Study on Nanoscale Friction and Wear Mechanism of Nickel ...

MD simulations were employed to investigate the nanofriction process of the NBSC superalloy. As shown in Fig. 1, the simulation model comprises two parts, namely a diamond grinding ball and a workpiece.Because the research focused on the friction behaviour of the NBSC superalloy and the diamond grinding ball hardly deforms during the friction process, the ball was set …

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US6220933B1 - High infeed rate method for grinding ceramic ...

A method for accurately and economically shaping a zirconia workpiece with a relatively inexpensive silicon carbide grinding wheel is provided. The grinding wheel used in the method preferably utilizes 220 mesh silicon carbide particles bound in a low porosity vitreous matrix. The grinding wheel is then rotated at a sufficient speed to implement a grinding operation, and is engaged against the ...

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Grinding method for Inner Raceway of Roller Bearings ...

The principle of positive and negative grinding method: the workpiece rotates at A certain Angle (different types of workpiece rotate at different angles), and the dressed grinding wheel (with A golden pen to shape the required arc) is used to grind raceway A. After grinding, the workpiece is turned over and the same method is used to grind ...

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US5562523A - Method and apparatus for grinding a workpiece ...

In a grinding method wherein a rotating workpiece and a rotating grinding wheel are relatively moved toward and away from each other and wherein at least three of rough, fine and finish grinding step are performed successively at high, medium and low infeed rates respectively for grinding the workpiece, the grinding wheel is retracted to a back-off position at the end of the rough grinding step.

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US4292766A - Method and apparatus for grinding a workpiece ...

An improved grinding method and apparatus is advantageously used to sequentially grind the pins of a crankshaft. During the grinding of each crankpin, the pin is supported by a steadyrest. During an initial grinding operation, the crankpins are measured or gauged to determine if they are out-of-round by an amount which is greater than the tolerances for the finished crankshaft and less than a ...

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EP0738197A1 - Grinding method and apparatus - Google Patents

A method of grinding a cylindrical workpiece surface in which the speed of rotation of the grinding wheel and/or the speed of rotation of the workpiece is changed one or more times during the final stage of grinding, the period of such rotational speed variation including at least part of the final dwell period in which sizing occurs, thereby ...

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US6077149A - Method and apparatus for surface-grinding of ...

In a surface-grinding method for a workpiece, for example a semiconductor wafer, it is possible to correct or improve waviness and bow and to obtain a semiconductor wafer having no thickness dispersion. Besides, wafer processing to higher precision than that conventionally attained is achieved and at the same time simplification of the processing method and thereby reduction of the cost are ...

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Thinning by Grinding Wheel (Grinding)| DISCO Technology ...

Grinding is a process in which an object is thinned and planarized by using a grinding wheel (abrasive tool for grinding). The workpiece is thinned and flattened by pressing the grinding wheel against it while rotating at a high speed.

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4 types of surface grinder machine and their abrasive ...

The workpiece is ground around the grinding wheel with high grinding accuracy. 2. Horizontal axis round table surface grinder: It is suitable for grinding round and thin workpieces, and can be used to tilt the worktable to grind annular workpieces with different thicknesses. 3. Vertical axis and rectangular table surface grinder:

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Method of grinding workpieces - The Bendix Corporation

A method of grinding workpieces as specified in claim 5 in which the plate member is a cylindrical flat plate-like member having a drive for rotating it about its axis and including apertures extending therethrough with means for retaining a workpiece therein against gravity forces during rotation, and the steps of the method further include ...

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US20170182613A1 - Grinding machine and method for ...

The invention concerns a method for machining a workpiece ( 1 ) by a grinding machine, comprising the step of rotating and translating the workpiece along a first axis ( 4 ) toward the first abrasive wheel; rotating an abrasive wheel ( 6 ) around a second axis ( 61 ) and translating it along a third axis ( 62 ) such that the abrasive wheel grinds a peripheral portion ( 103 ) of the workpiece ...

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Prediction of Tool Forces in Manual Grinding Using ...

Tool forces are a decisive parameter for manual grinding with hand-held power tools, which can be used to determine the productivity, quality of the work result, vibration exposition, and tool lifetime. One approach to tool force determination is the prediction of tool forces via measured operating parameters of a hand-held power tool. The problem is that the accuracy of tool force prediction ...

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JP2005324313A - Grinding method of workpiece - Google Patents

The grinding method for a workpiece according to the present invention is such that "a workpiece having a cylindrical portion and a shoulder portion perpendicular to the cylindrical portion and a grinding wheel rotatably supported around an axis parallel to the axis of the workpiece are rotated. A grinding method for a workpiece in which at ...

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Method of grinding non-uniform workpieces - Ryman ...

A method according to claim 2 in which the workpiece is moved inwardly toward said belt contact surface during the grinding operation until it is ground to the desired tolerance. 4. A method according to claim 1 in which the belt contact surface for the inside of the belt is a rotating roll.

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Workholding for Cylindrical Grinding - Canadian Metalworking

Grinding Process Grinding is a surface finishing operation where very thin layer of material is removed in the form of dust particles. Thickness of material removed is in range of 0.25 to 0.50 mm. Tool used is a abrasive wheel Grinding machine is a power operated machine tool where, the work piece is fed

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WO2000067947A1 - Method for grinding convex running ...

The invention relates to a method for grinding convex running surfaces and exact outside diameters on undulated workpieces (10). In a clamping, a first convex running surface (36) is ground on a discoid partial section of an undulated workpiece (10) during a first grinding operation while using a first grinding wheel (33) that comprises at least one concave lateral surface (35).

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