An automated bore finishing process particularly adapted for lapping automatically corrects one or more bore parameters, such as diameter, geometry, surface finish, in an iterative manner to reach a final value, controlled by algorithms that process feedback from a measurement process. The process determines bore parameter information and determines an optimum set of values for the process parameters, such as stroke position, stroke length and duration of the next lapping iteration. This optimization is targeted to achieve the desired final bore parameter or parameters within the specified bore size limits, and may be used to alter the stroke profile either for the entire next iteration or in a continuously changing manner, to minimize or eliminate bore defects over one or a succession of iterations.

An automated bore finishing process particularly adapted for lapping automatically corrects one or more bore parameters, such as diameter, geometry, surface finish, in an iterative manner to reach a final value, controlled by algorithms that process feedback from a measurement process. The process determines bore parameter information and determines an optimum set of values for the process parameters, such as stroke position, stroke length and duration of the next lapping iteration. This optimization is targeted to achieve the desired final bore parameter or parameters within the specified bore size limits, and may be used to alter the stroke profile either for the entire next iteration or in a continuously changing manner, to minimize or eliminate bore defects over one or a succession of iterations.

A system for cleaning a weld gun nozzle includes a guide module and a reaming module. The guide module includes a holder assembly that includes a plurality of elongate skid bars. The reaming module includes a rotatable reamer. The skid bars are generally non-rotatable and define an opening into which the weld gun nozzle can be inserted to align the nozzle with the rotatable reamer. The nozzle is guided by the skid bars and inserted over the reamer, which rotates within the nozzle to clean debris from the nozzle. The skid bars are non-rotatable, and can be installed within the holder assembly to be resiliently move radially inward and outward to accommodate the nozzle during insertion.

A system for cleaning a weld gun nozzle includes a guide module and a reaming module. The guide module includes a holder assembly that includes a plurality of elongate skid bars. The reaming module includes a rotatable reamer. The skid bars are generally non-rotatable and define an opening into which the weld gun nozzle can be inserted to align the nozzle with the rotatable reamer. The nozzle is guided by the skid bars and inserted over the reamer, which rotates within the nozzle to clean debris from the nozzle. The skid bars are non-rotatable, and can be installed within the holder assembly to be resiliently move radially inward and outward to accommodate the nozzle during insertion.

In order to achieve as highly accurate an alignment of the frictional tool as possible and therefore as high a drilled hole quality as possible during the precision machining of a drilled hole, the cutting edges of the frictional tool are divided into two cutting groups, the cutting edges of which are spaced apart with respect to one another in each case by an axial spacing from one another. Here, the axial spacing is selected in such a way that, at a predefined first, slower feed speed, merely the cutting edges of the first cutting edge group are in engagement with the workpiece and, at a higher, predefined second feed speed, all cutting edges are in engagement with the workpiece.

In order to achieve as highly accurate an alignment of the frictional tool as possible and therefore as high a drilled hole quality as possible during the precision machining of a drilled hole, the cutting edges of the frictional tool are divided into two cutting groups, the cutting edges of which are spaced apart with respect to one another in each case by an axial spacing from one another. Here, the axial spacing is selected in such a way that, at a predefined first, slower feed speed, merely the cutting edges of the first cutting edge group are in engagement with the workpiece and, at a higher, predefined second feed speed, all cutting edges are in engagement with the workpiece.

A system for cleaning a weld gun nozzle includes a guide module and a reaming module. The guide module includes a holder assembly that includes a plurality of elongate skid bars. The reaming module includes a rotatable reamer. The skid bars are generally non-rotatable and define an opening into which the weld gun nozzle can be inserted to align the nozzle with the rotatable reamer. The nozzle is guided by the skid bars and inserted over the reamer, which rotates within the nozzle to clean debris from the nozzle. The skid bars are non-rotatable, and can be installed within the holder assembly to be resiliently move radially inward and outward to accommodate the nozzle during insertion.

A system for cleaning a weld gun nozzle includes a guide module and a reaming module. The guide module includes a holder assembly that includes a plurality of elongate skid bars. The reaming module includes a rotatable reamer. The skid bars are generally non-rotatable and define an opening into which the weld gun nozzle can be inserted to align the nozzle with the rotatable reamer. The nozzle is guided by the skid bars and inserted over the reamer, which rotates within the nozzle to clean debris from the nozzle. The skid bars are non-rotatable, and can be installed within the holder assembly to be resiliently move radially inward and outward to accommodate the nozzle during insertion.

A high-speed precision interrupted ultrasonic vibration cutting method includes steps of: (1) installing an ultrasonic vibration apparatus on a machine tool, and stimulating a cutting tool to generate a transverse vibration, so as to realize varieties of machining processes; (2) realizing an interrupted cutting process by setting cutting parameters and vibration parameters to satisfy an interrupted cutting conditions; and (3) turning on the ultrasonic vibration apparatus and the machine tool, and starting a high-speed precision interrupted ultrasonic vibration cutting process. High-speed precision interrupted ultrasonic vibration cutting is able to be realized through the above steps during machining of difficult-to-machine materials in aviation and aerospace fields. A cutting speed is enhanced significantly, and exceeds a critical cutting speed of a conventional ultrasonic vibration cutting method and an elliptical ultrasonic vibration cutting method and even a high speed range of a traditional cutting method.

Embodiments of the present disclosure are directed to a roller-skate bearing seat truing tool comprising a plurality of spaced teeth, a first handle, and a second handle. The plurality of spaced teeth may be operable to true up a cylindrical surface of a roller-skate bearing seat and a vertical surface of the roller-skate bearing seat. The first handle may comprise a protrusion longitudinally extending from one end. The second handle may comprise a receptacle at one end configured to slidably receive the protrusion. The plurality of spaced teeth may be disposed about an upper rim of the receptacle, on an upper rim of the first handle, about the protrusion, or both.