Abstract

A tool bit includes a shaft that defines a bit axis and has a first end and a second end. There is at least one work-hardening section adjacent the second end. The at least one work-hardening section has a profile that either is cylindrical or is a portion of a sphere. The at least one work-hardening section defines a smooth working surface.

IPC Classes  ?

• B23B 51/08 - Drills combined with tool parts or tools for performing additional working

Abstract

An example method includes performing a machining operation by providing linear movement of a tool along a feed axis relative to a workpiece while superimposing oscillation of the tool onto the feed axis and providing rotation of the tool relative to the workpiece. During an optimization mode, the machining operation is performed on a first workpiece portion while providing the linear movement at an initial feed velocity, and sequentially superimposing the oscillating at a plurality of different frequencies. An optimal oscillation frequency is determined from the plurality of different frequencies which causes the tool to apply less force to the first workpiece portion at the initial feed velocity than others of the frequencies. During a run mode, the machining operation is performed on a second workpiece portion having a same composition as the first workpiece portion while superimposing the oscillation at the optimal oscillation frequency.

IPC Classes  ?

• B23B 35/00 - Methods for boring or drilling, or for working essentially requiring the use of boring or drilling machinesUse of auxiliary equipment in connection with such methods
• B23Q 15/12 - Adaptive control, i.e. adjusting itself to have a performance which is optimum according to a preassigned criterion
• B23B 29/12 - Special arrangements on tool holders

Abstract

An example method includes performing a machining operation by providing linear movement of a tool along a feed axis relative to a workpiece while superimposing oscillation of the tool onto the feed axis and providing rotation of the tool relative to the workpiece. During an optimization mode, the machining operation is performed on a first workpiece portion while providing the linear movement at an initial feed velocity, and sequentially superimposing the oscillating at a plurality of different frequencies. An optimal oscillation frequency is determined from the plurality of different frequencies which causes the tool to apply less force to the first workpiece portion at the initial feed velocity than others of the frequencies. During a run mode, the machining operation is performed on a second workpiece portion having a same composition as the first workpiece portion while superimposing the oscillation at the optimal oscillation frequency.

IPC Classes  ?

• B23B 35/00 - Methods for boring or drilling, or for working essentially requiring the use of boring or drilling machinesUse of auxiliary equipment in connection with such methods
• B23Q 15/12 - Adaptive control, i.e. adjusting itself to have a performance which is optimum according to a preassigned criterion
• B23B 29/12 - Special arrangements on tool holders

Abstract

An example method includes performing a machining operation by providing linear movement of a tool along a feed axis relative to a workpiece while superimposing oscillation of the tool onto the feed axis and providing rotation of the tool relative to the workpiece. During an optimization mode, the machining operation is performed on a first workpiece portion while providing the linear movement at an initial feed velocity, and sequentially superimposing the oscillating at a plurality of different frequencies. An optimal oscillation frequency is determined from the plurality of different frequencies which causes the tool to apply less force to the first workpiece portion at the initial feed velocity than others of the frequencies. During a run mode, the machining operation is performed on a second workpiece portion having a same composition as the first workpiece portion while superimposing the oscillation at the optimal oscillation frequency.

IPC Classes  ?

• B23Q 5/027 - Driving main working members reciprocating members
• B23Q 5/04 - Driving main working members rotary shafts, e.g. working-spindles
• B23Q 5/10 - Driving main working members rotary shafts, e.g. working-spindles driven essentially by electrical means
• B23Q 5/28 - Electric drives
• B23Q 5/32 - Feeding working-spindles
• B23Q 5/40 - Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously by feed shaft, e.g. lead screw
• B23Q 15/007 - Automatic control or regulation of feed movement, cutting velocity or position of tool or work while the tool acts upon the workpiece
• B23Q 15/013 - Control or regulation of feed movement
• B23Q 15/12 - Adaptive control, i.e. adjusting itself to have a performance which is optimum according to a preassigned criterion
• B23Q 15/16 - Compensation for wear of the tool
• B23Q 15/24 - Control or regulation of position of tool or workpiece of linear position

Abstract

An example method includes performing a machining operation by providing linear movement of a tool along a feed axis relative to a workpiece while superimposing oscillation of the tool onto the feed axis and providing rotation of the tool relative to the workpiece. During an optimization mode, the machining operation is performed on a first workpiece portion while providing the linear movement at an initial feed velocity, and sequentially superimposing the oscillating at a plurality of different frequencies. An optimal oscillation frequency is determined from the plurality of different frequencies which causes the tool to apply less force to the first workpiece portion at the initial feed velocity than others of the frequencies. During a run mode, the machining operation is performed on a second workpiece portion having a same composition as the first workpiece portion while superimposing the oscillation at the optimal oscillation frequency.

IPC Classes  ?

• B23Q 5/027 - Driving main working members reciprocating members
• B23Q 5/04 - Driving main working members rotary shafts, e.g. working-spindles
• B23Q 5/10 - Driving main working members rotary shafts, e.g. working-spindles driven essentially by electrical means
• B23Q 5/28 - Electric drives
• B23Q 5/32 - Feeding working-spindles
• B23Q 5/40 - Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously by feed shaft, e.g. lead screw
• B23Q 15/007 - Automatic control or regulation of feed movement, cutting velocity or position of tool or work while the tool acts upon the workpiece
• B23Q 15/013 - Control or regulation of feed movement
• B23Q 15/12 - Adaptive control, i.e. adjusting itself to have a performance which is optimum according to a preassigned criterion
• B23Q 15/16 - Compensation for wear of the tool
• B23Q 15/24 - Control or regulation of position of tool or workpiece of linear position

Abstract

An example method includes performing a machining operation by providing linear movement of a tool along a feed axis relative to a workpiece while superimposing oscillation of the tool onto the feed axis and providing rotation of the tool relative to the workpiece. During an optimization mode, the machining operation is performed on a first workpiece portion while providing the linear movement at an initial feed velocity, and sequentially superimposing the oscillating at a plurality of different frequencies. An optimal oscillation frequency is determined from the plurality of different frequencies which causes the tool to apply less force to the first workpiece portion at the initial feed velocity than others of the frequencies. During a run mode, the machining operation is performed on a second workpiece portion having a same composition as the first workpiece portion while superimposing the oscillation at the optimal oscillation frequency.

IPC Classes  ?

• B23Q 15/12 - Adaptive control, i.e. adjusting itself to have a performance which is optimum according to a preassigned criterion
• B23B 35/00 - Methods for boring or drilling, or for working essentially requiring the use of boring or drilling machinesUse of auxiliary equipment in connection with such methods
• B23B 29/12 - Special arrangements on tool holders