CNC prescribe method to encourage chip breaking
US7441484B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 29, 2007 |
| Grant date | Oct 28, 2008 |
| Priority date | — |
| Expiry date | Jun 29, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T407/118
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method for pre-scribing a workpiece to facilitate chip breaking when machining the workpiece on the same machine with the same tooling used for cutting, utilizing an invokable CNC cycle of the CNC machine completing the workpiece machining. The machine includes a frame, a headstock mounted on the frame, spindle fixturing supported in the headstock for holding the workpiece, a spindle fixturing drive for rotating the spindle fixturing, a rotatably indexing tool for machining having one or more cutting edges, the tool adaptable for pre-scribing the workpiece, the method including the steps of placing the workpiece in the spindle fixturing oriented in a cutting position for machining, indexing the tool down the axial direction of the rotatable workpiece with the edge of the tool in scribing contact with the workpiece on the machining surface, pre-scribing a grooved notch along the workpiece in a line pattern with the grooved notch being scribed at a depth less than the depth of the final machining depth, and, machining the workpiece to the final machining depth.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.