step seal includes: a step seal body having a step face facing an upstream side of a flow direction of the fluid and an opposed face facing the second structure; and a protrusion formed between the step face and the opposed face.

There are provided a step seal, a seal structure, a turbo machine, and a method for manufacturing a step seal. The step seal suppresses leak of a fluid from a gap between a first structure and a second structure and is formed on the first structure so as to have a clearance between the step seal and a seal fin formed on the second structure. The first structure and the second structure face each other in a radius direction with the gap inbetween and rotate around an axis line relative to each other. The step seal includes: a step seal body having a step face facing an upstream side of a flow direction of the fluid and an opposed face facing the second structure; and a protrusion formed between the step face and the opposed face.

Letting a particle diameter be Dx (m) when a cumulative particle volume cumulated from the small particle diameter side reaches x(%) of the total particle volume in a particle size distribution obtained regarding cerium oxide included in a polishing liquid using a laser diffraction/scattering method, D5 is 1 m or less, and a difference between D95 and D5 is 3 m or more.

A robotic deburring process that automatically, accurately, and efficiently removes burrs from a workpiece. The robotic deburring process uses CAM location data to establish deburring trajectory, physics based machining models to predict burr type and size, and force control functions to compensate inaccuracies due of inaccuracies of robots arms.