A manufacturing apparatus for producing a curved contour on an end face of a roll includes a grinding device and a holding device, linearly movable relative to the grinding device. The grinding device is for grinding the curved contour on the end face. The holding device is for holding the roll between the holding device and the grinding device. A method for producing the curved contour on the end face using the manufacturing apparatus is also disclosed. The method includes driving the holding device to move in a linear fashion relative to the grinding device.

A reamer head for a reamer includes one or more blades separated by flutes. Each flute has a front core region proximate a front end of the cutting portion, a rear portion proximate a rear end of the cutting portion and the middle core region therebetween. The front core region has a thickness, T1, the middle core region has a thickness, T2, and the rear core region has a thickness, T3. The thickness, T2, of the middle core region is greater than the thickness, T1, of the front core region and the thickness, T3, of the rear core region. A method of making the reamer head is also disclosed.

A reamer head for a reamer includes one or more blades separated by flutes. Each flute has a front core region proximate a front end of the cutting portion, a rear portion proximate a rear end of the cutting portion and the middle core region therebetween. The front core region has a thickness, T1, the middle core region has a thickness, T2, and the rear core region has a thickness, T3. The thickness, T2, of the middle core region is greater than the thickness, T1, of the front core region and the thickness, T3, of the rear core region. A method of making the reamer head is also disclosed.

An apparatus for automation of weld seams machining of a wind turbine tower is provided. The apparatus includes an automated arm; a machining tool fixed to the automated arm; a compensator system fixed to the machining tool or being part of the automated arm; a joint visor that identifies and locates the weld seam; and a control unit to coordinate the movement of the machining tool with the compensator system and the joint visor. A method of performing a welded circular seam machining in a wind turbine tower with the apparatus is also provided.

There are disclosed systems and methods for safely and effectively removing the articular cartilage and cortical bone layers from an articular surface of a human cadaveric femoral head. One embodiment includes an osseous-sanding accessory system installed upon a conventional band saw having a motor and a cabinet that houses a pulley coupled with a primary drive shaft rotated by the motor. The accessory system may include a threaded drive shaft coupled with the primary drive shaft, a grinding disk having an abrasive surface and affixed about a distal end of the threaded drive shaft, and a removable accessory table mounted to the band saw below the grinding disk. When the motor rotates the primary drive shaft, and thus the threaded drive shaft, the grinding disk rotates relative to the accessory table and abrades osseous tissues introduced to the abrasive surface of the grinding disk. Other embodiments are also disclosed.

There are disclosed systems and methods for safely and effectively removing the articular cartilage and cortical bone layers from an articular surface of a human cadaveric femoral head. One embodiment includes an osseous-sanding accessory system installed upon a conventional band saw having a motor and a cabinet that houses a pulley coupled with a primary drive shaft rotated by the motor. The accessory system may include a threaded drive shaft coupled with the primary drive shaft, a grinding disk having an abrasive surface and affixed about a distal end of the threaded drive shaft, and a removable accessory table mounted to the band saw below the grinding disk. When the motor rotates the primary drive shaft, and thus the threaded drive shaft, the grinding disk rotates relative to the accessory table and abrades osseous tissues introduced to the abrasive surface of the grinding disk. Other embodiments are also disclosed.

Systems and methods for conditioning blades are provided. A method may include, for example, obtaining a cutting device, measuring various characteristics of the cutting edge of the cutting device, creating a current edge profile based on the characteristics, creating a modified edge profile, and/or conditioning the blade. Conditioning may include grinding, buffing and/or polishing. One or more of the conditioning steps may be based on the modified edge profile.

A grinding device for raised joints of rivets on sheet metal is provided, including a lateral plate, legs, a moving plate, first springs, a first bearing seat, a sleeve, a grinding wheel, a moving bar, a 7-shaped plate, a vertical bar, a second spring, an oscillating plate, etc. The legs are fixedly connected, in a symmetric manner, to left and right sides of the bottom of the lateral plate. A through hole, which has a function of guiding, is formed on a left side of the lateral plate. The moving bar is located in the through hole. In the present disclosure, a driving motor is started to rotate the grinding wheel, the grinding device is moved to enable the grinding wheel to be located above a raised joint, and then the oscillating plate is pulled so that the grinding wheel can move downward to grind the raised joint.

A method of manufacturing a rotary abrasive machining tool, the rotary abrasive machining tool including a hub and a plurality of abrasive segments mounted to the hub, the method including the steps of: mounting each abrasive segment on the hub; machining an abrading edge on each abrasive segment while the abrasive segment is mounted on the hub.

A cross-recess screwdriver sharpening assembly for sharpening a cross-recess screwdriver includes a housing that has a sharpening aperture. A plurality of grinding wheels is rotatably mounted within the housing. Each of the grinding wheels is arranged to define a grinding space. A plurality of sleeves is included wherein each of the sleeves is removably extendable into the interior of the housing to have the cross-recess screwdriver positioned therethrough such that the cross-recess screwdriver extends into the housing. The sharpening aperture receives one of the sleeves therethrough and is centrally aligned with the grinding space such that the cross-recess screwdriver is extendable into the grinding space to sharpen the cross-recess screwdriver. A drive is mounted in the housing and mechanically coupled to each of the grinding wheels. The drive is turned on to rotate each of the grinding wheels.