SU1484653A1 - Method of supplying lubricant-coolant to a cutting tool - Google Patents

Description

The invention relates to obrabat2

ke metal cutting. The aim of the invention is to increase the cooling efficiency and tool life by creating an antifriction and wear-resistant coating on the tool surface. An electric field with a voltage of 0.5–30 V is created around the instrument, and a JUICE is supplied through the indicated field, which is used non-conducting on an oil basis with metal-containing additives.

Metal ions from the additives are transferred to the tool and deposited there, creating and maintaining coating during the entire Cutting Process. 1 tab.

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The invention relates to metal cutting, and in particular to methods of supplying coolant (JUICE) to the cutting tool.

The purpose of the invention is to increase the cooling efficiency and tool life by creating an anti-friction and wear-resistant coating on the tool surface.

The method is as follows.

An electric field with a voltage of 0.5–30 V is created around the instrument, and a JUICE is supplied through the indicated field, which is used non-conducting on an oil basis with metal-containing additives to the instrument. When COM is fed, metal ions from the additives are moved to the tool edges, deposited on them and create an “anti-friction and wear-resistant coating on the tool, which is restored on it after the edge passes through the cutting zone.

Example. Samples of steel IH15 hardness HB 170-190 is fixed inside a cylindrical metal cup. In a glass from the tap, they irrigate a 2% oil solution of a JUICE with a copper-containing additive. An additional electrode is installed on the tap (isolated from it), which is immersed in the supplied flow of the SOC and is connected to the negative pole of the external current source. The metal cup is isolated from the machine table and connected to the positive pole. Through the glass is positive. voltage is applied to the workpiece. Experiments are carried out with drills from steel ΙΙ6ΙΙ5 with a diameter of 10 mm. To isolate the tool from the machine spindle, the drill shanks are varnished. On the handle that moves the spindle STAN „„ 1484653 A1

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1484653

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in axial direction, the load is suspended, creating a constant axial force P ₆ = 900 N. The machine spindle speed η = 900 rpm. Yipin del rotates in the opposite direction to what occurs when drilling. This ensures high specific loads and high speeds of moving the working surfaces of the drill relative to the workpiece without cutting the metal.

Experiments are carried out at voltages, V:

0; 0.5; 3; 15; 30 and 50. Each experiment is repeated three times and the arithmetic average of the wear of the cutting edges at the angle is determined.

The test results are shown in the table. ,

Claims (1)

Claim The method of supplying coolant to the cutting tool, in which an electric field is created around the tool and coolant is supplied through the field, characterized in that, in order to improve cooling efficiency and tool durability, coolant is taken to be non-conducting on an oil basis with metal-containing additives , and the electric field creates a voltage of 0.5-30 V. I Experience Voltage, AT Wear on drill angle after 120 minutes of work, mm one 0.0 0.32 '2 0.5 0.18 3 3.0 0.15 four 15.0. 0.08 five 30.0 0.12 6 50.00 0.36