JPWO2020110107A5

JPWO2020110107A5 -

Info

Publication number: JPWO2020110107A5
Application number: JP2021530121A
Authority: JP
Publication date: 2022-11-29

Claims

A method of performing a cutting operation on a workpiece, comprising:
providing the workpiece, wherein the workpiece is a metal characterized by a thermal conductivity of about 100 W/(mK) (approximately 57.8 Btu/(hr-ft-°F)) or less; providing the workpiece to be fabricated;
A cutting apparatus comprising a cutting insert, said cutting insert having an internal cooling cavity defined by a thin-walled structure on one side thereof, a rake face, a flank face, and defined between said faces. a cutting edge, wherein at least one of the flank and rake surfaces are disposed on the thin-walled structure;
performing a cutting operation on the workpiece using the cutting device, wherein the cutting speed is greater than or equal to about 500 m/min (approximately 1640 ft./min); A method, including

2. The method of claim 1, wherein the thin-walled structure has a minimum thickness of no more than approximately 0.7 mm , and optionally has a minimum thickness of no more than approximately 0.4 mm .

said cutting device wherein said thin-walled structure is associated with a reduction in said cutting speed to less than about 100 m/min (approximately 328 ft./min), optionally to less than about 300 m/min (approximately 984 ft./min) 2. A method according to claim 1 , characterized in that it is not adapted to withstand applied cutting forces.

2. The method of claim 1 , further comprising supplying a cooling fluid to the cooling cavity during the cutting operation.

2. The method of claim 1 , wherein the cutting device has a longer service life as the cutting speed increases.

2. The method of claim 1, wherein increasing the cutting speed results in a greater chip thickness.

is a combination of
One or more cutting devices, each comprising a cutting insert, said cutting insert having on one side thereof an internal cooling cavity defined by a thin-walled structure, a rake face, a flank face and said face-to-face and at least one of the flank and rake surfaces are disposed on the thin-walled structure;
At least one article for providing instructions for using the cutting device by a method of performing a cutting operation on a workpiece, the method comprising:
providing the workpiece, wherein the workpiece is a metal characterized by a thermal conductivity of about 100 W/(mK) (approximately 57.8 Btu/(hr-ft-°F)) or less; providing the workpiece;
performing a cutting operation on the workpiece using one of the cutting devices, wherein the cutting speed is greater than or equal to about 500 m/min (approximately 1640 ft./min); and at least one article, including performing.

8. The combination of claim 7 , wherein said thin-walled structure has a minimum thickness not exceeding approximately 0.7 mm , optionally not exceeding approximately 0.4 mm .

The instructions indicate two or more values for an estimated useful life of each cutting device when performing a cutting operation on a workpiece of the specified material, each value associated with a different cutting speed. 8. The combination of claim 7 , wherein said value of estimated service life increases with increasing cutting speed.

The instructions indicate two or more values of tip thickness for each cutting device when performing a cutting operation on a workpiece of the specified material, each said value associated with a different cutting speed. 8. The combination of claim 7 , wherein said value of chip thickness increases with increasing cutting speed.

A method of performing a cutting operation on a workpiece, comprising:
providing the workpiece;
providing a cutting device comprising a cutting insert, said cutting insert comprising an internal cooling cavity defined by a thin-walled structure on one side thereof;
using the cutting device to perform a cutting operation on the workpiece at a characteristic operating speed that is equal to or greater than a maximum characteristic reference speed;
The maximum characteristic reference speed is a highest characteristic speed, and below the highest characteristic speed performing a reference cutting operation on the workpiece with the cutting device is the thin-walled structure A method associated with structural failure of

12. The method of claim 11 , wherein said characteristic operating speed is at least 1.5 times greater than said maximum characteristic reference speed, optionally at least 2 times said maximum characteristic reference speed .

The reference cutting motion is a continuous cutting motion , each of the characteristic velocities is a respective cutting speed, and each of the characteristic velocities is calculated based on each cutting speed and each feed amount. 12. The method of claim 11 , wherein

12. A method according to claim 11 , characterized in that the cutting device has a longer service life as the cutting speed increases.

is a combination of
one or more cutting devices, each comprising an internal cooling cavity defined by a thin-walled structure on one side thereof;
and at least one article providing instructions for using one of said cutting devices using the method of claim 12 .