摘要:
A saw cable guide (1) is provided with a stand (2) and at least two rotatable cable guide rollers (5, 9) mounted pivotably thereon. These are arranged with their pivot axes (8, 12) forming an angle with one another. The saw cable (19) is led around the stand (2) at a corresponding angle. A rotatable deflecting roller (13) is located on the stand (2). The rotatable deflecting roller (13) guides the cable during the deflection and may have a cable guide surface (15) with an oblique profiling (21).
摘要:
A cutting machine has a blade mounted for reciprocating movement. A workpiece is rotated while the blade is reciprocated, and then the workpiece is rotated through smaller angles to complete the cut. A holder is attached to partially cut slices of the workpiece.
摘要:
The present invention is a cutting and processing method for cutting semiconductor materials such as silicon ingots, or machining grooves therein, using a wire saw, a purpose whereof is to obtain a method wherewith high-precision processed products can be stably obtained. By performing cutting processing using a slurry that is either a mixture of free abrasive particles and an oil base such as a mineral oil or a mixture of free abrasive particles and an aqueous solution base such as ethylene glycol material, the effects of improving cuttability, reducing residual processing distortion, suppressing process stress, and suppressing cutting heat can be enhanced, and it is possible to carry on cutting while eliminating the process stress (residual distortion) produced by cutting, and thus to cut low-distortion wafers.
摘要:
A slicing device using yarn includes at least two yard-guide cylinders on which the yarn is wound and by which the yarn can be moved with a reciprocating or continuous motion pressed against a piece to be sliced fixed on a supporting table. The yarn is wound on the yarn-guide so as to form at least two layers of yarn intersecting with one or several non-null intersecting angles (&bgr;) and so as to pass in a straight line from one cylinder to the other. The angle of inclination between the moving direction of the piece to be sliced and a line perpendicular to the plane of the yarn cylinder axes is adjustable so as to obtain strictly parallel slices. The intersection of the yarn layers improves the quality of slices obtained by facilitating the subsequent mechanical treatment operations of surfaces with crossed faults. Moreover, the angle of the yarn layers reduces the shearing and torsional stresses on the support of the piece to be sliced when the slices are being cut.
摘要:
A cutting system by which a material to be worked is cut off by the use of each of abrasive grain-bonded saw wires contained in a saw wire assembly prepared by arranging the abrasive grain-bonded saw wires on a long tape base material along the longitudinal direction thereof in such a way that they are disposed side by side in the direction perpendicular to the above described longitudinal direction, and bonding tentatively these abrasive grain-bonded saw wires onto the tape base material through an adhesive in a releasable manner, comprises means for releasing the tape base material from the saw wire assembly before it reaches the material to be worked; and means for applying a tension to the saw wire assembly and each of the abrasive grain-bonded saw wires.
摘要:
A constitution comprises separated processing of an abrasive grain waste liquid into recycled abrasive grain and a fine abrasive grain mixed liquid in a first centrifugal separator, adding a fresh cutting liquid to the fine abrasive grain mixed liquid to direct the resulting liquid to a second centrifugal separator to subject the same to separated processing in the second centrifugal separator, into waste abrasive grain and a recovered cutting liquid directing the recovered cutting liquid through a recovered cutting liquid tank to a recovered abrasive grain tank, adding fresh abrasive grain and a cutting liquid for dilution to the recovered cutting liquid in the recovered cutting liquid tank and to the recycled abrasive grain to create a recycled abrasive grain mixed cutting liquid, and feeding the recycled abrasive grain mixed cutting liquid to an abrasive grain supply tank. Accordingly, an abrasive grain waste liquid is subjected to separated processing and fresh abrasive grain and a cutting liquid are added thereto to enable making effective use of them as recycled abrasive grain and a recovered cutting liquid. Also, it is possible to attain effective separation in the second centrifugal separator or to reduce wear of and damage on a blade edge of a screw of the second centrifugal separator.
摘要:
The invention concerns a wire sawing device comprising at least a support table (35) bearing a piece to be sawed (34) urged against the set of wires layer (26, 27) two outer wire-guide rolls (10, 11) powered by motors (14, 15) and at least two inner wire-guide rolls (16, 17). The wire (18) is wound on the wire-guide rolls so as to constitute between the inner wire-guide rolls (16, 17) two cross sets of wires (26, 27) whereof the projecting wires are parallel and at a distance from a first space (31) and so as to be returned by the outer wire-guide rolls (10, 11) whereon is provided a second space (30) twice the first space (31). Such an arrangement enables a balanced distribution of forces on the inner wire-guides (16, 17), the surfaces of the sawed slices to be perfectly parallel, the shearing forces on the piece to be sawed (34) to be reduced, a decrease in the cutting pressure, a greater cutting speed and to improve the precision of the resulting slices.
摘要:
A wire saw for cutting shaped articles from a workpiece, having at least two wire webs made from sawing wire, which are used for cutting off the shaped articles and which lie one above the other at a distance h and are tensioned between wire-guide rollers. The wire webs are formed by one or more adjacent and parallel wire segments. In this wire saw, no wire segment covers any other wire segment congruently when the wire webs are viewed from above. The invention also relates to a process for cutting a workpiece with the wire saw.
摘要:
A method for cutting a rare earth alloy of the invention using a wire having abrasive grains stuck thereon is disclosed. The method includes the step of cutting the rare earth alloy while supplying a cutting fluid having a predetermined kinematic viscosity between the wire and the rare earth alloy. The method further includes the step of varying the temperature of a supplied amount of fresh cutting fluid in order to control the kinematic viscosity of the cutting fluid.
摘要:
A method for cutting a rare earth alloy of this invention includes cutting an object to be machined while supplying slurry containing dispersed abrasive grains between a wire and the object to be machined. The wire is driven with a drive member, at least a wire contact face of the drive member being composed of an organic polymer material. Cutting is carried out while a tension in a range between 14.7 N and 39.2 N is applied to the wire.