An apparatus, system, and method using an elastic biasing element in combination with an encoder arrangement for precise control of force or torque applied to a moving object, is applied for controlling a feed force applied to an abrasive element of a bore finishing tool, to respond to changes in the feed force such as can arise from contact with a workpiece bore surface and variations therein, such as tapers, hourglass shapes, barrel shapes, and the like. The elastic biasing element can include a single or multiple springs in one or more sets, and the feed force can be selected to have a constant value or vary as a function of time, position, or other variables or conditions.

An apparatus, system, and method using an elastic biasing element in combination with an encoder arrangement for precise control of force or torque applied to a moving object, is applied for controlling a feed force applied to an abrasive element of a bore finishing tool, to respond to changes in the feed force such as can arise from contact with a workpiece bore surface and variations therein, such as tapers, hourglass shapes, barrel shapes, and the like. The elastic biasing element can include a single or multiple springs in one or more sets, and the feed force can be selected to have a constant value or vary as a function of time, position, or other variables or conditions.

A multi-functional wheel deburring device is capable of removing burrs at the center hole, the flange weight reducing socket, the spoke back cavity weight reducing socket and the spoke edge of the wheel during the use.

A multi-functional wheel deburring device is capable of removing burrs at the center hole, the flange weight reducing socket, the spoke back cavity weight reducing socket and the spoke edge of the wheel during the use.

Apparatus, assemblies, and/or systems related to material removal are disclosed, such as saws, grinders, polishers, and/or more general material preparation and/or testing machines, for example. A material removal system may include a material removal machine that is configured to move via a material removal assembly. The material removal machine also includes a material removal tool configured to spin on a spindle at the urging of a tool actuator. The tool actuator is integrated into the material removal machine, such that the tool actuator moves along with the material removal machine.

Grinding apparatus includes plural chuck tables disposed on a turntable, a first grinding unit and a second grinding unit that execute infeed grinding of a wafer, and a first grinding feed unit and a second grinding feed unit that execute grinding feed of them. Each grinding feed unit has a pair of guides parallel to the grinding feed direction and a ball screw. The grinding area of each grinding unit has a circular arc shape in which one end exists at the outer circumference of the wafer and the other end exists at the center of the wafer.

Apparatus, assemblies, and/or systems related to material removal are disclosed, such as saws, grinders, polishers, and/or more general material preparation and/or testing machines, for example. A material removal system may include a material removal machine that is configured to move via a material removal assembly. The material removal machine also includes a material removal tool configured to spin on a spindle at the urging of a tool actuator. The tool actuator is integrated into the material removal machine, such that the tool actuator moves along with the material removal machine.

Apparatus, assemblies, and/or systems related to material removal are disclosed, such as saws, grinders, polishers, and/or more general material preparation and/or testing machines, for example. A material removal system may include a material removal machine that is configured to move via a material removal assembly. The material removal machine also includes a material removal tool configured to spin on a spindle at the urging of a tool actuator. The tool actuator is integrated into the material removal machine, such that the tool actuator moves along with the material removal machine.

An elastic emission machining apparatus includes a machining element having a non-spherical shape that is configured to spin about an axis of rotation, a tank, and a driving system. The tank has a chamber positioned to receive the machining element and a slurry comprising a mixture of a liquid and chemically reactive fine particles. The driving system is coupled to and configured to engage the machining element to spin about the axis of rotation adjacent to a surface of the workpiece to accelerate the chemically reactive fine particles through a gap between the machining element and the surface of the workpiece.

An elastic emission machining apparatus includes a machining element having a non-spherical shape that is configured to spin about an axis of rotation, a tank, and a driving system. The tank has a chamber positioned to receive the machining element and a slurry comprising a mixture of a liquid and chemically reactive fine particles. The driving system is coupled to and configured to engage the machining element to spin about the axis of rotation adjacent to a surface of the workpiece to accelerate the chemically reactive fine particles through a gap between the machining element and the surface of the workpiece.