摘要:
A grinding tool is provided that includes an axial grinding wheel having a circumferential cutting slot formed therein, the cutting slot having a cross-sectional profile that includes a floor having a first radius of curvature, a first side wall rising upward from the floor and having a second radius of curvature, a second side wall rising upward from the floor opposite the first side wall and having a third radius of curvature. At least one radius of curvature corresponds to a surface, such as a leading edge of a gas turbine engine airfoil.
摘要:
A system for removing material from a workpiece comprising: a mounted-point grinding tool configured to move from a first position to a second position traversing at least a portion of a slot in a workpiece and removing material from a surface of the workpiece; and a first nozzle configured to deliver coolant to the mounted-point grinding tool, wherein the first nozzle is configured to move with the mounted point grinding tool from the first position to the second position so that the distance between the first nozzle and the mounted-point grinding tool remains substantially unchanged. A second nozzle can be mounted on the opposite side of tool from first nozzle, with the second nozzle also configured to move with the grinding tool so that the distance between the first nozzle and the mounted-point grinding tool remains substantially unchanged during grinding.
摘要:
The grinding surface of a grinding stone is formed from a circular conical surface, a drive device for rotation is installed within a housing. The blade of a cutting tool is ground while the longitudinal direction of the cutting tool is aligned with the direction of a generating line of the grinding surface. When grinding the blade, the cutting tool can be aligned with the direction of the generating line of the grinding surface and the blade can be brought in contact with the grinding surface without the handle of the cutting tool and the hand that holds the cutting tool being interfered with the grinder. This is achieved irrespective of in which one of the directions of lines the tip of the blade faces, the lines being obtained by extending the generating line of the grinding surface from both ends of the generating line.
摘要:
A method of profiling a railway crossing may include determining an angle of taper of a rail vehicle wheel; applying a raised weld section to a wheel contact surface of the railway crossover; and planing the raised weld section to correspond to the angle of taper in a single set-up pass across the length of the railway crossover creating a wheel matched profile. The railway crossover may be a rail frog or a diamond crossing. The method may also include creating a three-dimensional surface contour model of the crossover by replicating a standard crossover profile; creating a wheel profile model that matches a wheel profile for a rail vehicle of the railway; defining wheel contact surface for the rail vehicle by transposing the wheel profile model over the standard crossing surface contour model; and modeling a raised weld section to be placed along the wheel contact surface.
摘要:
The invention relates to a method for hard fine machining of a pre-manufactured flank (11) of a gear wheel by a machine having at least five axes controlled in coordination and one additional tool axis (WA). According to the invention, a rotation-symmetrical tool (20.1) is driven on the machine side such that it is set into a rotation (RA) about the tool axis (WA). In addition, the axes controlled in coordination are actuated such that a straight-lined section of the surface line of the tool (20.1) is guided tangentially along the flank (11) in a generating movement while the tool (20.1) removes material on the pre-manufactured flank (11) by means of the rotation (R1) about the tool axis (WA). The generating movement follows pre-specified movement vectors (E).
摘要:
A method of removing at least a portion of an interaction layer on an electrode region of a solar substrate is provided. The method includes a step of providing a solar substrate including an absorbing region and an electrode region. The absorbing region including an absorbing layer configured to convert light energy into electrical energy. The electrode region is substantially free of the absorbing layer, and the electrode region includes an interaction layer. The method also includes a step of brushing the electrode region to remove at least a portion of the interaction layer.
摘要:
Provided is a multi-functional rubbing and separating device, comprising a main body, a rotating axle and lapping blades; wherein a feeding port is disposed on one end of the main body and a discharge port is disposed on another end; the rotating axle and lapping blades are disposed inside said main body; the lapping blades are distributed on outer cylindrical surface of the rotating axle; and multiple through-holes are disposed on an sidewall of the main body. The multi-functional rubbing and separating device herein is added between a flotation tank and a washing tank, which can effectively improve the washing quality for waste plastics, thereby separating waste plastics and impurities more thoroughly and improving the quality of recycled products.
摘要:
The present invention relates to a carrier film for mounting a polishing workpiece. The carrier film comprises a surface substrate and a buffer substrate. The surface substrate consists of first elastomer, the first elastomer comprising a plurality of first holes; wherein the first holes have a drop shape, and each of the first holes has an opening. The buffer substrate consists of second elastomer, the second elastomer comprising a plurality of second holes. The surface substrate and the buffer substrate are adhered with adhesive comprising the first or the second elastomer. A method for making the carrier film is also provided. When polishing, the carrier film provides a good buffer property to conduct and release down force applied on the polishing workpiece.
摘要:
The present invention relates to a method for producing periodic tooth flank modifications, wherein a tool is used during a first stroke carried out relative to a tooth flank of a tooth of a workpiece along an axis, which is rotated by a helix angle β relative to a center axis of the workpiece and which produces an enshrouding plane. The invention further relates to a machine tool, which is designed to carry out said method, and to a computer-readable medium having instructions, which lead to the open- or closed-loop control of a machine tool according to the method above when executed by a processor.
摘要:
Provided is a gear grinding method wherein an initial cutting position by a grindstone is appropriately set, resulting in an improvement being able to be made in machining accuracy. For this purpose, the gear grinding method is such that rotation of a workpiece (W) about a workpiece rotation axis (C), cutting by a grindstone (15) in the X-axis direction, and feeding of the grindstone (15) in the Z-axis direction are controlled, resulting in the workpiece (W) being ground by the grindstone (15). In this method, measurement points (P1-P9) are set in a grid-like pattern on a left tooth surface (WL) and a right tooth surface (WR) of a predetermined tooth (Wa) of the workpiece (W); rotation phases about the workpiece rotation axis (C) at the measurement points (P1-P9) are detected; tooth thickness deviation amounts (e) between a reference involute tooth surface and the measurement points (P1-P9) on the left and right tooth surfaces, as well as tooth thickness deviation amounts (e) between the involute tooth surface and corresponding points (Q1-Q9) on all teeth other than the tooth (Wa), are obtained on the basis of the detected rotation phases; and an initial cutting position (X1) for the grindstone (15) is set on the basis of the largest of the deviation amounts (e).