Patent application number | Description | Published |
20080232911 | METHOD AND ASSEMBLY FOR ROTATING A CUTTING INSERT DURING A TURNING OPERATION AND INSERTS USED THEREIN - A cutting insert rotated about its axis may be utilized during a metalworking operation and applied against the rotating workpiece to enhance tool performance. A method, including an assembly with a rotatable insert mounted to a toolholder may be utilized to achieve this result. | 09-25-2008 |
20100278606 | SYSTEM AND METHOD OF SYNCHRONIZED MACHINING - Machine tool systems and methods include methods of synchronizing cutting tools with a workpiece retainer. In some embodiments, the methods and systems provide at least two cutting tools that are synchronized to machine a common surface of a workpiece in a quick and efficient manner. A controller having a single line of code for controlling both cutting tools and the workpiece retainer may be used. The cutting tools may be synchronized such that they engage substantially opposite portions of the workpiece, thereby to reduce resulting forces in the workpiece that may tend to induce workpiece deflection and/or chatter. In other embodiments, a cutting tool is synchronized with a split workpiece holder that may be controlled to induce a compression, tension, or torsion pre-load in the workpiece. | 11-04-2010 |
20110118867 | Device and Method for Turning in Virtual Planes - A turning method and apparatus includes a tool holding mechanism, such as a turret, and a workpiece holder, typically a chuck disposed on a main machine spindle. The tool holding mechanism may be translated in three directions relative to the workpiece holder, including a Z-direction that is along the axis of the rotation of the workpiece holder and X- and Y-directions orthogonal thereto. Under the control of the computer control system, the tool holding mechanism is moved in a direction having both an X- and Y-component relative to the workpiece holder. | 05-19-2011 |
20110209529 | Measuring Apparatus and Method - An apparatus for obtaining information about a workpiece may include a measuring device having a nozzle defining an orifice in fluid communication with a source of incompressible fluid. A fluid monitoring apparatus may monitor a parameter of the substantially incompressible fluid, and a pump may be fluidly coupled to the source and configured to supply incompressible fluid to the orifice. The pump may have a pump chamber with a first displacement setting having a first fixed volume, so that operation of the pump at a first pump speed with the pump chamber in the first displacement setting generates a first fluid flow having a substantially constant first volumetric rate. The pump may have more than one displacement setting, or the pump may be operated at different speeds to change the volumetric flow rate. The nozzle may include multiple, independent orifice sets that may be selectively provided fluid, thereby to obtain information on different parts of the workpiece with a single placement of the nozzle. Additionally, the apparatus may be incorporated into a CNC machine to perform simultaneous measurement and machining operations. | 09-01-2011 |
20120096999 | COMPOUND MACHINING METHOD AND APPARATUS - A method of machining a workpiece may include continuously rotating the workpiece, continuously rotating a tool having at least one cutting surface, and positioning the tool relative to the workpiece so that the at least one cutting surface engages the workpiece at a first discrete location at a periphery of the workpiece. The method may further include continuing to rotate the workpiece and the tool so that the at least one cutting surface engages a second discrete location at the periphery of the workpiece, and controlling a tool surface velocity VT relative to the workpiece surface velocity VW so that the first and second discrete locations are discontinuous. The tool may make multiple iterative passes over the workpiece to engage subsequent discrete locations, wherein the first discrete location, second discrete location, and multiple subsequent discrete locations may form a machined surface that extends continuously around the workpiece. | 04-26-2012 |
20130273811 | Grind Hardening Method and Apparatus - A method of grind hardening a workpiece is provided. The method may include securing the workpiece in a workpiece retainer and a grind tool in a tool retainer, rotating the grind tool in a first angular direction at a first angular speed, controlling the workpiece and tool retainers such that the grind tool engages the workpiece, and controlling the workpiece and tool retainers such that the grind tool is guided along a grinding track of the workpiece. The grind tool may engage and/or disengage the workpiece at portions of sacrificial material disposed thereon. Coolant and cleaning nozzles may be provided and controlled such that at least a portion of the coolant from the coolant nozzle is diverted to the cleaning nozzle in a manner which reduces heat dissipation, improves thermal efficiency of the grind hardening and reduces loading of the grind tool. | 10-17-2013 |
20160096230 | Generative Gear Machining Method and Apparatus - Gear machining apparatus and methods are configured to produce gaps between gear teeth having portions formed by two different machining processes. A rough cutting process may be used to form a root portion of the gap, while a finish cutting process may be used to form final tooth faces. The apparatus and methods may further be configured to machine one or more gear tooth profile modifications. | 04-07-2016 |
20160129528 | MACHINE TOOL SYSTEM AND METHOD FOR ADDITIVE MANUFACTURING - A machine for additive manufacturing positions a film having additive material relative to a substrate. The additive material is melted onto the substrate or previously formed layers of a workpiece using a laser. The substrate/workpiece and/or the film can be positioned in multiple axes so that complex shapes can be formed without extraneous supporting structures. The film-based delivery of the additive material allows deposition in orientations other than horizontal as is required for powder-only additive manufacturing and also avoids the inconvenience of collecting and recycling unused loose powdered metal. | 05-12-2016 |