66results about How to "Reduced tool wear" patented technology

An electrical cable connector having a voltage detection test point generally includes an internal conductor, an inner insulating sheath surrounding the conductor, a conductive outer shield surrounding the insulating sheath, a separately molded plastic insulative shield disposed adjacent an opening formed in the conductive outer shield and held by the inner insulating sheath and a conductive voltage detection test point terminal disposed within the plastic insulative shield, wherein the test point terminal is capacitively coupled to the internal conductor for external testing of a voltage of the connector. In a preferred method for forming an electrical cable connector, such as a loadbreak power cable elbow connector, having a voltage detection test point, an insulative shield is first molded from a thermoplastic and a conductive voltage detection test point terminal is inserted within the plastic insulative shield. An outer shield is then molded from a conductive material. The conductive outer shield has an opening formed therethrough for accommodating the pre-assembled insulative plastic shield and test point terminal. After the pre-assembled insulative plastic shield and test point terminal are positioned adjacent the opening of the conductive outer shield, and after the conductive outer shield and an internal conductor are positioned within a mold cavity, an inner insulative housing is molded within the conductive outer shield and around the internal conductor. Upon molding, the pre-assembled insulative plastic shield and the test point terminal is held to the inner insulative housing. As a result, the test point terminal becomes capacitively coupled to the internal conductor for external testing of a voltage of the connector.

The present invention provides methods and systems for chip breaking, controlling cutting tool wear, and the like in turning, boring, and other applications, including: engaging a workpiece with a cutting tool in a feed direction along a toolpath, superimposing an oscillation in the feed direction on the toolpath, and dynamically or non-dynamically varying the oscillation superimposed in the feed direction on the toolpath such that interrupted cuts and chips of a predetermined length or less are produced. These systems take full advantage of computer numerical control (CNC) methodologies.

The present invention provides a friction stir welding apparatus and associated thermal management systems and methods for joining one or more similar or dissimilar materials forming a workpiece along a joint to be welded. The friction stir welding apparatus includes a pin tool apparatus selectively disposed adjacent to and in direct contact with a first surface of the workpiece along the joint to be welded and a heating member disposed adjacent to a second surface of the workpiece along the joint to be welded, the heating member operable for controllably heating at least a portion of the workpiece adjacent to the joint to be welded. The friction stir welding apparatus also includes an annular spindle having an interior portion and an axis, the interior portion of the annular spindle at least partially defining one or more cooling channels, the one or more cooling channels operable for containing a cooling fluid. The friction stir welding apparatus further includes a shoulder disposed adjacent to the annular spindle and substantially aligned with the axis of the annular spindle and a pin tool disposed adjacent to the shoulder and substantially aligned with the axis of the annular spindle. The cooling fluid is operable for cooling at least one of the shoulder and the pin tool.

The invention relates to a method of friction stir welding in which use is made of a rotating friction stir welding tool, said tool having a probe, the method comprises, (a) temperature control of the tool during welding of a workpiece of hard to weld materials by passing a temperature controlling coolant through one or more channels in the tool in order to control the temperature of the probe, thereby removing excessive heat from the tool and from the area of the workpiece being welded, (b) said coolant having a predetermined first temperature upon entering the tool, (c) measuring a second predetermined temperature indicative of the tool probe temperature, and (d) controlling the welding process such that the tool probe is kept essentially at a predetermined tool probe temperature. The invention also relates to a combination for performing the method.

A cannula (100) for an injection device, the cannula defining a tapered end part termination (102) in a distal end for insertion into the tissue of a living being, wherein the hardness of the cannula decreases in the direction of the distal end. A tool (104) for providing a tapered portion of a cannula, the tool defining a tapered cavity (106). A method of manufacturing a cannula defining a tapered end part, by forcing a distal end of an tubular element into a tapered cavity of a tool.

The invention is an electrolytic microfinishing process which utilizes a conductive tool as a cathode and a conductive workpiece as an anode both connected to a power supply. Electrolytic fluid is pumped between the tool and workpiece, creating a decomposition of the workpiece surface allowing the surface of the workpiece to be removed or wiped away by the interaction of the flowing electrolyte and rotation of the tool without generating any heat at a rate significantly faster than any other known machining process. The tool has no contact with the workpiece and accordingly, requires very low clamping loads to hold the workpiece in the spindle during the finishing operation. Due to the low clamping loads, the distortion of the workpiece is completely eliminated. Modulating the power supply during the work cycle allows the use of a single tool for both roughing and finishing as a continuous cycle to significantly provide surface finishes previously unobtainable.

A face milling cutter. The abstract of the disclosure is submitted herewith as required by 37 C.F.R. §1.72(b). As stated in C.F.R. §1.72(b): A brief abstract of the technical disclosure in the specification must commence on a separate sheet, preferably following the claims, under the heading “Abstract of the Disclosure.” The purpose of the abstract is to enable the Patent and Trademark Office and the public generally to determine quickly from a cursory inspection the nature and gist of the technical disclosure. The abstract shall not be used for interpreting the scope of the claims. Therefore, any statements made relating to the abstract are not intended to limit the claims in any manner and should not be interpreted as limiting the claims in any manner.

The invention belongs to a machining method and a material, in particular to a nanometer grinding process and nanometer grinding liquid. In the nanometer grinding process, the nanoscale particles of solid matter are added into the grinding process; the nanometer grinding liquid is formed by mixing the nanoscale particles of solid matter and fluidic grinding liquid. The invention has the following beneficial effect: compared with the existing water-base or oil-base grinding liquid, the nanometer grinding liquid has greatly lowered indexes, such as grinding zone temperature, surface roughness, grinding resistance, grinding tool loss and the like; machining quality and economic benefit are obviously improved, and thus the invention has higher application value and market prospect.

Apparatus comprising, in use, a wide bandgap semiconductor, a conductor which is moveable relative to the semiconductor and means for applying a potential across the junction between a conductor and semiconductor to control the friction generated by the relative movement between the semiconductor and the conductor. A method of controlling friction between a wide bandgap semiconductor and conductor which are moveable relative to each other comprising applying a potential across the junction between the semiconductor and the conductor.

A steel product, such as a strip, plate, sheet, bar or wire, manufactured from austenitic stainless steel. A steel product, wherein: a—the average grain size of the recrystallized austenitic structure of said product is at most 6 , b—less than 50% of the structure of said product is non-recrystallized austenite c—the yield strength (Rpo.2) is at least 350 MPa, d—the tensile strength (Rm) is at least 600 MPa, and e—the uniform elongation (Ag) of said product is at least 5%, depending on the strength. The invention also relates to a method.

The invention relates to a special milling cutter made of a difficult-to-process material and belongs to the technical field of machining. The special milling cutter comprises a machine tool spindle box, a machine tool rotating spindle, a milling cutter positioning mandrel, a plurality of tightening screws, a center wheel frame, a plurality of wheel frame bolts, a cutter disc, a center wheel frame outer oil seal, a center wheel frame inner oil seal, an upper cover plate, a plurality of upper cover plate bolts and a plurality of planet wheels. The plurality of planet wheels are arranged on the horizontal circumference taking a machine tool rotating spindle axis as a rotating center at equal intervals. While carrying out feed movement along with the cutter disc, a circular blade of each plane wheel rotates around a self axis to finish processing of a workpiece. The special milling cutter made of the difficult-to-process material has the advantages that the abrasion of the cutter can be effectively reduced, the service life of the cutter is improved, and the cutting speed and the processing efficiency are improved.

The invention relates to a tool having at least one layer of Ti_xAl_1-xN, where 0.2 ≦x≦0.8, which is composed of a plurality of laminar plies to give an overall layer thickness of 0.01 μm to 3 μm and which has crystallites having a size of ≦10 nm. To produce such a layer, by magnetron sputtering in an N₂ atmosphere, Ti and Al are respectively released from separately arranged cathode targets, wherein the tool is moved past the cathode repeatedly at a speed which is such that in each case only a nanocrystalline layer forms upon this movement.

A method for the production of glass or glass ceramic elements from flat glass or glass ceramic parts is provided where the edges of the glass or glass ceramic elements are treated by a combination of two processes. The flat glass or glass ceramic element with an edge surface connecting the two side surfaces is produced. The edge surface has at least one first elongated, strip-shaped edge region and at least one second elongated strip-shaped edge region, which are formed by a ground edge. The edge regions extend in the longitudinal direction along the edge surface and along the side surfaces. The first edge region has elongated parallel filamentary damages that are parallel and adjacent to one another and, in particular, spaced apart equidistantly, in the longitudinal direction thereof extending transversely to the side surfaces and along the surface of the first edge region.

A block of stacked green films provided with internal electrodes is laminated, at least one actuator is separated from the block, the actuator obtains its shape by means of a machining operation, is then sintered, and the sinter skin produced by the sintering is used as an insulating layer. The sinter skin is abraded at the points where the internal electrodes are connected to the external electrodes.

A torque transmitting device, such as a fixed constant velocity ball joint as a counter track joint and a method for producing such a joint, in which the curvatures of the bases of the joint tracks deviate in their axial course from the curvatures of the ball contact lines. The method is characterized in that the joint component is brought to an increased hardness by a hardening process prior to the formation of the longitudinal profile of the component, and a diffusion layer is partially or completely removed in the region of the longitudinally profiled structure.

The invention discloses a high-voltage pulse discharge-mechanical combined rock-breaking full-section tunneling machine, and solves the problems of slow tunneling speed, fast tool wear and the like byadopting a prior mechanical breaking working mode in tunnel engineering. The tunneling machine comprises a tunneling machine main machine, wherein a cutter head and cutter system is arranged on the tunneling machine main machine, and an electrode is arranged on the cutter head and cutter system. The tunneling machine designs a novel electrode scraper with high-voltage pulse discharge and a scraping capability; the electrode of a high-voltage pulse discharge control system is coupled with other mechanical cutters such as a hob and the like, so that the rock breaking efficiency is improved, andthe wear of the cutter is reduced.

A workpiece is machined by setting a frequency response band of a control system for a rotation drive motor or a feed drive motor so that tool abrasion is within a predetermined allowable range. The frequency response band may be adjusted by adjusting a proportional gain and an integral gain. With the workpiece machined by such a process, where the frequency response band maintains tool abrasion within the allowable range, machining quality and efficiency are improved.

The invention relates to an ultrasound, laser and machine combined machining method, an ultrasonic vibration clamp, a machine tool and a laser device. Under the condition that a to-be-machined workpiece generates ultrasonic vibration, laser generated by the laser device roughly machines the to-be-machined workpiece, and a damage layer with cracks is generated on the to-be-machined workpiece through laser machining; ultrasonic vibration is used for increasing expansion of the damage layer, and then finish machining is conducted on the to-be-machined workpiece through a cutter. The ultrasonic vibration is beneficial to disengagement of molten drops generated after the laser ablates the to-be-machined workpiece, so that the contact between the to-be-machined workpiece and the laser is increased. The laser ablation effect can cause the surface of the to-be-machined workpiece to generate the damage layer with microcracks, under the action of ultrasonic vibration, after the microcracks are formed, due to the existence of high-frequency vibration, stress in the material is released more completely, the expansion of the microcracks is stably enlarged, and then the expansion of the damage layer is stably expanded; and in this way, removal of the material can be facilitated when the cutter conducts finish machining on the machined workpiece, the cutting force and cutter abrasion are reduced, and the machining efficiency is improved.