CN205733042U - High temperature alloy dry cutting semifinishing square indexable turning insert - Google Patents

Abstract

The utility model relates to a square indexable turning insert for dry cutting and semi-finishing of superalloy, which is suitable for the technical field of dry cutting and semi-finishing of superalloy. The utility model aims at high cutting temperature, difficult chip breakage, difficult chip removal, serious blade wear and damage, short service life, low processing and production efficiency, difficult machining accuracy and surface integrity of most existing blades when dry cutting and processing superalloys. To solve problems such as guarantee, a square indexable turning insert for dry cutting and semi-finishing of superalloy is provided. The utility model comprises a square turning blade main body (5), a rake face (2), and a knife bottom support surface (9). The four corners of the main body are circular-arc knife tips (1), and the center of the turning blade main body is provided with fastening screw holes. (6), a straight cutting edge (8) is provided around the main body of the turning blade, and gourd-shaped protrusions (3) are respectively provided near the four circular-arc knife tips (1) of the main body of the turning blade. Around the surface (2) is provided with a surrounding concave chip flute (7), and on the insert body concave chip flute (7) is respectively provided with six inclined chip guides (4) along the direction of the straight cutting edge (8) , the bottom surface of the main body of the turning blade is provided with a square cooling groove (10). The utility model is used for dry cutting and semi-finishing of superalloys.

Description

Square indexable turning inserts for semi-finishing dry cutting of superalloys

technical field

The utility model is suitable for the technical field of high-temperature alloy dry cutting, in particular to a square indexable turning blade for dry cutting semi-finishing of high-temperature alloy.

Background technique

Superalloys are necessary metal materials for modern aviation, aerospace, navigation and nuclear industries, especially the development of nickel-based superalloys has played an important role in improving the performance of aero-engines in my country. The mechanical properties, oxidation resistance and high-temperature deformation resistance of the materials Excellent performance. In the 21st century, due to the enhancement of people's awareness of environmental protection and the requirements of sustainable development strategies, green manufacturing and clean production have become an important feature and basic production mode of the machinery manufacturing industry. The current green cutting technology is mainly dry cutting technology and the use of Green cutting fluid. However, since superalloy is a typical difficult-to-machine material, its cutting performance is poor, its thermal conductivity is low, and it is easy to harden during processing. As a result, most existing inserts have high cutting temperature, difficult chip breakage and difficult chip removal when dry cutting superalloy. Severe wear and damage of blades, short service life and other problems lead to low processing production efficiency and difficulty in guaranteeing the processing accuracy and surface integrity of workpieces.

Contents of the invention

The utility model aims at the problems of high cutting temperature, serious blade wear and damage, short service life, difficult breaking of chips and difficulty in chip removal when most existing blades are dry-cutting high-temperature alloys, and provides a square blade for dry-cutting semi-finishing of high-temperature alloys. Indexable turning inserts.

In order to achieve the above object, the utility model adopts the technical scheme as follows: the utility model comprises a square car blade main body 5, the four corners of the main body are circular arc knife points 1, and the center of the car blade main body is provided with a fastening screw hole 6, and the car blade There are linear cutting edges 8 around the main body, gourd-shaped protrusions 3 are respectively provided near the four arc tool tips of the turning blade body, and concave chip removal grooves are arranged around the rake face 2 of the turning blade main body 7,

Six inclined chip guide platforms 4 are respectively arranged in the concave chip removal groove 7 of the insert body along the direction of the straight cutting edge 8, and a square heat dissipation groove 10 is arranged on the bottom surface of the turning insert body.

The beneficial effects of the utility model are:

1. The square indexable turning inserts for dry cutting and semi-finishing of superalloys adopt a larger arc tip 1, which is conducive to improving the strength, impact resistance and durability of the cutting edge, and reducing the surface roughness of the processed workpiece;

2. The square indexable turning insert for dry cutting and semi-finishing of superalloy adopts gourd-shaped protrusion 3, which increases the strength of the tool tip and is conducive to the breaking of chips, which is conducive to the smooth progress of cutting processing;

3. The square indexable turning inserts for dry cutting semi-finishing of superalloys use six inclined chip guide tables 4, which are beneficial to control the flow direction of chips, so that chips can flow out of the rake face quickly, reducing the friction area of the tool and chips, thereby reducing Processing temperature, improve the service life of the blade;

4. The square indexable turning blades for dry cutting and semi-finishing of superalloys adopt concave chip grooves 7 all around, which is conducive to the outflow of chips after being broken by gourd-shaped protrusions 3, and the larger chip grooves can reduce The friction between the small chips and the rake face makes the chips discharge smoothly;

5. The square indexable turning inserts for dry cutting and semi-finishing of superalloys use straight cutting edges 8 to ensure the maximum insert thickness, which is beneficial to improve the strength of the inserts and the stability of cutting processing;

6. Square indexable turning inserts for semi-finishing high-temperature alloy dry cutting use square cooling grooves 10, which is conducive to the rapid heat dissipation of turning inserts, so that the inserts can maintain better cutting performance.

Description of drawings

Below in conjunction with accompanying drawing and specific embodiment the utility model is further described.

Fig. 1 is the front view of the utility model.

Fig. 2 is a cross-sectional view along the line A-A of Fig. 1 .

Fig. 3 is the rear view of the utility model.

Fig. 4 is an enlarged view of I in Fig. 2 .

detailed description

Specific embodiment 1: As shown in Figure 1 to Figure 4, the utility model includes a square turning blade body 5, a rake face 2, a knife bottom support surface 9, four corners of the main body are arc tip 1, and a turning blade body The center is provided with fastening screw hole 6, is provided with straight line cutting edge 8 around the main body of turning blade, is respectively provided with gourd-shaped protrusion 3 near the four circular-arc knife points 1 of turning blade main body, and is arranged on the rake face of turning blade main body 2. There are surrounding concave chip removal grooves 7 near the blade body. Six inclined chip guide tables 4 are respectively arranged in the concave chip removal groove 7 of the blade body along the direction of the straight cutting edge 8. A square cooling groove is arranged on the bottom surface of the turning blade body. 10.

Specific Embodiment 2: As shown in the front view of FIG. 1 and the enlarged view of FIG. 4 , the gourd-shaped protrusion 3 in this embodiment enhances the strength of the knife tip while facilitating the breaking of chips, and six inclined chip guide tables 4 control the cutting of chips. The flow direction reduces the friction area of the knife-chip, thereby reducing the processing temperature, which is beneficial to protect the tool and prolong the life of the tool.

Embodiment 3: As shown in the front view of FIG. 1 and the rear view of FIG. 3 , the four-sided concave chip removal groove 7 adopted in this embodiment is conducive to the outflow of chips after being broken by the gourd-shaped protrusion 3 . The large chip removal groove can reduce the friction between the chip and the rake face, so that the chip can be discharged smoothly; the square heat dissipation groove 10 is conducive to the rapid heat dissipation of the main body of the turning blade, so that the blade maintains good cutting performance.

Specific Embodiment 4: As shown in the front view of FIG. 1 , the square indexable turning insert for semi-finishing superalloy dry cutting according to this embodiment has a main cutting edge of a straight cutting edge 8 and a positive rake angle of 8°. The relief angle is 10°, the radius of the tool nose arc is 0.8mm, and the blade inclination angle is 0°. The blade designed in this way can reduce the wear of the front and rear cutter faces of the blade, reduce the plastic deformation, and reduce the Minor work hardening ensures edge strength.

The above embodiment proves that the utility model can deal with the high cutting temperature, difficult chip breakage, difficult chip removal, serious blade wear and damage, short service life, machining accuracy and surface integrity of most existing blades when dry cutting superalloys In order to solve the problems such as difficult guarantee of performance, a square indexable turning insert for dry cutting and semi-finishing of superalloy is provided.

Claims (1)

1. Square indexable turning inserts for semi-finishing dry cutting of high temperature alloys, including square turning insert body (5), rake face (2), tool bottom support surface (9), the four corners of the main body are arc tip (1), the center of the main body of the turning blade is provided with a fastening screw hole (6), a straight cutting edge (8) is arranged around the main body of the turning blade, and four circular arc tool tips (1) of the turning blade main body are respectively provided with The gourd-shaped protrusion (3) is provided with a surrounding concave chip removal groove (7) near the rake face (2) of the main body of the turning blade. ) directions are respectively provided with six inclined chip guides (4), and a square cooling groove (10) is provided on the bottom surface of the main body of the turning blade.